Hafler DH-200 Stereo Amplifier User Manual
Contents
1. G z o 8 gt S m n z a 5 5 Bussssesssos ba E sat AH La 9 4 1 sa A SHE ae N a A E YL Di s Kl ss so ec Tr Bus n m H39NVG TE Be c EE EN Gu n 4 L1 g p i g ot 8 038 E CR 5 23 PC BOARD LAYOUTS EMI FILTER HAFLER 2460 2 5 KS4R 9 J4 C2 J3 E 5 J9 L3 J6 BLACK BLACK 213 Li C6 1 8 E C3 J5 J7 ORG ORG J14 J10 65 _ i 12 J8 J15 Jtt 7 WHT J16 C1 C4 J12 WHT Ri R2 R3 R4 CROSSOVER CD EQ HP 24 PC BOARD LAYOUTS TIME DELAY PHASE INVERTER cea 60 059 IP ER ATI 25 Schematic Diagrams BRIDGE RECTIFIER 07 90755 Aooz 099 3 0001 RN2. JWBATA 15V ol JW6AIC eng C108 cat 8 50V 5 8 50V SONE O tuF 50V JWGAID LM393 8 of TL072SM LM339SM 2107234 cus O luF 50V 6120 0 1uF 50V INBA of gt 4 4 JWBATJ 10 15V JWBATK oll 5v gt JWGAM S QTY 100uf 25V 838 338 22 gt d E e o St JWSATO t 62212 8176 JW6ATP fre NMBT5087L 049 048 MMBT5087L 100 ho 8175 JWBAIE Q46 5 100 R141 i c103 C104 IL CR32 sut R130 MMBT5087L 034 ADD FOR 10uF 16V 10uF 16V 5306 100 o ESE 680pF 50V GR MODELS 6 8 lt 8 ONLY Us Ran 3 UWBAIG 499 499 R282 USt 5 1 1 10725 AGND R318 R319 0 CR37 4 7pF 100V de 1 at 28 0K UNB 5 1 Dem R210 f AN R123 JW2 1 STEREO 053 wy 5 OUT 28 0K TL072SM 5 9 174 ale 4 7pF 100V 22 5 5 lt 5 l cu2 825 1 MONO 694 c70 1 w2 4 S 55255 S o 4 STEREO S lt JWBAIF 499 499 880857 50 eS 9 EX R291 bes 3 AGND 5 5 swe 28 0 R317 R320 R279 d gt 91 1 7587 MONO 0 0027u OUT SIGNAL IN R215 FROM CHB Bia AGND EN 100 x KR 8 8 R209 1 00K 5 10 35 4 4 55 ese 050 Tuv MMBT3904L A CR35 10uF 35V MMBZ5231BL JW9 1 R
3. 16V 16V p 102 v 8 O tuF 50V mx OUT gt e OUT 4 LM393 4 cios C61 0 50 Y n 16v 10uF 16V 15F STR DC RAIL 53 ssi t t t t gt E 2 2 SFH154 SFHIS4 ae Se 6129 i D Q20 418 1 k 0 0022uF 50V C64 3 3 3 100pF 50V 1000pF 100V_ 7 2 252 z SFH154 SFH154 SFHI54 d R 8 RIZ 015 016 zoe 1 QU up pwN C84 470 1 Lo 4 8178 8177 100 3 3 gw R90 100 100 cm 100 N PROT gt ass 258 sss I N2 lt 4 IM 330ut 63Y gt O 1uF 100v 5 56 FIT ET 100 RBB RB9 4 cn 553 852 ES 8 100 ESS ese c5 ES S I N 100 100 LE gt C63 S 7 50 2 RIN 5 0 22uF 125V 8 R109 A 110 Cn OUTPUT OUT sid 255 2255 sss gt gs ess ESS SIGNAL 2 v Fis 029 MPSA06 sa i IRF1010E 1 1010 en E e O Ge 4 Sour sov 5 GND RF IND DI 141 sour AN 552 E R122 jj ad R TRANSFORMER 8 lt 2 2 3 soe 828 ESS 5 lt 8 P Il CENTER ESS SIE iE 100 ss RMI 100 272 DRIVE 100 100 100v 523 822 SIGNAL R94 R92 238 838 2 lt 8 E lt S Sc lt R91 100 100 0 5 06 I P2 lt 4 2 470 i jovi 100 R76 R75 5 R174 28 ess 858 X 174 3 3 3 2 328 Ze 228 330uf 63V Ale 73 100pF 50V UB lt ET E e di P tur 100V 028 427 025 3 937 MPSA06 SFH9154 SFH9154 SFH9154 1 1 1 2 z
4. SHORT PROTECTION 15v 073 MMBT3906L DC RAIL 53 _ gt 4 MMBT3906L RMS PROTECTION 8226 018 019 020 i ok 71 5K R247 LM393 5 14 01 28 0k o 8237 MMBT3906L 8 33 6 19K en 5212 0 tuF 50V 4 4 238 10 0K 10 0K 1000pF 100V 10 0K our gt 10 3 3 gt LI OUT 5 32 lt 15V ZR125 ci ce T T 955 6 271 1 O tuF 50v 0 1uF 50VT at TE 8 8 082 5 5 gt TLO7 10uF 16V ILOZ2SH 4 gt PROTLED L CT 8 0 1uF 50VT O tuF 50V G PROTLED MMBTAS6L MMBTASBL 5 1 032 RMS CLAMP SHORT THERMAL CLAMP gt N PROT 015 016 017 gates R25 NV YO THERMAL 10 0K HSV R312 15 10 0K 135 10uF 16V 1 ct07 0 1uF 50V oS n 83 Lg 0 1uF 50VT7 8 8 98 TL072s5M 001124 ourT 4 4 TLO72SM our gt 5 TLO72SM 1 105 O tuF 50VT o tur 50V 15F gt out gt CT o R231 ES 1 00K 10uF 35V C106 070 RMS CLAMP MMBTAS6L A 5 gt u D PROT 018 019 020 gates 15V
5. Importer s Name Importer s Address Type of Equipment 2 channel Audio Power Amplifier Model No GX2300 GX2600 GX2300CE GX2600CE Serial Number Year of Manufacturing 2000 2001 2002 12003 the undersigned hereby declare that the equipment specified above conforms to the above Directive s and Standard s Place Hafler pe Date 5 1 2000 James C Strickland VP Engineering NOTICE IMPORTANT SAFETY INFORMATION CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING TO PREVENT FIRE OR SHOCK HAZARD DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE 1 READ INSTRUCTIONS All the safety and operating instructions of your equip ment should be read before power is applied to the equipment 2 RETAIN OWNER S MANUAL These safety and operating instructions should be retained for future reference 3 HEED WARNINGS All warnings on the equipment and in the operating instructions are important and should be followed 4 FOLLOW INSTRUCTIONS All operating and use instructions are important and should be followed 5 HEAT The equipment should be kept away from areas of high temper ature i e heater vents radiators stoves ovens fireplaces etc 6 VENTILATION The equipment should be used in an area suitable for proper ventilation Care should be taken not to impede airflow in and around the cabinet
6. 7 WATER AND MOISTURE The equipment should not be used in or around water such as a bathtub sink or swimming area Also the equipment should not be used in areas prone to flooding such as a basement 8 POWER SOURCES The equipment should be connected only to a power source of the same voltage and frequency as that listed on the rear panel above the power cord entry point 9 POWER CORD PROTECTION Power cords should be arranged so they do not interfere with the movement of objects in the room people fan blades utility carts etc Also care should be taken that the cord is not pinched or cut and placed so it is not in danger of being pinched or cut as in under a rug around a tight corner etc 10 POWER CORD GROUNDING The power supply cord is of a three wire grounded type designed to reduce the risk of electric shock sustained from a live cabinet It is assumed to be of suitable length for most uses of the equipment The use of extension cords and power strips is discouraged unless they are of suitable rating to deliver the required total current for safe operation of all connected equipment Furthermore extension cords or power strips must The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsu lated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons The
7. R307 823 SHORT PROTECTION MMBTASEL 0137 10uF 16v HN 667 0 tuF 50V 1 100 R300 8 R188 LM393 ose ae R169 10 0K 5 117 F 50V gt 047u R187 10uF 16V 15v ae Te MMBT3904L 50V 0 O tuF 50V 15V gt 5 THERMAL 8165 sl MMBT3904L Dam 90 RMS CLAMP 10uF 16v DC RAIL 53 gt RMS PROTECTION 950 SHORT THERMAL CLAMP Rue Q26 027 028 13 0K 4 22K 100K 2 71 5K 2107934 T MMBTAOGL MMBTAOGL USB CR33 2 TL072SM P PROT R145 MMBT3904L gt R185 026 027 028 619 7 15K dales R158 14 10 0K 10 0K gt gt 0145 0 1uF 50V 152 5071 d 110725 DUT gt Ut9C gt OUT O gt 4 4 sp Y LM393 uses 153 Our 507 7 0 tuF 50 1 our gt 4 4 074 gt our MMBT3904L p y C109 10uF 16V 15F 071 MMBTAOGL DC RAIL 53 DO Y RMS CLAMP MMBT3904L 2 2 3 R228 R248 28 859 R 100K RMS PROTECTION s 71 5 7108 023 024 025 4 R258 D U D PROT 12 1K Q23 Q24 Q25 28 0K gates R246 G PROTLED 6 19K R236 114 N 10 0K _0 1uF 50V 5 R359 23 2K R251 M I P2 2 10 0K LI VN MMBT5551LT1 our 5 gt 8 R360 10 0K R361 4 75K 15F XX X 582300 VALUES PARENTHESIS C600_maualB sch 2 33 HIGH VOLTAGE CONTROL 15PWM d 62 MT 0 1uF
8. L apparato deve essere impiegato su carrelli o stand solo se questi sono sufficientemente solidi e stabili per la funzione a cui si vuole dedicarli La combinazione di carrello ed apparato deve essere mossa con cautela Fermate e partenze improvvise forze eccessiva e superfici irregolari possono ribaltare la cominzione carrello e apparato 1 Specifications All measurements taken at Normal Operating Conditions i e 1 8th rated output power unless noted otherwise POWER RATING 8Q 20 20kHz 0 1 THD 4Q 20 20kHz 0 2 THD 2Q 20 20kHz 0 3 THD 70V 20 20kHz 0 2 THD 100V 20 20kHz 0 2 THD Bridged 8Q 20 20kHz 0 2 THD Bridged 4Q 20 20kHz 0 3 THD FREQUENCY RESPONSE INPUT SENSITIVITY 4Q 2Q MAX INPUT SIGNAL TO NOISE CMMR INPUT IMPEDANCE DAMPING FACTOR POWER THERMAL REQUIREMENTS Idle Condition U version CE version Thermal Dissipation 300W x 2 CH 300W x 2 CH 300W x 2 CH 600W x 1 CH 600W x 1 CH 600W x 1 CH 600W x 1 CH 10Hz 20kHz 0 1dB 0 2Hz 100kHz 3dB 0 9V 0 6V 0 45V 3 0V gt 100dB A WGT gt 75dB at 1kHz 47 per phase balanced gt 500 55W 860mA 115VAC 430mA 230VAC 190 BTU hr Normal Operating Condition 1 8 rated power pink noise 280W U version CE version Thermal Dissipation Worst Case 1 3 rated power pink noise U version CE version Thermal Dissipation FUSE U version
9. 2 A00Z 1n089 1002 1089 il 1089 i a00z 1n099 094 SANM 229 m 19 A00Z sn089 AO0Z 089 A009 vor 89 984 9130 JONVYO 39v18 26 EMI FILTER 495 9 09 2 4 E gk 082445 7 i 062045 2 062045 br gib 082046 2 062045 Ir 4 T 062045 Fr 1249 09 140043 _ 99 1247 09 0 3 _ 19 hos Viv b 8187 19 vary vel 082045 NI ENZ Ka7 NEON 1246 09 M 1d001 _ Lo 1249 02 AML 4400L4 9 AU vzi qug ga UN 81 092 1047 8187 19 MANTE O varuugt or O sr 0 4 8182 49 ar O it En UIJ 7 5 3 2 ove vr A an 41 22 Ja zr 27 Schematic Diagrams CROSSOVER CD EQ 19P10 ZH 008 ZH 008 28 TIME DELAY PHASE INVERTER 4 8 8 8 8 gt 3 29 AMPLIFIER
