Hafler SR2800 User's Manual
Contents
1. 6 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 equil tero es para alertar al usario de la presencia de voltajes peligrosos no aislados en el interior del aparato los cuales pueden ser de suficiente magnitud para constituir un riesgo de choque el 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 importantes de operaci n y mantenimiento servicio en la documentaci n que acompa a al equipo El s mbolo del rel mpago con la punta de flecha que est situado junto a la Y terminal es para alertar al usuario que la terminal presenta un pe2. The CH B level control is used for all Bridged Mono configurations and 100V and 70V modes Except for SR2800 Dual 70V mode ne BIAMP STEREO 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 amono 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 operating 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 70V 100V 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 a 40 load across the red terminals set b
3. Tn ER DIN mn lm el N N N NS NI NN NS NI NS NI NASI NI NS NI PSN PSP NS N I NS N I NS NI R ce Application of Council Directive 73 23 EEC low voltage directive Application of Council Directive 89 336 EEC EMC Directive Standard s to which Conformity is Declared EN55103 1 Emissions EN55103 2 Immunity EN60065 Safety Declaration of Conformity Manufacturers Name Hafler Manufacturer s Address 546 South Rockford Drive Tempe Arizona 85281 Importers Name Importers Address Type of Equipment 2 channel Audio Power Amplifier Model No SR2300CE SR2800CE Serial Number Year of Manufacturing 12000 2001 2002 2003 2004 the undersigned hereby declare that the equipment specified above conforms to the above Directive s and Standard s Place Hafler A 4 Ce Ad A ui ua EB E Date 2 1 2000 James C Strickland VP Engineering ANCONA ASIA OA NS NANNA N Table of Contents of Contents DECLARATION OF CONFORMITY sims lle ea inside cover SAFETY INFORMATION 2 RI 2 SPECIFICATIONS ucraina LR Ra Be e 7 INTRODUCTION 20 ais A Prien IE elena 8 TECHNICAL DESIGN FEATURES 2 22 aida iia a ddan es 8 Wii anew amplie LOPOIOEY ada AA Rieti LR in OR A 8 What else distinguishes these amplifiers 9 Universal LIne Volzse INDI Liana 9 Proteco CICUS 29134 AA A BIETER OU at EA NEIN Grea oad 9
4. 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 ser usado en areas 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 6 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
5. limitation may not apply No person is authorized to assume for Rockford Fosgate any other liability in connection with the sale of the product e How to obtain service or technical support Please call 1 800 669 9899 for Rockford Hafler support 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 2055 E 5th Street Tempe Arizona 85281 Hafler A DIVISION OF 9 ROCKFORD CORPORATION 546 SOUTH ROCKFORD DRIVE TEMPE ARIZONA 85281 U S A IN U S A 480 967 3565 IN CANADA 604 942 1001 IN EUROPE FAX 8503 9340 14 IN JAPAN FAX 81 559 79 01265 MAN 3642 A 5 01 BM Printed in U S A
6. CHB oo oo Channel B Hafler trans n2va gt oo AO fi gt XS N 160 80 40 Connect signal from source to CH B input Biamp Stereo switch not active Stereo Mono switch overrides this switch when in mono 70V 100V mode Move Stereo Mono switch to MONO mode Set load switches 80 40 20 to 1 2 the actual load impedance 160 8Q 4Q i e for a 40 speaker load select the 20 setting for both CH A and CH B Load Switches 70V MONO MODE SR2300 SR2800 N Ds ENO IN BIAMP STEREO OUT 100V 70V 8Q 4Q 20 L E SR2800 rE T7 Audio GNP Chassis Foa MA 250 70 Volt Transformer 70 Volt Transformer Parallel Array Connect signal from source to CH B input Biamp Stereo switch not active Stereo Mono switch overrides this switch when in mono 70V 100V mode Move Stereo Mono switch to 70V mode 4 Select 70V load both channels A Division of Rockford Corp Tempe AZ 85281 O Made in the U S A 250W VTZA 100V 120V 50 60Hz a Single SPEAKON Speaker CE SPEAKON Connector Wiring Speaker back of SPEAKON plug Connect to CH A output 5 Connect appropriate speaker load 16Q 8Q 4Q across the red terminals of the 5 way binding posts CE u
