Bass Amplifier - Musik Produktiv
Contents
1. LOOP o RETURN RETURN SEND LEFT B RIGHT A Ue 8 MONO ANSFOF MER BALANCED LINE OUTPUT B CHANNEL A TA r STEREO WET MON y MONO 24 CAUTION ro REDUCE THE RISK OF FIRE REPLACE FUSE WITH SAME TYPE AND RATING ATTENTION UTILISER UN FUSIBLE DE RECHANGE DE MEME TYPE POWER AMP B POWER AMP PREAMP POWER AMP A POWER AMP PREAMP EFFECTS INPUT OUTPUT INPUT OUTPUT BYPASS O O M ZN MONO BIAMP HIGH O BRIDGE BRIDGE INPUT BIAMP LOW MONO BRIDGE INPUT 32 3 34 35 36 37 40 41 44 45 TRANSFORMER BALANCED LINE OUTPUT JACKS These jacks supply a balanced signal for connec tion to a house mixing board recording console or external amplifier s The signal level at these jacks is controlled by the front panel Line Out Level control 16 and is governed by the Stereo Mono switch 42 and the Pre Post switch 43 42 LINE OUT STEREO MONO SWITCH This switch is active only when the Pre Post switch 43 is at the post position switch depressed When active this switch gov erns the signals at the Line Out jacks as follows In the Stereo Mode switch out The Channel A line out jacks 44 45 supply a signal from the Effects Loop Return Right A jack 47 The Channel B line out jacks 40 41 supply a signal from the Effects Loop Return Left B jack 46 In the Mono Mode switch depressed The Channel A line out jacks 44 45 supply a wet mono preamp signal any exter2. This jack is provided for connection to an electronic tuner and is always live even when the Mute switch 3 is engaged allowing for silent tuning as well as a monitor feed which stays hot even when the house mix is muted IMPORTANT This unit employs forced air cooling by means of an internal fan The rear and side ventillation slots must remain unobstructed when operating this amplifier When mounting the unit in a rack make sure there is ample room for proper air circulation The rack must be constructed and positioned in such a manner to allow proper air flow and the exhausting of hot air away from the rack at all times 10 15 A EL UM P SERIAL MADE IN THE U S A BY SLM ELECTRONICS 1400 FERGUSON AVENUE ST LOUIS MO 63133 lo 9 wae AC LINE IN 28 INTERRUPTOR DE CIRCUITO El SVT 4 PRO utiliza un interruptor de circuito en la linea de CA que ayuda a proteger el equipo contra da os debidos a demandas excesivas de corri ente Si el amplificador deja de funcionar revise el interruptor de circuito Si ha quedado abierto el bot n se encontrar desplaza do hacia afuera y mostrar un color contrastante Usted puede restablecer el interruptor de circuito oprimi ndolo hacia adentro hasta que se atore El interruptor tiene que enfriarse un rato corto antes de que el bot n pueda atorarse Si el interruptor de circuito se abre repetidamente sin entrada de se al haga que una per sona de servicio
3. calificada revise el amplificador 29 CA ADENTRO Enchufe con firmeza el extremo hembra del cable proporcionado de energ a CA dentro de este recept culo empu j ndolo por completo hasta dejarlo asentado totalmente Enchufe el extremo macho del cord n a una toma aterrizada de CA NO PASE POR ALTO EL BORNE A TIERRA DE LA CLAVIJA DE CA 31 SALIDAS DE BOCINAS Los jacks Speakon Se recomienda el uso de estos conectores de servicio pesado cuan do toque a niveles fuertes de salida debido a su capacidad para munejar corrientes increiblemente altas Conecte el amplificador a su s gabinete s de bocinas usando cables para bocinas de calibre pesado terminando en conectores apropiados Mira al izquiedra de los jacks para informacion de conneciones Los jacks de 1 4 Estos jacks monofonicos de 1 4 dos por cada canal cableados en paralelo le ofrecen un m todo conveniente para conectar el amplificador a su s bocina s usaado cables terminando en enchufes de 1 4 Cuando toque a niveles fuetes de salida se recomienda que use los jacks Speakon 32 INTERRUPTOR PUENTE ESTEREO MONOFONICO Este interruptor establece el modo de operaci n del amplificador En la posici n de AFUERA el amplificador se encuentra en el Modo Estereof nico con el interruptor en la posici n de ADEN TRO el amplificador se encuentra en el Modo Monof nico Puenteado e ela SVT IV PRO E 20 29 3