10. 655 a Lai D 630 Tour 50v 100uf 25V 5 6 0 tuF 50V 9 4 Bi BE 298 al ene t gt gt D gt mv T 100uf 25V t gt gt 1L gt AGND 3 CRIS O tuF 50V ORE gt 279 1A 100V t 5 gt gt CR14 1 5 gt gt 16_ our ta 100v C56 c52 125 gt 15F gt 100uf 25V 6 ME gt 520 vean 1 m C38 am C47 C157 160 158 C161 C162 C163 C164 C166 C165 150pF 1KV CRIS O tuF 50V gt 100uf 25V HS2 1 4 1A 100V 5 1000pF 100V 2 ek CHGND R54 H3 51 C48 1A 100V C50 posa 0 1uF 50V 100uf 25V 4 4 4 R47 10 0K C117 R269 0 1uF 50V 20 0K CR57 R262 R263 NN NN gt PWRON 4 75K 100K 14 100V R27 4 20 0 R30 C24 R52 R51 10 0K n 15 0 01uF 50V USED C600_maualB sch 6 37 INPUT 15VCC SCREW TO O CHASSIS JW6A2K 185 4 2 C184 53 1 470pt 1KV AUDIO GND Bois 5 2 c126 0133 E JUMPER TO AMP GND O tuF 50V 47uF 16V BINDING POST 67 Sce m OUTPUT X43 X52 BLK RED CHGND 4 4 WIRE C138 JUMPER TO AMP NS JW6A2L TLO72SM TL072SM 50v gt C124 o ADD FOR 4 47uF 16V JW6A2A CX MODEL
11. ctrico a las personas El s mbolo de exclamaci n dentro de un tri ngulo equil tero es para alertar al usuario de la presencia de instrucciones impor tantes de operaci n y mantenimiento servicio en la docu mentaci n que acompa a al equipo un chasis energizado Se asume que su longitud es suficiente para la mayor a de usos del equipo El uso de extensiones y multienchufes no es recomendado a menos que tengan el amperaje adecuado para poder suministrar la corrioente requerida pra la operaci n segura de todo el equipo conectado Aun m s las extensiones deben proveer de la misma conec ci n aterrada de tres hiles Es importante que el enchufe se pueda introducir completamente en el recept culo Nunca remeva el pin de aterramiento en un intento por conectar el cable en un recept culo de dos hilos no aterrado use un adap tador de aterramiento que est adecuadamente conectado a un punto de tierra 11 PERIODOS SIN USO Durante per odos prolongados sin uso del equipo el cable de corriente debe ser desconectado de la fuente de electrixidad 12 LIMPIEZA El equip debe ser limpiado solo en la forma que se detalla en las instrucciones de operaci n 13 INTRODUCCI N DE OBJETOS Y LIQUIDO Deben ser tornadas precauciones con el fin de que objetos y l quidos tales como fluidos de limpieza y gaseosas no sean derramados dentro del chassis del aparato 14 DA OS QUE REQUIEREN DE SERVICIO Los equipos Ha
12. cv 35 T4B 2785 HOUSEKEEPING CONTROL 354DC HI 354DC LO CRI N 400V 1A ES 1K R19 5 4 uf 400v 120K 632 NN MJD50 R316 36 5 71 CR65 12V 1A 100V 2 E 1A 100V R49 510 c12 R343 1 25V POWER AAN 2 100uf 25 1 CR67 2 74K Y 2b 7 eps J14 04 50 C19 9 R46 1 C4 J3 15 13 15pF 50V RI ES N OO AA 35 2480 200 Li 330pF 50V UC3425N R2 R7 PEZ _ 4 ANN ANN AAN 1 INV 02 20 0 20 0 7 68 scuo L2 J17 J16 2h jd OUT A R20 5 3 1 VREF ILIM SD 10 0K N ese 8 155 RAMP Z as 0 01uF 50V CT RT 6 es 10 5 0 01uF 50V 15pF 50V i 6 c18 67 8 0 01uF 50V 100V eS 100pF 50V e 4 4 4 4 J15 LO 36 CR10 n TT 2603 C 1A 100V 13 O F 50v 044 100uf 25V 4 4 2 CR17 lt gt R58 1 00K 10 0 e es gt SYNCX CRI 14 100V 15PWM lt 15 10pF 50V JW11 4 gt CR12 3 T gt gt 2 HST 100uf 25V 1A 100V 14
13. l int rieur du pro duit qui pourrait tre de magnitude suffisante au risque d l c trocution Le point d exclamation l int riur d un triangle quilat ral pour objet de pr venir l utilisateur de l importance des instruc tions de fonctionement et de maintenance jointes l appareil sations de ce mat riel L utilisation de rallonge t d adaptateur est d consell e moins d tre en mesure de fournir la charge lectrique requise un fonctionement sans risque de tout mat riel reli 11 P RIODES DE NON UTILISATON Durant les p riodes de non utilisation la prise de courant ne devrait pas tre branch e une source d energie 12 NETTOYAGE Le mat riel devrait tre nettoy en respectant les instructions indiqu es 13 PENETRATION DES LIQUIDES Un attention particuli re est xig e quant la dispersion de liq uides tels que les produits de nettoyage et boissons de faccon viter toute p netration dans l enceinte du mat riel 14 D G T N CESSITANT UNE R VISION Le mat riel Hafler devrait tre r vis par des personnes qual if es de service apr s vente lorsque A Les fiches ou la prise de courant ont t endommag ou B De objets sont tomb s sur le mat riel ou des liquides s y sont dispers s ou C Le mat riel a t expos la pluie ou D Le mat riel ne semble pas fonctioner correctement ou affiche un changement de performance ou E Le mat riel a t re
14. weiterf hrenden Service sollte nur von qualifizierten Tevhnikern durchgef hrt werden 16 AUFSTELLUNG Das Equipment sollte so aufgestellt werden dab der gew hlte Untergrund die erforderliche Stabilit t aufweist so dab eine gefahrlose Bnutzong gew hrleistet wird Das Equipment und der Untergrund sollte mit uberster Vorsicht bewegt werden Bei schnellen Bewegungen oder starkem Abbremsen kann es zum Umkippen des Equipments kommen ATTENTION INFORMATIONS IMPORTANTES DE S CURIT ATTENTION RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR AVERTISSEMENT Afin de prevenir les risques de feu ou de choc ne pas exposer cet appareil la pluie ou l humidit 1 LIRE LES INSTRUCTIONS Le mode d emploi et les mesures de s curit de votre quipement Hafler devraient tre consult s avant sa mise en marche 2 CONSERVER LE GUIDE DE L UTILISATEUR Le mode e emploi et les mesures de s curit devraient tre conserv s pour des r f rences futures 3 CONSID RATIONS DE MISE EN GARDE Le mode d emploi et les mises en garde concernant cet quipement sont de grande importance et devraient tre suivis 4 SUIVRE LE MODE E EMPLOI Le mode d emploi et les conseils d utilisation sont importants et devraient tre suivis 5 CHALEUR Le mat riel devrait tre pr serv loin de toute source de chaleur radiateurs cuisini re fours chemin es etc 6 VENTILATION Le mat riel devrait tre utilis dans un endroit
15. 115VAC nominal CE version 230VAC nominal MAINS POWER VOLTAGE U version CE version both channels driven at rated power 3 5A 115VAC 1 7A 230VAC 680 BTU hr 550W 6 6A 115VAC 3 3A 230VAC 1200 BTU hr 7A Slo Blo 2 ea T5A 5 x 20mm 2 ea 100 140VAC 50 60Hz 200 260VAC 50 60Hz 600W x 2 CH 600W x 2 CH 600W x 2 CH 1200W x 1 CH 1200W x 1 CH 1200W x 1 CH 1200W x 1 CH 10Hz 20kHz 0 1dB 0 2Hz 100kHz 3dB 1 3V 0 9V 0 6V 3 0V gt 100dB A WGT gt 75dB at 1kHz 47 per phase balanced gt 500 70W 1 0A 115VAC 500mA 230VAC 240 BTU hr 490W 5 8A 115VAC 2 9A 230VAC 1160 BTU hr 1000W 12A 115VAC 5 9A 230VAC 2080 BTU hr 15 Slo Blo 2 ea T6 3A 5 x 20mm 2 ea 100 140VAC 50 60Hz 200 270VAC 50 60Hz Specifications cont O SS CES D gt gt i gt gt Sp oxn Hafler a e 1 5 Bu 17000006000 3 r Ve SIENAL PROTECT STEREO MONO CUP THERMAL 218151 9 gy 00 224 EJ ee ous O DE gt gt 2 DIMENSIONS 20 3 5H x 19 W x 18 5 D 20 3 5H x 19 W x 18 5 D rack handles add 1 25 D rack handles add 1 25 D WEIGHT 32lbs 14 51 kg 32lbs 14 51 kg In
16. 5 CY Y Y 10 mE 6 L18 8 1 7 8 DC 53 A 30A 400V 0 BIAS C177 4 5 470pf 1KV gt gt gt DC RAIL 53 1 3K 1W tl_ 97 T C40 t c17 637 pror p 330ut 63v 330ut 63V 7 gt 330uf 63V 330uf 63V ro Zi cai 1 1 16 1 1 3 C178 EL c39 A R338 C26 1 20 330uf 63V C16 C36 gt DC RAIL 53 M 83V 3041 63V lt 0ut 63v T 30ut 63V gt 6812 93 470pf 1KV 1 3K 1W CRI 7 3 12 c170 1 3 0 01uf 1KV DC 53 B 13 LIA 30A 400V 14 77 1 3K 1W TT 2602 B 470pf 1KV R342 1 3K 1W XX X SR2300 VALU ES IN PARENTHESIS 4 C600_maualB sch 5 MAN 2987 A 6 00 MJT A DIVISION OF 9 ROCKFORD CORPORATION 546 SOUTH ROCKFORD DRIVE TEMPE ARIZONA 85281 U S A IN U S A 480 967 3565 IN 604 942 1001 IN EUROPE FAX 8503 9340 14 IN JAPAN FAX 81 559 79 01265
17. bonne ventila tion Il reste n cessaire de respecter la circulation de flux d air l int rier et autour du meuble 7 EAU ET HUMIDIT Le mat riel ne devrait pas tre utilis pr s d une source d eau telle qu une baignoire un vier ou une aire de baignade De plus le mat riel ne devrait pas tre utilis dans des lieux sujets aux innondations tels que les sous sols 8 SOURCES D NERGIE Le mat riel devrait seulement tre reli une source d nergie de m me voltage et fr quence que celle indiqu e sur le tableau arri re au dessus de la fiche d entr e de la prise de courant 9 PROTECTION DE LA PRISE DE COURANT La prise de courant devrait tre arrang e de fa on ne pas interf rer avec le d placement d objets chariots pales de ven tillateurs etc ou de personnes l int rieur de la pi ce D autre part il faudrait faire tres attention ce que la prise ne Soit pas perc e ou coup e ou dispos e de facon risquer de l tre comme sous un tapis autour d un angle pointu etc 10 PRISE DE COURANT TROIS FICHES La prise de courant est compos e de trois fiches d sign es r duire le risque de d charge lectrique de l appareil Elle devrait tre de longueur suffisante pour la plupart des utili La lumi re clignotante du symbole de la fl che l int rieur d un triangle quilat ral pour objet d alerter l utilisateur de la pr sence d un voltage dangereux non isol