7. 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 following guide when selecting the Load Switch setting Nominal Speaker Impedance Load Switch Setting 50 80 or higher 80 30 50 40 20 30 or lower 20 16 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 switch can be safely operated while the amplifier is running In ZOV 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 To deter mine whether the signal is clipping at the input or the output of the amplifier perform this test Turn the level control all the way OFF If the clipping continues then the signal is clipping at the amplifier input Input clipping occurs at 3Vrms sine and can be eliminated by attenuating the signal before it reaches the amplifier Output clipping can be eliminated by turn ing down the amplifier
8. on turn off transients 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 Design Features SR2300 SR2800 Features SR2300 SR2800 A ww N Recessed Front Panel accidentally being adjusted or broken Power Switch Turns the amplifier ON and OFF Power LEDs Verifies that the amplifier channel is ON Status LEDs Displays the status of the amplifier The LEDs are as follows SIGNAL indicates if signal is present CLIP illuminates if the amplifier is being overdriven PROTECT illuminates if the amplifier is experiencing a short in the speaker array THERMAL illuminates if the amplifier has shut down due an overheating 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 trans 72 va HL EN N En DE EINN LI ND loat J I udig sis Y Fl LI F Q 160 O de For 70V 100V or Mono Use CH B input e Load across RED t Is Set load switches to one Il irin B Prevents switches and controls from Male XLR Daisy Cha
9. riel devrait tre utilis dans un endroit 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 HUMIDITE Le mat riel ne devrait pas tre utilis pres 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 interferer 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 a ce que la prise ne soit pas perc e ou coup e ou dispos e de facon a risquer de l tre comme sous un tapis autour d un angle pointu etc 10 PRISE DE COURANT ATROIS 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 amp 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 a pour objet d alerter l utilisateur de la pr sen
10. 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 BALANCED SHIELDED TWISTED PAIR R SOURCE 7 Ground shield connected at one end only Shield pie Chassis GROUNDED XLR 1 4 TRS Amplifier 2 UNBALANCED SHIELDED TWISTED PAIR SOURCE Audio Ground shield connected at one end only Shield Chassis XLR 1 4 Mono Amplifier GROUNDED 2 UNBALANCED COAX OR TWISTED PAIR SOURCE Aide IT Ground Shield Float 1 4 Mono sleeve shorts input to Audio Ground XLR short pins 1 amp 3 together 14 FLOATED EQUIPMENT 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 However 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 chassi
11. AFETY 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 Hafler 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 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 p
12. DESIGN FEATURES SR2300 SR2800 10 DESIGN FEATURES SR2300CE SR2800CE 11 INSTALLATION 74225 A AAA ne den AR AAA O 12 COCO rta a ais baca as ds ek innata ie de we 12 Power Thermal Requirements sge eariad anaa ia id ala 12 NO LL de ed ie on iter 12 Clo a il ee En Ee D a ee RE Pas o Io ee geh 12 Audio Grotina Chassis Flo at SWIIEN rer sde dl Ialia a a ia 13 OUD sms cita isa adapta li 13 AS E AA PI IR Int 13 ITX5R2900 id a a Aa ed d u ce i Eee aa ae ee do 13 OPERATION sii ida aha lar iii 14 EC RE aa ee ee RESO FOO SAT TORU eg Boe PB ER 14 Dary Cha OMU asssociati 14 Farm Grounded Folipmehts E AR ern ner 14 Hosted EQ IDMENL zn E eee 15 LevellCOnfol sans A AS Rache ei ha ANT tp 15 Biamp S ereasSswitch 7 245 aan ae ne A a ee A Deere 16 Stereo Mono Z0X OOM SWCD sau O AA EIA RARAS re ARA AA ars A 16 POTES AN e RAS RA AS AS DA A A e A 16 OS MAO RS deri 16 WC I re a a ee a aaa 17 CUT Ze Ed UI A ee N IE ne re 17 Se ee re Le A De ee 17 WIRING DIAGRAMS En ee ee ae A EN do st ae ee 18 SICICO MOOG Ara De u be a Ser ee Re 18 Biam p MOOS at ee ha ke eh ee Fe Ge nde na eh GE eee eo rele 18 BASS MONO MIOS 220 ware a o a di TANI STOUT EE 19 TON MONO o PA A alienante 19 LOUV MONO MOUE ses aa a TE AAA DAA AAA AAA A 20 FON SUT CO ANOS sia cid do adn ad id aida 20 SERVICE POLICY AND LIMITED WARRANTY 21 NOTICE IMPORTANT S