4. depressed bypasses the Effects Loop A footswitch will override the front panel switch Please refer to 38 rear panel 18 LIMIT DEFEAT The SVT 4 PRO employs internal limiter circuits to help keep the power amplifier s output clean at extreme volume levels All amplifiers may begin to clip their output signals as they approach maximum output levels resulting in potentially speaker damaging distortion These circuits may be defeated by depressing this switch which may result in an increase in output power but with the possi bility of distortion Use discretion whenever playing with the Limit circuits defeated 19 MASTER This controls the overall output level of the amplifier For the best results adjust the Gain control as directed see 5 and use this control to obtain the desired volume level 20 LIMIT LED This LED will flash any time the internal limit circuit is called upon to keep the amplifier s output signal clean This indicates that the amplifier is nearing full output and the limiter is keeping it from clipping the output signal 21 CROSSOVER FREQUENCY This sets the crossover point between the Biamp High and Biamp Low Outputs when using the amplifier in the biamp mode See page 13 22 CROSSOVER BALANCE This adjusts the relative level between the low and high frequency biamp signals when using the amplifier in the biamp mode 23 9 BAND GRAPHIC EQ These sliders control the ampli tude of the signal at
5. the frequency indicated below each con trol The center position of each control is flat sliding the con trol upward will increase the output signal level of that fre quency sliding the control downward will decrease it The Graphic EQ can be used in two ways 1 To fine tune your sound make small adjustments at the desired frequencies and leave the EQ on throughout the entire session This is great for adapting to varying room acoustics when going from club to club etc 2 For a completely different sound make larger adjustments and only activate the EQ when you want a second channel sound such as during bass solos 24 LEVEL This is the output volume control for the Graphic EQ and only affects the signal when the EQ is engaged If the EQ d signal is too soft slide the Level control up if it s too loud slide the control down 25 POWER LED This LED illuminates green when the Power switch 27 is depressed 26 ACTIVE LED This LED illuminates when the Graphic EQ switch 15 is depressed 27 POWER This heavy duty rocker switch applies AC power to the amplifier the amp is ON when the top of the switch is depressed OFF when the bottom of the switch is depressed 1 ENTRADA Conecte aqu su guitarra de bajos utilizando un cable blindado para instrumentos 2 SALIDA DEL SINTONIZADOR Se provee este jack para conectado a un sintonizador electr nico y siempre se encuen tra vivo a n cuando se utilice e
6. 4 PROS Effects Return Right A jack Connect a speaker cable from the SVT 4 PRO s Power Amp A Speaker Output jack to the input jack s of the Stage Left speakers Connect a speaker cable from the SVT 4 PRO s Power Amp B Speaker Output jack to the input jack s of the Stage Right speakers u For Speakon connectors pin 1 pin 1 oRWONM te 7 12 SVT 4 PRO Bass Amplifier In the example shown below the SVT 4 PROS two internal EE amplifiers will power both a full range cabinet and a low frequency cabinet The crossover point for the low frequency cabinet is determined by the Crossover Frequency control H217 Set the Stereo Mono Bridge switch OUT Stereo position and connect the system as follows e A e p A ANALA WA AA A MAIGA O OO a KONO d 2 E Biamp Full uif Range Lows dolo ollo onoo ol O 9 CABINET S LOW FREQ CABINET S 1 Connect a shielded cable from the SVT 4 PRO s Biamp Low Out jack to its Power Amp A Power Amp In jack 2 Connect a speaker cable from the SVT 4 PRO s Power Amp A Speaker Output jack to the input jack of the low frequency cabinet s 3 Connect a speaker cable from the SVT 4 PRO s Power Amp B Speaker Output jack to the input jack of the full range cabinet s In the example shown below the SVT 4 PROS two internal power amplifiers will a both a high frequency cabinet and a low frequency cabinet The crossover point for the cabinets is d
7. 9 40 TRANSFQ CHANNEL B DRY MONO 7 KO KO HIGH LOW BAL OUTPUT OUTPUT UNBAL VES VS NE MZ MONO BRIDGE AMP B BLAMP SPEAKER OUTPUTS 1600 WATTS 4 OHMS MONO BRI 2 OHMS MINIMUM LOAD PER CHANNEL BI MP MONO BRIDGE 1 HOT 2 RETURN BIAMP 1 LOW HOT 1 LOW RETURN 2 HIGH HOT 2 HIGH RETURN 31 33 35 ENTRADAS DEL AMPLIFICADOR DE POTENCIA Estos jacks se conectan directamente al amplificador de poten cia para usarse con preamplificadores Cuando se usan fuentes externas conecte la SALIDA de las fuentes a estos jacks usan do cables blindados de instrumentos para alimentar las se ales a las secciones del amplificador de potencia La se al interna queda desconectada cuando se inserta un enchufe En el Modo Monof nico Canal A Entrada En el Modo Biamp Canal A Entrada de Bajas Canal B Entrada de Altas 34 36 SALIDAS DE PREAMPLIFICADOR Estos jacks son salidas directas de preamplificador para usarse con amplifi cadores de potencia externos tableros mezcladores efectos externos etc Conecte las entradas de amplificador a estos Jacks usando cables blindados para instrumentos 37 INTERRUPTOR DE PIE PARA DERIVACION DE EFECTOS Conecte un interruptor de pie de un solo bot n a este jack para el control remoto del Circuito de Efectos El uso del interruptor de pie pasa por alto el interruptor de Derivaci n de Efectos del tablero delantero 38 ECUALIZADOR GRAFICO EQ INT