18. cool Allow a minimum of 3 clearance on the front and back of the amplifier vents for adequate ventilation Chassis Float ground switch Isolates Audio GND and helps eliminate noise in the signal chain With the switch in Chassis position the Audio GND is connected to chassis ground In the Float position the Audio GND is isolated floating from the chassis The chassis is permanently connected to earth safety ground Mains Power Fuse Protects the mains electrical circuit in case abnormal current draw from the amplifier is experienced Mains Power Connector Connects AC Voltage to the amplifi er The power connector is safety approved IEC type 320 The earth safety ground pin of the power connector is permanent ly connected to the chassis This connection is capable of shunting in excess of 30A of fault current Stereo Biamp Switch This dual purpose switch selects either standard 2 channel stereo mode or 1 channel in 2 channels out Biamp mode Turn amplifier off before operating this switch Removable Rear Panel 8 screws can be removed to service fans and internal components without unracking the amplifier Installation The GX2300 2600 is standard 21 2 rack height 19 rack mount unit with both front and rear rack mounting ears In portable systems the amplifier must be supported at both the front and rear COOLING The GX2300 2600 uses forced air cooling fan cooling to r
19. dB The maximum gain position is marked as the O dB position and the lower gain posi tions indicate the amount of attenuation relative to the maximum gain position in dB Minimum gain position is marked as Off and represents over 100dB of attenuation relative to the maximum gain position level control is used for all Bridged Mono configurations and 100 and 70V modes Except for GX2600 Dual 70V mode each channel See diagrams The Stereo Biamp switch is defeated whenever the front panel Stereo Mono switch is in the Mono position In this case the Stereo mono switch overrides the Stereo Biamp switch and the amplifier operates in mono mode STEREO BIAMP SWITCH Turn amplifier off before operating this switch This switch is located on the rear panel and selects either Stereo mode 2 input signals and 2 output signals Biamp mode 1 input signal and 2 output signals Biamp mode is useful if a mono signal needs to be distributed to speakers of differing impedance or power level The load switch for each channel can be selected for the appropriate load and the level controls can be adjusted individually for each channel See diagrams The Stereo Biamp switch is defeated whenever the front panel Stereo Mono switch is in the Mono position In this case the Stereo Mono switch overrides the Stereo Biamp switch and the amplifier operates in Mono mode STEREO MONO 70V 100V SWITCH Turn amplifier off before operatin
20. music and 1 3rd power worst case hard clipped music for an amplifier with both channels driven The thermal dissipation specifications indicate how much heat will have to be removed from the amplifier environment under the three different conditions NOISE The GX2300 2600 exceeds all relevant international emissions and immunity standards and has further been specifically designed to minimize interference in Pro Audio environments Regardless of this fact amplifiers consume process and deliver significant amounts of power over a wide frequency range Standard practice calls for caution to be exercised in the placement of signal cables and signal level components such as mic preamps tuners etc to avoid inducing noise in the low level circuitry Possible sources of noise are AC current in shared power lines magnetic interference between adjacent rack mount units high current audio speaker cables In general avoid the following Mounting sensitive signal processing equipment directly above or below amplifiers Sharing AC power outlets between amplifiers and signal processing equipment Bundling signal cables with speaker cables or AC power cords A AC LINE Connect the unit to a properly rated supply circuit The GX2300 2600 can be configured to operate within the following AC mains voltage ranges 100 140VAC 50 60Hz 115 60Hz typ 200 260VAC 50 60Hz 230VAC 5 2 typ Connection is made by 14 gauge IEC type 320 gr
21. not be objectionable However if the nominal speaker impedance is significantly lower than the Load Switch setting excessive clip limiting can result accompa nied by continuous or prolonged illumination of the protect LED In this situation the Load Switch should be changed to a lower value until the protect events are eliminated or occur infrequently See Load Switch paragraph 17 LOAD SWITCH The Load Switch located on the front panel allows the amplifier power supply to be matched to the speaker load for more efficient cooler running operation This unique feature of the GX2300 2600 allows each channel to be configured for 20 4Q 8Q or 7 100V mono operation also 70V Dual Mono GX2600 only The power output and thermal performance of the amplifier remains consistent with all the possible combinations of the loads listed In Stereo or Biamp mode the Load switches can be configured independently and each channel will deliver the same consistent output power and thermal performance regardless of how the other channel is configured Use the fol lowing guide when selecting the Load Switch setting Nominal Speaker Impedance Load Switch Setting 50 80 or higher 30 50 40 20 30 or lower 20 If the Protect LED is illuminated for prolonged periods during normal operation select the next lower value Load Switch setting Continue until the Protect LED ceases to illuminate or lights infrequently This s
22. 023 025 024 c94 SFH9154 SFHOISE SFH9154 100uf 25V 2 2 oSs L 4 4 4 4 4 1 eee 7 DC RAIL 53 4 TLO72SM 15F CTOWN 15F 0 DC RAIL 53 415F VV 0834 V 14 cen CR30 ha MMBTAS6L 828 85 MMBTAOGL 555 62 55 ROL e iv A p N iu Nit CR43 MPSAO6 092 8355 22 4 5 35V R162 9 ace 100K wor R332 MMBTAOGL A WBT3906L 200K e 1 167 150pF 50V 5 5 C99 220pF 50v 2 R335 T X NOT USED ON 2300 MODELS ok 0100 SR2300 VALUES IN PARENTHESIS MMBTASSL CR42 565 052 upsA5 855 4 t 4 75 057 3 R221 MNBTASEL OUT 2N5550 ES 2285 228 CR31 CR36 fe DC RAIL 53 R299 MMBT3904L uPD 2 9 5906 31 C600_maualB sch 1 PROTECTION 044 MMBT3906L 15V DC RAIL 53 gt MMBT3906L RO si RMS PROTECTION RISI 100K 015 016 017 71 5K 13 0K nu T 2 D 1 R127 Usa ANN 2 32 4K TL072SM 30 1K 555 8190 MMBT3906L nse ie A R114 gt 2 043 BCE 8 8 825 R149 R161 CR25 CR29 14 10 0 10 0 55 4 15V RNB 10 0K C139 0 047uF 50v 50V RI 10 0K R308 100K R310 15V 2 LM393 sig N Se gt 8
23. 24 ne Daley Passe Inverter S st taas hp pata EA EUREN OE e E ee EN A ee nee 25 SCHEMATIC DIAGRAMS 22 are ts de licia ees ee 26 cu Salsa la Sa a e Decr RIM anda 26 ENTER N na ea ERI gt 27 55 ene SOL UE INT HG TEE REET a WOHNT YR NO QE EC St TE or 28 Time Dela Phase he ek ee CEs a PES deu ste Ss OE KS ene 29 AMPIO ee ET dei ds ace eer Ma EN hae t e 30 Protection ny ii dus pc 32 High Voltage Control vna Mama pce e Rd VARY Whe lh a ee bl Se A 34 Housekeeping Control LIRE 36 38 POWER Aa a SAMO STAND AE ed a le etie fo ur 40 Declaration of Conformity Application of Council Directive 73 23 EEC low voltage directive Application of Council Directive 89 336 EEC Directive Standard s to which Conformity is Declared EN55103 1 Emissions EN55103 2 Immunity EN60065 Safety Manufacturers Name Hafler Manufacturers Address 546 South Rockford Drive Tempe Arizona 85281
24. 50V 7 4 DC 53 A ANN ANN 200 49 9K IN M 69 8K J19 J18 q AN NAN NA 8812 TOO MMA Cie 5 412 49 9K 2 37K 5 5 1V 20 0 68 8 4 75k LHSSBAM 8 OHM 5 A DC 53 B Coni 2 lt Vreg R22 0168 E CR E 0 01uF 50V CR68 330pF 50V 10 0K c169 PEA 0 01uF 50V 0 0tuF 50V Lens O 0 015uF 50V ni 4 D CT 15PWM ue zz 14 SYNCX gt a VW la MMBTAOSL 4 99K MMBTAOGL R284 100 SB 4 R14 NVV a lt 4 99K MMBTAOGL 5 ES 25 5 ES 8 amp XX X 34 J7 c34 504 25 Sum 100uf 25V 1 15 13 9 55 2480 R34 c21 ANN E A ucs425N O O 1 5 o o1sur sov 499 44 50V OUT_B m T3A TT 2004 C Co 12 8 PGND 10 3 CRS n DUT_A 16 9 gt VREF ILIM SD 4 R42 ss RAMP HZ ANN A 1 00K CRE CR7 8 3 6 10 5 259 xg S X ed E 5 gt a 32 2388 233 e gt 52 T 0 022uF 50V ei cbr RIE C35 Sx 2 M 5 28 ese 4 OHM 2 OHM 8 DI 4 4 4 4 100pF 50V LI 04 MMBTAO6L R40 MA ANN as 4 99K N MMBTAO6L R38 12 MN 4 99K EN MMBTAO6L lt x oS z 5 ES 5 GX 2300 VALUES IN PARENTHESIS 1