13. U 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 321bs 14 51 kg U Introduction The Hafler SR2300 and SR2800 amplifiers are two rack height two channel fan cooled professional power amplifiers suit able 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 TRANS nova Class G circuitry high frequency switch ing power supplies and constant power output load impedance selection switches U Technical Design Features Design Features WHY A NEW AMPLIFIER TOPOLOGY Hafler TRANSenova amplifiers the recording studio reference have a floating power supply for each channel and a novel 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 TRANSenova Class G is that answer The most common high efficiency Class H methods raise the rail voltages going to the output devices for higher power levels TRANSenova Class G 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 v
14. UT SENSITIVITY 0 1dB 10Hz 20kHz 3dB 0 2Hz 100kHz 1 3V 0 9V 0 6V 2 3V 60 0 9V 40 0 6V 20 0 45V MAX INPUT 2 3V SIGNAL TO NOISE CMMR INPUT IMPEDANCE DAMPING FACTOR gt 105dB A weighted gt 75dB at 1kHz 47kQ per phase gt 500 POWER THERMAL REQUIREMENTS both channels driven Idle Condition 55W U version 860MA 115VAC CE version 430mA 230VAC Thermal Dissipation 190 BTU hr gt 105dB A weighted gt 75dB at 1kHz 47kQ per phase gt 500 70W 1 0A 115VAC 500mA 230VAC 240 BTU hr Normal Operating Condition 1 8 rated power pink noise 280W U version 3 5A 115VAC CE version 1 7A 230VAC Thermal Dissipation 680 BTU hr Worst Case 1 3 rated power pink noise 550W U version 6 6A 115VAC CE version 3 3A O 230VAC Thermal Dissipation 1200 BTU hr FUSE U version 115VAC nominal CE version 230VAC nominal 7A 3AG Slo Blo 1 ea T5A 5 x 20mm 1 ea MAINS POWER REQUIREMENTS rated power both channels U version 100 140VAC 50 60Hz CE version 200 265VAC 50 60Hz 570W 5 8A 115VAC 2 9A 230VAC 1330 BTU hr 1150W 12A 115VAC 5 9A 230VAC 2560 BTU hr 15A 3AG Slo Blo 1 ea T6 3A 5 x 20mm 1 ea 100 140VAC 50 60Hz 200 265VAC 50 60Hz Specifications cont Fan a CEE LA MATT a di O protect O O thermal DIMENSIONS 20 3 5H x 19 W x 18 5 D 2
15. V 100V mode 3 Move Stereo Mono switch to 100V mode 4 Select 100V load both channels 70V STEREO MODE SR2800 ONLY EUR AO 77 D uO DICE g a 5 OO Channels N ININ 100V 70V 8Q 4Q 2Q n SR2800 70 Volt ss Transformer Transformer Parallel Array EA 70 Volt 70 Volt Transformer Transformer 1 Connect signal from source to both CH A and CH B inputs 2 Move Biamp Stereo switch to Stereo mode 3 Move Stereo Mono switch to Stereo mode 4 Select 8Q speaker load for each channel Single SPEAKON Speaker CE SPEAKON Connector Wiring Speaker back of SPEAKON plug Connect to CH A output 5 Connect parallel array of 100V transformer equipped speakers across the red terminals of the 5 way binding posts 1400W SR2800 700W SR2300 CE units Wire SPEAKON as shown above and connect to CH A output 6 CH B input sensitivity controls 100V mono output level Amplifier will clip at 100Vrms level Dual SPEAKONs CHB CE SPEAKON Connector Wiring CHB 99 back of SPEAKON plug etc BE 5 Connect parallel array of 70V transformer equipped speakers up to 7OOW per channel to 5 way binding posts CE units Connect as shown above for Dual SPEAKONSs or Si
16. are 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 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 sb U Specifications All measurements taken at Normal Operating Conditions i e 1 8th rated output power unless noted otherwise POWER OUTPUT Stereo 80 40 20 70V Bridged 80 Bridged 40 Bridged 70V Bridged 100V 1kHz 1 THD 350W x 2 CH 350W x 2 CH 350W x 2 CH 700W x 1 CH 700W x 1 CH 700W x 1 CH 700W x 1 CH 20 20kHz 0 2 THD 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 1kHz 1 THD 700W x 2 CH 700W x 2 CH 700W x 2 CH 700W x 2 CH 1400W x 1 CH 1400W x 1 CH 1400W x 1 CH 1400W x 1 CH 20 20kHz 0 2 THD 600W x 2 CH 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 FREQUENCY RESPONSE 0 1dB 10Hz 20kHz 3dB 0 2Hz 100kHz INP
17. ce d un voltage dangereux non isol a l int rieur du produit qui pourrait tre de magnitude suffisante au risque d l ctrocu tion Le point d exclamation l int riur d un triangle quilat ral pour objet de pr venir l u tilisateur de l importance des instructions de fonctionement et de maintenance jointes l appareil Le symbol compos d une fl che en forme d clair adjacent au terminal vise a alerter l utilisateur que le terminal pr sente un danger lorsqu il est sous tension 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 fonctionnement 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 f 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 liq
18. ce 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 0 1uF capacitor C125 permanently connects Audio Ground to chassis at RF frequencies but only presents 27kQ of impedance at 60Hz ZA 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 The positive output red terminals are oriented such that a dual banana plug can be used for bridged mono operation 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 A THX SR2800 The SR2800 is THX approved onl