25. 9 O7 so 40 REN TUA o 5 ux EN o DIA 1 Connect signal from source to both CH A and 5 Connect appropriate speaker load 80 40 20 to 5 way inputs binding posts 2 Move Stereo Biamp switch to Stereo input mode 6 Adjust CH A amp CH B level controls independently 3 Move Stereo Mono switch to Stereo mode 4 Select desired speaker load 80 40 20 for each channel CH A amp B loads do not need to match BIAMP MODE GX2300 GX2600 8848 1 Connect signal from source to input 5 Connect appropriate speaker load 80 40 20 to 5 way 2 Move Stereo Biamp switch to BIAMP input mode binding posts 3 Move Stereo Mono switch to Stereo mode 6 Adjust CH A amp CH B level controls independently 4 Select desired speaker load 80 40 20 for each channel CH A and CH B loads do not need to match 19 BRIDGE MONO MODE GX2300 GX2600 da a 2 O O B BS M AEN SS OR 160 80 40 Connect signal from source to CH B inpu
26. CA dy e tn 12 Power Thermal Nata Re BEE ED ICE N san 12 NO RP DREI TE RE IO PIETER SION das TITO 12 AG LING a SS VS AA Dans SE Gea e dr Ee dI ENVIAR An 12 Audio Gro nd Chassis Float Switch sc 242 222 orari lari a til au i RA Me 13 ie cya th ass ss PUEDE 13 Power SWILCH A ee RO RR IRE 13 OPERATION 7 nette ads ELE a A I a OE O a A ORI gs Sida RAI 14 22 254 ud o b des dd ee a is mien ee 14 Earth Grounded Spice EQUIPO ee A De ee ee Waage 14 Source AAA A A A 15 Delay A A RD dU bo RARE DANG La LR SS A 16 CLE Hori Equalization Cds ADA Ad y re SUE Rae d ehe AE A ae la 16 CrOSSDVBI um ehe vi Dd AD I iE MN UL TO MUR A LP Sed IA 16 EN debe qns ilaria a eee A i baldi 16 A ER 16 LeveliControls u ads eS i i di RR MIU RN QE Unos Rense 17 SI DO BIO SEIN das e COLL 17 Stereo Mono 7 OV 100V SWit h sita ses ne d kt a OE SAT Sante TA peels UU ROERO 17 Pr
27. ED 771 10uF 16V gt C132 sov a x ADD FOR R201 FAN CONTROL 21 zs 3 TURN ON TO FAN 1009 2 Y R212 hid FAN BLAST 87 gt BLACK R171 150K 5 tuF 50V we xe 47 5K 10uF 16V 1 1 a sos ADD FOR SLOW START PROTECT 15V CR45 BY PROTLED gt pH gt V 15V R180 POWER ON OFF R277 SE 6 8K THERMAL 2 47 5K MMBT3906L 8172 CRAB 7 aep 10 0K C121 6 8K cr gt 3 32M 4 75K O tuF 50V 08 R358 c131 68pF sov Ne 8275 QU CR55 ha RED 100 R265 R266 R 0 047uF 50V sak fel 100K b 1 3395 SS Let CLIP 2 HSV i T FROM CLIP 28 MMBT3904L 6 8K J RON O LM339SM 298 20 06 CR51 Bar Y 10 0K R273 be Di SIGNAL 4 4 3 32M R260 8276 61 9K sici gt R252 LO TEMP R253 8 gt FROM OUTPUT 100k 8 278 3904 PEN SIGNAL Pt 225 3395 LD THERMAL SE as x PI LM339SM SIGNAL 47uF 16V CR44 ese MMBZ5231BL gor THERMAL 20 0K 10 0K 4 4 cay C149 C159 O luF 50V o tuF 50v 4 uE 1000pF 100V 30 15F gt C62 a
28. EO ADD FOR 4 3 Ux RIBBON 328 10 0K GR MODELS T 29 pm d es Man 4 ANDY SITL BYPASS 15 O I 1 2 X7 O X7 i NV 1 8345 R349 ES 2 3 92K STEREO 4 lt d 4 151 a 3 5 7f 5 5 5 m AN La pi EE BER 4 ES 1 1 iu SIGNAL IN 8 SIG V FROM CHB 1 5 C600_maualB sch 8 39 POWER 354DC HI 4 4 1 c147 1000pf 1KV 23 IZ m m x x N CHGND zt 338 777 R72 le 94 R59 an ANN IRFP360LC 2_NN IRFP360LC 49 9 49 9 T3E eS E 2 1 2004 0 ETF EN 220pt 1KV TT 2004 C 6 9 l 2785 5 T2B os aH 2601 8 TT 2600 B T2A e 2601 8 TT 2600 B Ae gt 258 323 822 ES ess ni ux 49 9 R71 013 R63 012 4 ANN IRFP360LC ANN IRFP360LC 2 49 9 x T30 ESS T3C z TT 2004 C C59 TT 2004 C 2 lt 5 C58 7 220pf 1KV 4 220pf 1KV 35406 10 4 C148 1000pf 1KV CHGND 177 40 0176 R29 1KV TT 2602 B 1 3K 1W
29. Hafler ES t C116 Ca rc GX 2300 GX 2300CE GX 2600 GX 2600CE AUT Hafler um 1 Pe AUTE LS TEE pe Hafler MN 515 E 3 TONES M KI IMI Owner s Manual Table of Contents DECLARATION OF CONFORMITY lt cei Se Ra wo i alia e a ee due 2 SAFETY INFORMATION mr ta da a 3 SPECIFIEATIONS d ds IL ALI Aa lol a e nie ei iii dii dle wr 8 INTRODUCTION fex faggi diede citer etur RESPON EI ERA e Pee ee enue EEE 9 TECHNICAL DESIGN FEATURES lt 2515s ce te y a deine Le baia 9 Why np gt dast ess ak 9 th s ampliati lt gt aves a oo eee SUE A A 10 Universal Line Voltage ae ee ee a ae a e Eun d AA AI NA qd Ud 10 Protection sr zac alia Ben ia la a o foestede dci Up paste 10 DESIGN FEATURES 2 32 aan a id Lalla da Mae dan ee 11 INSTALLATION isla a ei nie dis ir pri ii ruta Lei pi 12 Cooling 3 4 Se SRI YE OE BE OE VERS Sh SEG aper eu M
30. Ot ct A Ex Cu AN ONE 17 Load SWiteh sa ee t s ag AURA fe ale cesis ai gite ome aa vn Pl farce dus e noe A 18 Ta pr RITI ERI tiefe e mec are en RE de DIE Ed RA RI 18 CUBES ren a ete UE USO LIE OY Sa are S EQ VA TU tea 18 couv de Rud ets Lo Leo s a eto NOR teste e S orte Loro d E cu oti Did Ne d D ie dre trasera Se sale 18 WIRING DIAGRAMS 2 22 GG 2 200 See A e I BE EEE rv AA ee ARA ee 19 Stereo Mode os sant ins ass Lege ted Ns a RS 19 Biamp raros de GH RHR ETT ee ERROR ood Seas 19 Bridge Mone Melle as ecu as a pe a duda xa b ERG ews g Y pude Rs 20 70VMono Mode esso A E Ln Dd vu Wes ME tue 20 100V Mono Modest ty Li dii vd bn de tali Lin Die eo NOTES ot Md Pd i ro file has 21 ZON ia De on ble Re 21 SERVICE POLICY AND LIMITED WARRANTY oi ee ee de dea Dee ee i hen RIDE MIT ee 22 PEBOARD LAYOUTS eio do a rear RRA e CE a ja UE gr aie Ege baia 23 a a Ru mad Be DEREN ba 24 Crossover C DiEQ gt soi soda TELI REI e SAG MR A A qu IRAN REMANET Eo I
31. S lo ONLY O C143 JW6A2G Y c123 15VCC h 10125 Ress 0 47u1 50v 10pF 50v FGND JWGA2H RENE our 50v CHGND NT 2 1 Rago 200 8305 V 177 1 00K 2 AAA JW6A2I S5 8 2 110725 22 R278 7 68 7 Sa mE dU lt FGND XLR MALE XLR COMBO 270pF 50V B 36424 JW3 gt 1 2 ADD JW8 JW3 T4 FOR SR MODELS A TLO72SM ONLY 0 47uf 50V 2 FGND R294 2 25 7 58K o FGND T ANN 2 5 1 00K 6 ANN JW6A2B R 2o gt 10725 C144 lt gt L4 JWBA2C lt 9 0128 2428 3 270pF 50V 10pF 50V JW6A20 JW6A2E FGND JW6A2F 6 TAPA BYPASS V 38 DELETE FOR R295 OUT CX MODELS 22 100K 2 R351 N M bel VAVAVA 44 18 16 1418 255 0 81121573 js 2173 1211 358 5 4185 St a Y 4 wo 15VCC 7 57 NA FGND al BYPASS FGND O svee 1308 R303 de ODELETE R303 FOR I ADD FOR GR MODELS SR MODELS ONLY i ADD FOR ONLY 5 25 8352 SR MODELS ADD P3 FOR 6 110725 0 T 1 BMP ONLY 27 MES pie LW6A20 5 3 gt 7 AAA 2 4 NES 8298 5K LIN ONES 5K LIN 4 FUND 09442 6 10 47uf 50V 0 47uf 50V ars STER
32. The positive output red terminals are oriented such that a dual banana plug can be used for bridged mono operation A POWER SWITCH The power switch is located on the front of the amplifier Two green Power LEDs indicate that the corresponding amplifier channel is turned on Standard practice is to turn the amplifier on last and off first when powering your system on and off This insures that any turn on off glitches in source components or signal processing equipment will occur before the ampli fier is turned on or after it is turned off It is possible to leave the power switch on at all times and switch the amplifier remotely with a breaker switch or other AC power switch When doing so make sure the switch is rated for the current required by the amplifier 13 i Operation The amplifier will operate with either a balanced or unbalanced signal source INPUT The input jacks used on the GX2300 2600 are dual function connectors which accept 1 4 TRS Ring Sleeve or male XLR plugs The amplifier will operate with either balanced unbalanced signal from earth ground or floated source equipment To determine if your equipment is earth grounded or floated consult the owner s manual or test with an ohm meter The signal connections are as follows XLR Balanced 1 4 TRS Balanced 1 4 Mono Unbalanced 2 4 sleeve shorts amplifier Ring Sleeve Tip Sleeve input to audio groun
33. ctor e The Audio Ground of each GX2300 GX2600 is permanently connected to the black terminals of both output binding posts to pin 1 of each XLR input and to the sleeve of each 1 4 input e The XLR shell is permanently connected to chassis e With the Chassis Float switch in the Chassis position the Audio Ground will be connected to the Chassis and AC mains earth ground This connection is made through a 0Q resistor R350 located on the input board The resistor serves as a fuselink in the case of severe system faults To check this resistor remove all connectors from the amplifier and discon nect the AC main plug With the switch in the Chassis position use an ohmmeter to measure the resistance between the earth ground pin of the AC mains plug and Audio Ground at either black terminal of the output binding posts e By selecting the Float position the Audio Ground is not directly connected to the chassis and can be referenced to some other ground through the input cable or speaker ground For safety reasons a O 1uF capacitor C125 permanently connects Audio Ground and chassis C125 is located on the input board The 0 1pF capacitor couples Audio Ground to chassis at RF frequencies but only presents approximately 27kQ of impedance at 60Hz OUTPUT The speaker output connectors are dual binding posts which will accept wire up to 12 AWG or spade connectors They are spaced on 3 4 centers for use with dual banana plugs