19. cha LJ trans ova gt 00V 70V Q 42 20 O cHB sr 2 3 O O 600 watt professional amplifier EA Se y al ES PHI N O Ml ar OM Sax A IN BIAMP STEREO OUT wl N ES u 7 TUI yar switches to one ce half load impedance TS JONS 80 40 20 80 40 20 1 Connect signal from source to CH B input 2 Move Biamp Stereo switch to BIAMP input mode 3 Move Stereo Mono switch to Stereo mode 4 Select desired speaker load 84 40 20 for each A Division of Dual SPEAKONs CE SPEAKON Connector Wiring back of SPEAKON plug CHB CHB back of SPEAKON plug Connect appropriate speaker load 80 40 20 to 5 way binding posts CE units Connect as shown above for Dual SPEAKONSs or Single 4 Wire SPEAKON Adjust CH A amp CH B level controls independently Dual SPEAKONs CE SPEAKON Connector Wiring back of SPEAKON plug CHB CHB back of SPEAKON plug Connect appropriate speaker load 8Q 4Q 2Q to 5 way binding posts CE units Connect as shown above for Dual SPEAKONs or Single 4 Wire SPEAKON 6 Adjust CH A amp CH B level controls independently channel CH A and CH B loads do not need to match 18 BRIDGE MONO MODE SR2300 SR2800 N MIN AWI 9 go ULI i Load ower OV 70V iQ 4Q 20 CHA Lo A E DR OV 70V l
20. eamps 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 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 AN AC LINE Connect the unit to a properly rated supply circuit The SR2300 2800 can be configured to operate within the following AC mains voltage ranges 100 140VAC 50 60Hz 115VAC 60Hz typ 200 265VAC 50 60Hz 230VAC 50Hz typ Connection is made by 14 gauge IEC type 320 grounded 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 ae 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
21. eople 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 uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons The exclamation point within an equilateral triangle is intended to alert the user of the presence of important operating and maintenance servicing instructions in the litera ture accompanying the appliance The lightning flash with arrowhead symbol adjacent to a terminal is intended to Y alert the user that the terminal is hazardous live 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 g
22. es 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 Der aufleuchtende Blitz mit dem Pfeilsymbol neben einem Terminal dient dazu den Benutzer darauf aufmerksam zu machen dass der Terminal angestellt gef hrlich ist 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 Das Stromversorgungskabel besch digt wurde Eine Fl ssigkeit in das Ger t eingedrimgem ist Das Ger t Regen ausgesetzt wurde Das Ger t nicht mehr ordnungsgem b funktioniert ggf nicht mehr die volle Leistung abgibt Das Ger t runtergefallen ist oder das Geh use besch digt wurde 15 SERVICE Der Benutzer sollte nur den Service ausf hren der in der Bedienungsanleitung f r den Benutzer fre
23. ier ON and OFF 3 Power LEDs Verifies that the amplifier channel is ON 4 Status LEDs Displays the status of the amplifier The LEDs are as follows SIGNAL indicates if signal is present CLIP illuminates if 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 5 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 6 Male XLR Daisy Chain Jacks Enables the connection of multi ple amplifiers The signal derived from the input signal is directly passed through daisy chained to these output jacks 7 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 8 Level Controls Adjusts the gain of the amplifier 9 Load Switch Selects the speaker impedance or transformer volt age that will be connected the output binding posts In Standard Mode the amplifier can drive 20 4Q or 80 speaker loads In Constant Voltage Mode the amplifier can drive an array of speakers using 70V or 100V transformers 10 Out
24. igegeben wird Den 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 O O amp gt m ATTENTION INFORMATIONS IMPORTANTES DE SECURITE ATTENTION _ RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR i AVERTISSEMENT Afin de prevenir les risques de feu ou de choc ne pas exposer cet appareil a la pluie ou a 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 cuisiniere fours chemin es etc 6 VENTILATION Le mat