34. d Proper cable wiring will be determined by the source equipment that is feeding signal to the amplifier EARTH GROUNDED SOURCE EQUIPMENT Source units with a 3 pin mains power cord will typically have the audio output ground connected to the earth grounded chassis This can be verified with an ohmmeter by disconnecting the mains power cord from the AC outlet and checking for continuity between the earth ground pin and the audio output ground This test should be done with the equipment installed in the complete system including cables If the audio output ground is connected to the earth ground pin it is earth grounded equipment Consult the following diagrams for examples of recommended wiring techniques XLR 1 4 TRS Amplifier GROUNDED 2 BALANCED SHIELDED TWISTED PAIR SOURCE udio Ground 1 shield connected at end only Shield F Chassis GROUNDED XLR 1 4 TRS Amplifier UNBALANCED SHIELDED TWISTED PAIR SOURCE m Ground shield connected at one end only Shield Chassis 14 XLR 1 4 Mono Amplifier GROUNDED 2 UNBALANCED COAX OR TWISTED PAIR SOURCE T m GA Ground Shield Float 1 4 Mono sleeve shorts input to Audio Ground XLR short pins 1 amp 3 together FLOATED SOURCE EQUIPMENT Source units with a 2 pin mains power cord have no means to connect the audio output ground to earth ground so usually the audio output ground is floated from earth ground Ho
35. d A V for each condition of the signal The output voltage and current capability are each potentially doubled and the power potentially quadrupled without having to increase the rail voltages fed to the devices One or more patents are expected from this technology WHAT ELSE DISTINGUISHES THESE AMPLIFIERS Constant power into varying impedance It takes twice as much current to develop given wattage into 20 it does into 8Q but only half the voltage Many amplifiers quote high output current at 2Q but have unpublished operating time measured in handful of seconds before thermal shutdown hopefully precludes thermal meltdown Our solution for this is selectable rail voltages for optimizing the amplifier to the load This is impractical for conventional line frequency supplies and it comes at a cost for switching supplies A full PWM design is needed adding a coupled out put inductor a current sense transformer and a current mode controller IC impedance selector switch is also needed for each channel simultaneously altering the rail voltage and the current limit Each channel of the amplifier can be inde pendently optimized for 20 4Q and 80 useful in bi amping and tri amping etc Both 70 and 100 volt constant voltage line operation are possible A chart on the back of the amplifier explain the various options UNIVERSAL LINE VOLTAGE INPUT Voltage selection is provided in two bands 100 140 volts and 200 260 v
36. e OFF there will be no output signal The delay feature provides five sections of 2nd order all pass delay filters of 450usec 10usec each Unlike the more commonly used 1st order all pass the 2nd order filters achieve a constant delay time over the usable frequency range of 1Hz to 1kHz At frequencies higher than 1kHZ the gain remains flat while the delay time gradually decreases to zero The delay time is labeled in inches of delay i e 450usec section X 1130ft sec X 12 inches ft 6 inches section If there is uncertainty about the amount of delay needed choose the 0 switch CD HORN EQUALIZATION This adjustable high frequency shelving circuit can be used to compensate for the roll off of constant directivity CD horns At the 10dB setting the gain increases with frequency to about 3dB at 3kHz and finally to 12dB at 20kHz 14 10dB 10 Frequency CROSSOVER A 3 position slide switch selects the High Pass HP Low Pass LP or Full Range Full configuration of the 4th order crossover FREQUENCY The crossover frequency can be selected as either 500Hz or 800Hz PHASE The Phase switch will select either 0 normal polarity or 180 inverted polarity for the corresponding output signal 16 LEVEL CONTROLS The gain for each channel can be controlled individually using the front panel level control The controls have 32 detented positions that are calibrated in
37. el Der Blitz mit dem Pfeil in einem gleihschenkligen Dreieck soll den benutzer vor unisolierter gef hrlicher Spannung innerhalb des Ger tes warnen Das Ausrufezeichen in einem gleichschenkligen Dreieck soll den Benutzer darauf aufmerksam machen dab dem Ger t wichtige Operations und Service Informationen beigef gt sind benutzen achten Sie darauf das dies die erforderlichen Str me bertragen k nnen Benutzen Sie immer dreiadrige Verl ngerungskable 11 ZEITR UME IN DENE DAS GER T NICHT GENUTZT WIRD Wird das Ger t ber einen l ngeren Zeitraum nicht genutzt z B Urlaub ziehen Sie bitten den Netzstecker aus der Steckdose 12 REINIGEN Reinigen Sie das Ger t nur wie in der Bedienungsanleitung detailliert beschrieben 13 EINDRINGEN VON FREMDK RPERN Achten Sie darauf dab weder Fremdk rper noch Fl ssigkeiten in das Ger t eindringen 14 ERFORDERLICHER REPARATURSERVICE Hafler Equipment sollte nur von qualifizierten Service Technikern instand gesetzt werden wenn A Das Stromversorgungskabel besch digt wurde B Eine Fl ssigkeit in das Ger t eingedrimgem ist C Das Ger t Regen ausgesetzt wurde D Das Ger t nicht mehr ordnungsgem b funktioniert ggf nicht mehr die volle Leistung abgibt E Das Ger t runtergefallen ist oder das Geh use besch digt wurde 15 SERVIGE Der Benutzer sollte nur den Service ausf hren der in der Bedienungsanleitung f r den Benutzer freigegeben wird Den
38. el Amplifier will clip at 70Vrms level 20 100V MONO MODE GX2300 GX2600 29 TOE 1 a 100V 70V 8 4Q 100V 70V 29 40 20 E n GX2300 6 GX2600 al 100 Volt ransformer 100 Volt Transformer Parallel Array 5 Connect parallel array of 100V transformer equipped speakers across the red terminals of the 5 way binding posts 1200W 2600 600W GX2300 6 CH B input sensitivity controls 100V mono output level Amplifier will clip at 100Vrms level 1 Connect signal from source to CH B input 2 Stereo Biamp switch not active Stereo Mono switch overrides this switch when in mono 70V 100V mode 3 Move Stereo Mono switch to 100V mode 4 Select 100V load both channels 70 STEREO MODE GX2600 ONLY 100 70V 49 20 L 1 GX2600 70 Volt Transformer 70 Volt Transformer MAN Parallel Array 70 Volt Transformer 70 Volt Transformer I VIN Parallel Array 5 Connect parallel array of 70V transformer equi
39. emove the heat produced during normal operation Free air flow at the mounting location is critical factor in accomplishing long term reliable operation of the amplifier The internal fans of the amplifier pull in fresh cool air from the rear panel and force the heated air out the front panel This air flow must be as open and free of obstructions as possible Also take care to exhaust the heated air away from the front panel intakes so as not to recirculate and reheat the same air over and over again In rack system make sure there is significant source of fresh air to the rack This can be achieved with air conditioning vents to the top of the rack an open back that is well venti lated or rack panel fans vents In the case of rack panel fans vents the cooling will be most effective when the amplifier s are located as far away from the fans vents as possible to prevent air recirculation i e amplifiers at the bottom fans vents at top or vice versa When installing equipment in a rack take care that the weight is distributed evenly Hazardous conditions may be created by uneven weight distribution POWER THERMAL REQUIREMENTS For your convenience in planning for sufficient power and cooling in the amplifier environment we have included AC mains current draw and thermal dissipation values in the Specifications Sheet The specifications listed are for idle no sig nal 1 gth power normal operating conditions for continuous voice or
40. exclamation point within an equilateral triangle is intended to alert the user of the presence of important operating and maintenance servicing instructions in the literature accompa nying the appliance provide the same three wire grounded connection It is impor tant that the blades of the equipment plug be able to fully insert into the mating receptacle Never remove the round grounding pin on the plug in an attempt to mate to a two wire ungrounded receptacle use a grounding adapter with the grounding tab or wire suitably connected to earth ground 11 NON USE PERIODS During periods of extended non use the power cord should be unplugged from the power source 12 CLEANING The equipment should be cleaned only as detailed in the oper ating instructions 13 OBJECT AND LIQUID ENTRY Care should be taken so that objects and or liquids such as cleaning fluids or beverages are not spilled into the enclosure of the equipment 14 DAMAGE REQUIRING SERVICE Hafler equipment should be serviced by qualified service per sonnel when A The power supply cord or plug has been damaged B Objects have fallen onto or liquid has been spilled into the equipment or C The equipment has been exposed to rain or D The equipment does not appear to operate normally or exhibits a marked change in performance or E The equipment has been dropped or the enclosure has been damaged 15 SERVICING The user should not attempt to se