25. 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 presenza di ten sioni elevate non isolate e di valore sufficiente 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 Il simbolo del lampo con testa a freccia posto accanto al terminale avverte l utente che sul terminale presente una tensione pericolosa 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 funzion
26. in Jacks Enables the connection of multiple amplifiers signal is directly passed through daisy chained to these output jacks The signal derived from the input 7 Stereo Mono Switch This dual purpose switch is used to so so select the operating mode of the amplifier In Stereo mode the amplifier can be configured for standard 2 channel stereo operation In Mono mode the amplifier can be con figured 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 amplifier can drive 20 4Q or 8Q speaker loads In Constant Voltage Mode the amplifier can drive an array of speakers using 70V or 100V transformers 10 Output Binding Posts Connects the speaker array to the amplifier These jacks allow bare wire spade lugs or dual banana plugs to be connected to the amplifier FRON T VIEW MA ig TI I 11 12 EN NEN Internal Fans internal fans keep the amplifier circuitry 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 Ground from Chassis Ground Chassis Ground is permanently connect ed to Earth Ground through the third pin of the power cord With the switch
27. in excess of 30A of fault current 15 Biamp Stereo 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 16 Removable Rear Panel 8 screws can be removed to service fans and internal components without unracking the amplifier 11 U Installation The SR2300 2800 is a standard 2U 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 SR2300 2800 uses forced air cooling fan cooling to remove the heat produced during normal operation Free air flow at the mounting location is a critical factor in accomplishing long term reliable operation of the amplifier Maximumoperating ambient temperature is 40 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 a rack system make sure there is a 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 ventilated or rack panel fans vents In the case of rack panel fans vents the co
28. in the Chassis position the Audio Ground is connected to Chassis Ground In the Float posi tion Audio Ground is isolated floated from Chassis Ground and must be connected to Earth Ground by other means A CAUTION Do not attempt to float Audio Ground from 13 14 15 16 Chassis Ground unless you are absolutely certain there is some other common ground between the amplifier and the source equipment Without this common ground oscilla tions and severe damage may occur Mains Power Fuse Protects the mains electrical circuit in case abnormal current draw from the amplifier is expe rienced Mains Power Connector Connects AC Voltage to the amplifier The power connector is safety approved IEC type 320 The earth safety ground pin of the power connector is permanently connected to the chassis This connection is capable of shunting in excess of 30A of fault current Biamp Stereo 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 oper ating this switch Removable Rear Panel 8 screws can be removed to ser vice fans and internal components without unracking the amplifier Design Features SR2300CE SR2800CE FRONT VIEW O AM m 4 N VS 1 Recessed Front Panel Prevents switches and controls from acci dentally being adjusted or broken 2 Power Switch Turns the amplif
29. level control Since this circuit triggers off the internal error signal of the amplifier it automatically adjusts for any combination of speaker impedance or Load Switch setting 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 Input cable is not connected to CH B while in Biamp Mono 70V or 100V mode Biamp or Mono switch is not selected when using a single input cable 1 Wiring Diagrams g Diagrams STEREO MODE SR2300 SR2800 AO fos CZ NOTO a ADS N MPUNS MES 7 SAS Ta VELE CHA Pa S AV Y ID OY Y AMP STEREO Sih cow A A ua fur f 09 AJA 40 160 MA q m y A loi ow Lay NEUN 5 st tas toone ares Wa ADD x Ra GA MIN N 80 40 20 80 40 20 1 Connect signal from source to both CH A and CH B inputs 2 Move Biamp Stereo switch to Stereo input mode 3 Move Stereo Mono switch to Stereo mode 4 Select desired speaker load 80 40 20 for each channel CH A amp CH B loads do not need to match BIAMP MODE SR2300 SR2800 Loa 100V 70 8Q 40 2 oad Power a 40 20 O
30. ligro cuando est activa 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 Hafler deben ser llevados a servicio por personal calificado cuando A El cable de corriente 6 el enchufe haya sido da ado 6 B Objetos l quido hayan sido introducidos derramado en el equipo C El equipo haya sido expuesto a l
31. luvia 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 as ACHTUNG WICHTIGE SICHERHEITS INFORMATIONEN ACHTUNG GEFAHR EINES ELEKTRISCHEN SCHLAGS NICHT OFFNEN WARNUNG Um die gefahr eines elektroschocks oder feuer zu vermeiden setzen sie das gerat keinem regen oder extremer feuchtigkeitaus 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 Alle Warnungen des Ger tes und der Bedienungsanleitung sind extrem wichtig und m ssen befolgt werden 4 INSTRUKTIONEN BEACHTEN Alle Operations und Geb
32. ngle 4 Wire SPEAKON 6 Adjust CH A and CH B level controls independently oa Service Policy and Limited Warranty Rockford Corporation Hafler Division offers a limited warranty on Hafler products on the following terms e Length of Warranty 5 years on SR2300 amp SR2800 3 years on B Stock electronics receipts are required 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 e Products found to be defective during the warranty period will be repaired or replaced with product deemed to be equivalent 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 VI A 0 N Limit on Implied Warranties Any implied warranties including warranties of fitness for use and merchantability are limited 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
33. nits Wire SPEAKON as shown above and connect to CH A output 6 CH B level control adjusts the mono output level 1400W SR2800 700W SR2300 Single SPEAKON Speaker CE SPEAKON Connector Wiring Speaker back of SPEAKON plug Connect to CH A output so 5 Connect parallel array of 70V transformer equipped speakers across the red terminals of the 5 way binding posts 1400W SR2800 700W SR2300 CE units Wire SPEAKON as shown above and connect to CH A output 6 CH B input sensitivity controls 70V mono output level Amplifier will clip at 70Vrms level 19 100V MONO MODE SR2300 SR2800 PANNE WW ge TUE DO0OOB TNA ee TOUV 70V 20 8Q 4Q 20 UE SR2800 JO PODIA Q FRA Oo y nach N Chassis Foa DIN K L Orm 09 DI IN BIAMP STEREO OUT aow 160 100V pas a gt UD ZL 4 x q y C ZN M E H N ke ALI LUS A A Y D i 1 l AALA y f Aten sea be RRE ROS 4 j q ta mi gt OT NGS a RE SZ S N NIRO ms NZ cross REI inals q load switches to one A 300W CHB ESSE a OUT 1 a 100 Volt Transformer 100 Volt Transformer Parallel Array 1 Connect signal from source to CH B input 2 Biamp Stereo switch not active Stereo Mono switch overrides this switch when in mono 70
34. oling will be most effective when the amplifier s are located as far away from the fans vents as pos sible to prevent air recirculation i e amplifiers at the bottom fans vents at top Allow a minimum of 3 clearance in the front and back of the amplifier for adequate ventilation 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 eth power normal operating conditions for continuous voice or music and lard 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 SR2300 2800 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 pr
35. oltage between A V and 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 impedances It takes twice as much current to develop a given wattage into 2Q as it does into 8Q but only half the voltage Many amplifiers quote a high output current at 20 but have an unpublished operating time measured in a 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 An 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 2Q 4Q and 8Q useful in bi amping and tri amping etc Both 70 and 100 volt constant voltage line operation are possible Instructions on the back of the amplifier explain the various options UNIVERSAL LINE VOLTAGE INPUT Voltage selection is provided in two bands 100 140 v
36. olts and 200 265 volts 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 am
37. oth load switches to 20 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 70V 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 Typically this may only occur when a transient signal corresponds to a dip in the speak ers impedance curve and will not cause significant clipping distortion However if the nominal speaker impedance is sig nificantly lower than the Load Switch setting excessive clip distortion can result accompanied 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 occur infrequently See Load Switch paragraph LOAD SWITCH The Load Switch located on the front panel allows the amplifier s power supply to be matched to the speaker load for more efficient cooler running operation The power output and thermal performance of the amplifier remains consistent with all the possible combination of the loads listed In Stereo or Biamp