41. fler deben ser llevados a servicio por personal calificado cuando A El cable de corriente el enchufe haya sido da ado B Objetos l quido hayan sido introducidos derramado en el equipo 6 C El equipo haya sido expuesto a lluvia 6 D El equipo aparenta no operar normalmente exhibe un marcado cambio en su desempe o 6 E El equipo se ha ca do o el chassis ha sido golpeado 15 SERVICIO El usuario no deber intentar darle servicio al equipo m s all de lo que est descrito en el instructivo de operaci n Todo lo dem s deber ser referido a servicio por personal calificado 16 CARRETILLAS Y SOPORTES El equipo podr ser usado con carretillas y soportes que ten gan la fortaleza y estabilidad suficiente para el uso previsto La combinaci n equipo carretilla deber ser movida con cuida do R pidas paradas y arranques excesiva fuerza y superficies imparejas pueden causar el volcamiento del conjunto de car retilla equipo 4 ACHTUNG WICHTIGE SICHERHEITS INFORMATIONEN ACHTUNG GEFAHR EINES ELEKTRISCHEN SCHLAGS NICHT OFFNEN WARNUNG Um die gefahr eines elektroschocks oder feuer zu 1 INSTRUKTIONEN LESEN Alle Sicherheits und Operationshinweise Ihres Hafler Equipments sollten vor der Inbetriebnahme gelesen werden 2 BETRIEBSANLEITUNG AUFBEWAHREN Bewahren Sie die Bedienungsanleitung sorgf ltig auf damit Sie in dieser auch in Zukunft nachschlagen k nnen 3 WARNUNGEN BEACHTEN Al
42. g this switch This switch will override the Stereo Biamp switch This Stereo Mono 70V 100V switch is located on the front panel and selects either Stereo mode 2 input signals and 2 output signals Mono 70 100 mode 1 input signal and 1 bridged output signal Mono mode uses the CH B input connector and level control only The output load should be connected across the red ter minals of the output connectors Set both load switches equal to 1 2 the load value For example after connecting 4Q load across the red terminals set both load switches to 2Q The rated power into the mono load will be double the rating for a stereo load See diagram 70V and 100V Mono mode also use the CH B input connector and level control only The 70V or 100V speaker array load should be connected across the red terminals of the output connectors Set both load switches to the appropriate 70 or 100V value The rated power into the mono load will be double the rating for a stereo load See diagram PROTECT The red Protect LED on the front panel indicates that the NOMAD protection circuit has been activated and is limiting the output power of the amplifier This indicates that during the Protect event the NOMAD circuit detected a speaker load that was temporarily significantly lower than the value selected with the load switch Typically it may only occur when a transient signal corresponds to a dip in the speakers impedance curve and will
43. ients by a circuit that monitors the power supply and controls the amplifier when power on off events are detected At turn on this circuit waits for power supply voltages to settle then sends a turn on ramp signal to slowly turn the amplifier on At turn off this circuit acts quickly to turn off the amplifier before power supply capacitors discharge and voltages collapse into the output signal causing speaker pops 10 Design Features Features O O o IM sm emu 05 pa NN IL NT SD Crossover Full BIAMP STEREO Hi GN m Crossover LP Full CD EQ 0 34 10 Freq _500Hz IN Mono a 5 15 6 Recessed Front Panel Prevents switches controls from acci dentally being adjusted or broken Power Switch Turns the amplifier ON and OFF Power LEDs Verifies that the amplifier channel is Status LEDs Displays the status of the amplifier The LEDs as follows SIGNAL indicates if signal is present CLIP illuminates if
44. le Warnungen des Ger tes und der Bedienungsanleitung sind extrem wichtig und m ssen befolgt werden 4 INSTRUKTIONEN BEACHTEN Alle Operations und Gebrauchshinweise sind extrem wichtig und m ssen beachtet werden 5 HITZE Das Equipment sollte fern von Hitze ausstrahlenden Ger ten aufgestellt werden wie z B Heizungen fen etc 6 VENTILATION Das Equipment sollte so aufgestellt werden dab eine ausre ichende Ventialition gew hrt wird 7 WASSER UND FEUCHTIGKEIT Das Equipment sollte nicht im oder in der N he von Wasser benutzt werden wie z B in Schwimmb dem Saunen etc Es sollte ebenfalls nicht in berschw mmungsgef hrdeten Gebieten aufgestellt werden wie z B Kellerr umen 8 STROMANSCHLUb Das Equipment darf nur an eine Stromversorgung angeschlossen werden die die gleichen Parameter aufweist welche auf der R ckseite ber em Anschlubterminal des Ger tes aufgelistet sind 9 SCHUTZ DER ZULEITUNG Die Zuletungen sollten so verlegt werden dab diese nicht in den Bewegungsbereich anderer M belst cke oder Personen hereinragen Achten Sie darauf das das Kabel nicht gequestscht oder durchschnittren wird wie z B unter Schr nken oder an scharfen Kanten etc 10 MASSEANSCHLUb Das dreiadrige Anschlubkabel ist mit einem Erdungsleiter aus gestattet welcher die Risiken eines Elektroschocks verringert Das Kabel hat eine L nge welche f r die meisten Anwendungen v llig ausreicht Wenn Sie Verl ngerungskab
45. nvers terre ou l enceinte a t endommag e 15 REVISION L utilisateur ne devrait pas essayer de r viser le mat riel en allant plus loin que ce qui a t d crit dans le mode d emploi Toute autre r viion devrait tre confi e un personnel qualifi 16 CHARRIOTS ET MEUBLES Le mat riel devriat tre utilis avec des charriots et meubles de qualit et stabilit suffisante son utilisation pr con ue L ensemble du mat riel et du charriot devrait tre d plac avec pr caution Des mises en marche et arr ts brusques des colli sions excessives ainsi que des surfaces in gales peuvent ren verser l ensemble du mat riel et du charriot NOTARE IMPORTANTI INFORMAZIONI SULLA SICUREZZA ATTENZION ATTENZIONE RISCHIO DE SCARICHE ELETTRICHE NON APRIRE ATTENZIONE Per prevenire incendio scariche elettriche non esporre auesto annarato a ninnaia umidit 1 LEGGETE LE ISTRUZIONI Tutte le istruzioni riguardanti la sicurezza ed il funzionamento devono essere lette prima di applicare tensione all apparato 2 CONSERVATE IL MANUALE Queste istruzioni riguardanti la sicurezza ed il funzionamento devono essere conservate come riferimento futuro 3 AVVERTENZE Tutte le avvertenze poste sull apparato e sul libretto di istruzioni sono importanti e devono essere seguite 4 SEGUIRE LE ISTRUZIONI Tuttle le istruzioni operative e di funzionamento devono essere seguite 5 TEMPERATURA L appara
46. olts both 50 60 Hz via two quick connect termi nals located on the EMI filter board accessed by removing the top cover The current mode control system automatically corrects for the bulk of power line variation with each band This allows most of the PWM action to be reserved for pro gramming and regulation of output voltages A flyback topology provides the numerous housekeeping low voltages required by various circuits PROTECTION CIRCUITS Fan control circuit Each amplifier channel has a fan control circuit that measures the temperature of the heatsink and adjusts the fan speed accordingly This thermally tracking fan speed circuit keeps fan noise to a minimum when power demands are low Typically the fans will be turning slowly even at idle conditions although abnormally low room temper atures may allow the fans to turn off completely The fan control circuit also has a turn on blast feature that runs the fans at full speed for a few seconds every time the amplifier is turned on This serves the dual function of cleaning out the air tun nel and providing a simple means to check the fans for proper operation If you suspect that the fans are not operating cor rectly try turning the amplifier off then listening or feeling for the turn on blast when the amplifier is turned back on Thermal Standby If excessive heatsink temperature is detected the individual amplifier channel will go into thermal stand by mode The amplifier will be tu