38. plifier will be turned 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 Soeaker loads are protected from turn
39. pparato 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 apparato 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
40. put Speakon Connections Connects the speaker array to the amplifier Individual Speakon connectors can be used for stereo connections or a single 4 wire Speakon connector can be used for stereo BIAMP or mono mode speaker connections 11 Internal Fans internal fans keep the amplifier circuitry cool Allow a minimum of 3 clearance on the front and back of the amplifier vents for adequate ventilation 12 Chassis Float ground switch Isolates Audio Ground from Chassis Ground Chassis Ground is permanently connected to Earth Ground through the third pin of the power cord With the switch in the Chassis position the Audio Ground is connect ed to Chassis Ground In the Float position Audio Ground is isolated floated from Chassis Ground and must be connect ed to Earth Ground by other means A CAUTION Do not attempt to float Audio Ground from Chassis Ground unless you are absolutely certain there is some other common ground between the amplifier and the source equipment Without this common ground oscillations and severe damage may occur 13 Mains Power Fuse Protects the mains electrical circuit in case abnormal current draw from the amplifier is experienced 14 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 shunt ing
41. rauchshinweise sind extrem wichtig und m ssen beachtet werden 9 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 ngerungskabel Der Blitz mit dem Pfeil in einem gleihschenkligen Dreieck soll den benutzer vor unisolierter gef hrlicher Spannung innerhalb des Ger t
42. rounding 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 or 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 service 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
43. s 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 sE Ground shield connected at both ends Shield Chassis XLR 1 4 TRS Amplifier FLOATED x 2 UNBALANCED SHIELDED TWISTED PAIR SOURCE Ground shield connected at both ends Shield Chassis FLOATED 2 UNBALANCED COAX OR TWISTED PAIR SOURCE en Audio Ground Shield Chassis 1 4 Mono sleeve shorts i input to Audio Ground XLR short pins 1 amp 3 together The output XLR jack accepts a female XLR plug and provides a hard wired pass through of all 3 pins of the input jack 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 dB The maximum gain position is marked as the 0 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
44. the input cable with the switch in the Float position and pin 1 of the XLR or the sleeve of the 1 4 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 conected to the earth safety ground pin of the Mains power connector e The Audio Ground of each SR2300 SR2800 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 OQ 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 0Q resistan
45. uides 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 renvers 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 questo apparato a pioggia o umidita 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 a
46. y when installed and adjusted by an authorized service technician and the security cover is installed to prevent further adjustments Install the plexiglass security cover onto the front of the amplifier with the screws provided Ensure the access hole for the power switch is located properly NOTE To maintain THX approval when the system requires service adjustment or reconfiguration have it done by an authorized service technition ee Operation The amplifier will operate with either a balanced or unbalanced signal source INPUT The input jacks used on the SR2300 2800 are dual function connectors which accept 1 4 TRS Tip Ring Sleeve or male XLR plugs The amplifier will operate with either a balanced or 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 Tip sleeve shorts amplifier Ring Sleeve Tip Sleeve input to audio ground DAISY CHAIN OUTPUT 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
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