47. ounded line cord For safety considerations only a properly grounded earthed receptacle should be used If a grounded circuit is not available do not break off the ground pin use the proper adapter plug for a two wire receptacle The AC mains fuse is accessible at the rear panel of the amplifier If this fuse blows replace it only with the same type and rating fuse The correct replacement fuse value is printed on the rear of the amplifier and on the specifications page 12 AUDIO GROUND CHASSIS FLOAT SWITCH In general the Audio Ground of each amplifier should be connected to AC mains earth ground AT ONE POINT ONLY either through the Chassis by selecting the Chassis position OR through the input cable with the switch in the Float position and pin 1 of the XLR or the sleeve of the LVU connected to the ground of the signal source unit The Chassis Float switch can be used as a means to troubleshoot ground loop problems or to verify wiring Ground loops are characterized by a hum or buzz through the speakers and occur when multiple paths exist for a given ground circuit This switch allows the Audio Ground to be temporarily lifted or floated from the chassis so continuity tests can be made to verify or reverse engineer a grounding system The following information will be useful when planning or troubleshoot ing system wiring e The chassis is permanently connected to the earth safety ground pin of the Mains power conne
48. pped speakers up to 600W per channel to 5 way binding posts 6 Adjust CH and level controls independently 1 Connect signal from source to both CH A and CH B inputs 2 Move Stereo Biamp switch to Stereo mode 3 Move Stereo Mono switch to Stereo mode 4 Select 80 speaker load for each channel 21 Service Policy and Limited Warranty Hafler offers a limited warranty on Hafler products on the following terms Length of Warranty 5 years on GX2300 amp GX2600 What is Covered This warranty applies only to products sold to the original owner non transferable This only applies to units sold in the Continental United States You are required to have a copy of the receipt stating the customer s name dealer name prod uct purchased and date of purchase Products found to be defective during the warranty period will be repaired or replaced with product deemed to be equiv alent at Hafler s discretion e What is NOT Covered Damage caused by accident abuse improper operations water theft Service performed by anyone other than Hafler or an Authorized Hafler service center Any product purchased outside the United States please contact your local dealer Shipping charges to get the unit to Hafler Any product which has had the serial number defaced altered or removed DAWN Limit on Implied Warranties Any implied warranties including warranties of fitness for use and merchantability are limi
49. r usado en reas con ventilaci n adecuada Deben er tornadas las precauciones necesarias para no impedir el flujo de aire dentro y alrededor del aparato 7 AGUA Y HUMEDAD El equipo no debe ser usado en el agua alrededor de sta tales como en una ba era tanque o reas de nado Tambi n el equipo no debe ser usado en reas propensas a inunda ciones tales como en un s tano 8 FUENTES DE PODER El equipo debe ser conectado a una fuente de poder del mismo voltaje y frecuencia que el indicado en el panel trasero sobre el punto de entrada del cable de corriente 9 PROTECCION DEL CABLE DE CORRIENTE Los cables de corriente deben ser dispuestos de forma tal que no interfieran con el movimiento de objetos en la sala per sonas aspas de ventilaci n carretillas etc Tambi n es nece sario tener cuidado de que el cable no est punzado o cortado y debe estar ubicado de forma tal que esto no ocurra como podr a suceder debajo de una alfombra o al pasar el cable por una esquina aguda etc 10 ATERRAMIENTO DEL CABLE DE CORRIENTE El cable de corriente es del tipo aterrado de tres hilos dise ado para reducir el riesgo de una descarga el ctrica procendent de El s mbolo de flecha rel mpago dentro de un tri ngulo equi l tero es para alertar al usario de la presencia de voltajes peli grosos no aislados en el interior del aparato los cuales pueden ser de suficiente magnitud para constituir un riesgo de choque el
50. rned off and the THERMAL LED illuminates until heatsink temperatures return to normal At that time the amplifier automatically turns back on and continues operating normally NOMAD protection The amplifier output MOSFETs are protected from excessive power dissipation by NOMAD protec tion circuitry NOMAD Non Multiplying Advance Decision limits the power when it measures signal voltage and current conditions that will exceed the pre determined power limit of the MOSFETs This instantaneous power calculation is per formed on each output MOSFET causing the amplifier to automatically limit power when needed In this way a speaker load with an impedance dip over a particular frequency range will only activate the NOMAD protection when sufficient audio is present at that same frequency range but continue operating normally otherwise Short protection The NOMAD protection circuit also protects against shorts and will instantly limit the output power if speaker wires are shorted together Normal operation will continue immediately after the short is removed Power Supply Current Limiting protection The switching power supply will protect itself from excessive power dissipation by continuously monitoring currents in the switching MOSFETs The Current Limiting circuit measures the currents in the switching MOSFETs and will instantly limit them to a safe level Soft turn on fast turn off Speaker loads are protected from turn on turn off trans
51. rvice the equipment beyond that which is described in the operating instructions All other service should be referred to qualified service personnel 16 CARTS AND STANDS The equipment should be used with carts or stands only of suf ficient strength and stability for the use intended An equipment and cart combination should be moved with care Quick stops and starts excessive force and uneven surfaces may cause the equipment and cart combination to topple ADVERTENCIA INFORMACION DE SEGURIDAD IMPORTANTE PELIGRO RIESGO DE DESCARGA ELECTRICA NO ABRIR PRECAUCIONS Para Prevenir el incendio o la descarga electrica no exponer este equipo a la Iluvia o a la humedad 1 LEA LAS INSTRUCCIONES Todas las instrucciones de seguidad y operaci n de su equipo Hafler deben ser leidas antes de que el equipo sea conectado dl ctricamente 2 CONSERVE EL MANUAL DEL PROPIETARIO Estas instrucciones de seguridad y operaci n deben ser con servadas para futuras referencias 3 CUADROS DE ADVERTENCIAS Todas las advertencias en el equipo y en las instrucciones de operaci n son importantes y deben ser seguidas 4 SIGA LAS INSTRUCCIONES Todas las instrucciones de uso y operaci n son importantes y deben ser seguidas 5 CALOR El equipo debe ser mantenido lejos de areas de alta temperatu ra como por ejemplo ventilaciones de calentadores radi adores estufas hornos hogueras etc 6 VENTILACION El equip debe se
52. t Stereo Biamp switch not active Stereo Mono switch overrides this switch when in mono 70V 100V mode Move Stereo Mono switch to MONO mode 4 Set load switches 80 40 20 to 1 2 the actual load impedance 1660 80 40 i e for 40 speaker load 70V MONO MODE GX2300 GX2600 select the 20 setting for both CH and Load Switches 5 Connect appropriate speaker load 16Q 8Q 4Q across the red terminals of the 5 way binding posts 6 CH B level control adjusts the mono output level 1200W GX2600 600W GX2300 LCN 55 Hafler ri 1111 NAN o os 25 EE Wm ew 6 GX2600 5 70 Volt am 70 Volt 0 n Transformer m etc 1 Connect signal from source to CH B input 2 Stereo Biamp switch not active Stereo Mono switch overrides this switch when in mono 70V 100V mode 3 Move Stereo Mono switch to 70V mode 4 Select 70V load both channels Parallel Array Connect parallel array of 70V transformer equipped speakers across the red terminals of the 5 way binding posts 1200W GX2600 600W GX2300 CH B input sensitivity controls 70V mono output lev
53. ted in duration to the period of the express warranty set forth above Some states do not allow limitations on the length of an implied warranty so this limitation may not apply No person is authorized to assume for Rockford Fosgate any other liability in connection with the sale of the product How to obtain service or technical support Please call 1 800 669 9899 for Rockford Hafler support you may also fax 1 800 398 3985 You must obtain an RA return authorization number to return any products to Hafler You are responsible for shipment of product to Hafler Always include Proof of Purchase Mark RA on outside of shipping carton Rockford Corporation Hafler Division receiving amps 2055 E 5th Street Tempe Arizona 85281 22 jee WOLLOB lt EHO 2 B RS 401 lt WHO i 37692 04 008 3 69 29 y 8314vH 7 RAL RAIL PC BOARD LAYOUTS
54. the amplifier is being overdriven PROTECT illuminates if the amplifier is experiencing a short in the speaker array THER MAL illuminates if the amplifier has shut down due an overheat ing condition Female XLR amp 1 4 TRS Input Jacks Feeds input signal to the amplifier using industry standard male XLR or 1 4 TRS tip ring sleeve plugs Crossover Delay Phase CD EQ Each channel is configurable for typical 2 way speaker systems Stereo Mono Switch This dual purpose switch is used to select the operating mode of the amplifier In Stereo mode the amplifi er can be configured for standard 2 channel stereo operation In Mono mode the amplifier can be configured for Standard Bridge mono 70V mono or 100V mono operation Turn amplifier off before operating this switch Level Controls Adjusts the gain of the amplifier Load Switch Selects the speaker impedance or transformer voltage that will be connected the output binding posts In Standard Mode the 20 40 80 speaker loads Constant Voltage Mode the amplifier can drive an amplifier can drive or array of speakers using 70V or 100V transformers 10 14 15 16 11 250W 250VT7A 115V 9 50 60Hz 13 14 16 Output Binding Posts Connects the speaker array to the ampli fier These jacks allow bare wire spade lugs or dual banana plugs to be connected to the amplifier Internal Fans internal fans keep the amplifier circuitry
55. to deve essere mantenuto lontano da tuttle le zone ad alta temperature termosifoni termoconvettori stufe e forni caminetti ed altro 6 VENTILAZIONE L apparato deve essere posizionato in aree convenienti per una corretta ventilazione Prestare attenzione che sia consentita cir colazione d aria attorno e dentro il cabinet 7 ACQUA E POLVERE L apparato deve essere posizionato lontano da zone contenenti acqua come vasche a bagno acquari e piscine Inoltre non deve essere impiegato in aree soggette ad allagamento come le cantine 8 REQUISITI DI ALIMENTAZIONE L apparato deve essere connesso solo ad un alimentazione della stessa tensione e frequenza di quanto scritto sulla parte posteriore del telaio 9 PROTEZIONE DEL CAVO DI ALIMENTAZIONE Il cavo di alimentazione deve essere posizionato in modo di non interferire con il movimento di oggetti nella stanza per sone ventilatori carrelli ecc prestate attenzione anche che il cavo non sia tagliato o spellato e che non possa tagliarsi e spellarsi 10 MESSA A TERRA Il cavo di alimentazione del tipo a tre fili con terra ed proget tato pr ridurre il rischio di shock elettrici Si presume che sia della lunghezza sufficiente per la maggior parte degli impieghi L impiego di prolunghe e adattatori sconsigliato se questi non garantiscono la potenza sufficiente per i corretto fuinzionamento Il simbolo del fulmine in un triangolo equilatero vuole avvertire della presen
56. troduction The Hafler GX2300 and GX2600 amplifiers are two rack height two channel fan cooled professional power amplifiers suitable for use in the most demanding sound reinforcement and commercial sound installations These amplifiers offer out standing efficiency by means of three technologies high efficiency Class G Trienova amplifiers high frequency switching power supplies and constant power output load impedance selection switches Crossover Time Delay Phase and CD Equalization features make the GX2300 2600 especially useful in 2 way cinema applications Technical Design Features Design Features WHY A NEW AMPLIFIER TOPOLOGY Hafler TRANS nova amplifiers the recording studio reference have a floating power supply for each channel and Nodal drive system covered by U S Patents 4 467 288 and 5 567 000 Our challenge was to convert this topology into a high efficiency design with minimal increase in complexity yielding an amplifier of outstanding audio qualities high effi ciency and unprecedented value Tri e nova is the answer The most common high efficiency Class H methods raise the rail voltages going to the output devices for higher power levels Trienova does not do this Instead it operates by forming a triplet or triplex of tracking signals A A V and A V where A is the raw audio output and are the floating rails The amplifier final output is selected to be at an appropriate voltage between A V an
57. wever this does not insure that when installed in a system the audio output ground will remain floated from earth ground The input cable to this equipment may already be connected to earth ground earlier in the audio chain and it will typically be carried straight through to the output It is also possible that the audio output ground connects to the earth ground through the chassis to an earth grounded rack The only way to know for sure is to test the installed system Use an ohmmeter to check for continuity between the earth ground socket of the mains power receptacle and the audio output ground If the audio output ground is not connected to earth ground it is floated equipment Consult the following diagrams for examples of recommended wiring techniques XLR 1 4 TRS Amplifier 2 FLOATED BALANCED SHIELDED TWISTED PAIR SOURCE Ground shield connected at both ends Chassis FLOATED 2 UNBALANCED SHIELDED TWISTED PAIR SOURCE audis Ground shield connected at both ends Shield Chassis FLOATED XLR 1 4 Mono Amplifier 2 UNBALANCED COAX OR TWISTED PAIR SOURCE t us Ground Shield Chassis 1 4 Mono sleeve shorts input to Audio Ground XLR short pins 1 amp 3 together 15 Crossover LP Delay Full must 2 Phase choose CD EQ 0 cai f only 10 dB N Freg A 00Hz 0 800Hz DELAY One of these switches must be selected If all the switches ar
58. witch can be safely operated while the amplifier is running In 70V or 100V mode the Protect LED indicates there are too many speakers loading the array THERMAL Indicates when the thermal protection has shut down the amplifier After cooling sufficiently the amplifier will automatical ly recover and continue operating CLIPPING Lights up when the output or input signal reaches the maximum allowable voltage and clips the output signal Input clip ping occurs at 3 VRMs sine and can be eliminated by attenuating the signal at the source unit before it reaches the amplifier Output clipping can be eliminated by turning down the amplifier level control To determine whether the signal is clipping at the input or output of the amplifier perform this test Turn the amplifier con trol all the way OFF If the clipping continues this is an indication that the signal is clipping at the amplifier input SIGNAL Monitors the amplifier output and indicates when a signal of at least 1 Vrms is present A number of situations could exist where the input cable is properly connected to the signal source but the Signal LED does not illuminate such as Level control is not high enough to amplify the output signal to 1 Vrms Source signal is off or lower than normal 18 Wiring Diagrams Diagrams STEREO MODE GX2300 GX2600 O 6 O 1 Hafler no 2 ey 400 2
59. za di tensioni elevate non isolate e di valore suffi ciente per costituire rischio di shock elettrico alle persone Il punto esclamativo contentuto in un triangolo equilatero vuole avvertire l utente della presenza di parti di servizio e di manutenzione che sono dettagliate nel manuale di istruzioni degli apparati connessi E alters importante che vengano sempre impiegate prolunghe con la configurazaione a tre fili con terra 11 PERIODI DI NON UTILIZZO Durante lunghi periodi di non utilizzo staccare il cavo di alimen tazione 12 PULIZIA L apparato deve essere pulito solo come indicato dalle istruzioni 13 INGRESSO DI OGGETTI E LIQUIDI Si deve prestar attenzione che oggetti e liquidi come fluidi detergenti e bibite non vengano versati all interno dell apparato 14 RIPARAZIONI Gli apparati Hafler devono essere riparati da personale qualifi cato quando A Il cavo di alimentazione o la spina sono danneggiati B Oggetti sono caduti all interno del telaio o quando del liqui do entrato C Quando l apparato stato esposto a pioggia D Quando l apparato non sempra funzionare normalmente o quando esibisce un cambiamento di prestazioni o E Quando caduto o il telaio stato danneggiato 15 ASSISTENZA L utente non deve tentare di prestare assistenza all apparato se non per quanto esposto nelle istruzioni Tutti gli altri interven ti devono essere effettuati da un tecnico specializzato 16 CARRELLI E STAND
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