8. Bass Amplifier Ampeg is Proudly Made in America SVT 4 PRO Bass Amplifier TABLE OF CONTENTS Important Safeguards and Precautions Introduction Features The Front Panel Controls and Their Use English The Front Panel Controls and Their Use Spanish The Rear Panel English The Rear Panel Spanish Connections Mono Bridged Dual Mono Stereo Biamp Full Range and Lows Biamp Highs and Lows Biamp With Secondary Amplifier Some Suggested Settings Rack Mounting Troubleshooting System Block Diagram Technical Specifications Important Safeguards and Precautions All Ampeg products are designed for continuous safe operation as long as common sense is used and steps are taken to help avoid certain problems Abiding by the following rules can help prevent damage to your amplifier yourself and oth ers e The amplifier is equipped with a three pronged AC power cord To reduce the risk of electrical shock NEVER remove or otherwise attempt to defeat the ground pin of the power cord Connect the amplifier ONLY to a properly grounded AC outlet of the proper voltage for your amp Avoid sudden temperature extremes rain and moisture Also avoid sudden and intense impact If the unit has been subjected to any of the preceding abuses have it looked at by an authorized service center NEVER set the amplifier on a support that might give out under its weight Always keep the total soeaker imp
9. ERRUPTOR DE PIE DEL MUDO Conecte un interruptor de pie de dos botones a este Jack para el control remoto del Mudo y del Prendido Apagado del EQ En el enchufe estereofonico de 1 4 la punta controla el Mudo y el anillo controla el Prendido Apagado del EQ El inter ruptor de pie del EQ pasa por alto el interruptor del panel delantero y la funici n del Mudo est disponible desde cualquiera de las localizaciones 39 SALIDAS ALTA BAJA DE BIAMPLIFICACION Cuando se use en el modo de biamplificaci n el jack de Salida de Altas de Biamplificaci n se conecta al amplificador de potencia de fre cuencias altas y el jack de Salida de Bajas de Biamplificaci n se conecta al amplificador de potencia de frecuencias bajas V ase las p ginas 12 y 13 40 41 44 45 JACKS DE LINEA AFUERA Estos jacks proveen una se al para conectarla a un tablero mezclador con Speakon es una marca registrada de Neutrik A G SVT 4 PRO Bass Amplifier 41 42 43 44 45 46 47 48 EFFECTS LOOP RETURN LEFT B SFOF MER BALANCED LINE OUTPUT CHANNEL A A WET MONO PONG Ss A BAL e POST CAUTION RISK OF ELECTRIC SHOCK AVIS RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR WARNING ro REDUCE THE RISK OF FIRE OF OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE C Mg D UNBAL RETURN RIGHT A MONO SEND MONO BAL e dos Ao d e 2 RECHANGE DE MEME TYPE POWER AM
10. P B POWER AMP PREAMP INPUT OUTPUT AM Y ER a A Hd E gt MONO BIAMP HIGH BIAMP LOW BRIDGE INPUT MONO BRIDGE INPUT POWER AMP A POWER AMP PREAMP EFFECTS INPUT OUTPUT BYPASS D BRIDGE NNEL 32 33 34 35 36 37 sola de grabaci n o amplificador es externo s de la casa El nivel de la se al en estos jacks se controla mediante el con trol de Nivel L nea Afirera 16 del tablero delantero y se gob lerna mediante el interruptor Est reo Monof nico 42 y el interruptor Pre Post 43 42 INTERRUPTOR DE LINEA AFUERA ESTEREO MONOFONICO Este interruptor queda activado solamente cuando el interruptor Pro Post 43 se encuentra en la posi ci n post interruptor hacia adentro Cuando se encuentra activado este interruptor gobierna las se ales en los jacks de L nea Afuera como sigue En el Modo Estereof nico interruptor hacia afuera Los jacks de linea afuera del Canal A 144 45 proveen una se al del jack A 47 Retorno Derecho de Circuito de Efectos Los jacks de l nea afuera del Canal B 440 41 proveen una se al del jack B 46 Retorno Izquierdo del Circuito de Efectos En el Modo Monof nico interruptor hacia adentro Los jacks de l nea afuera del Canal A 244 45 proveen una se al de preamplificador monofonica h meda cualquier efecto externo queda aplicado a esta se al Los retornos Izquierdo y Derecho del Circuito de E
11. R A UN TECHNICIEN QUALIFIE IMPORTANT SAFETY INSTRUCTIONS READ FOLLOW HEED AND KEEP ALL INSTRUCTIONS AND WARNINGS DO NOT OPERATE NEAR ANY HEAT SOURCE AND DO NOT BLOCK ANY VENTILATION OPENINGS ON THIS APPARATUS FOR PROPER OPERATION THIS UNIT REQUIRES 3 75CM OF WELL VENTILATED SPACE AROUND HEATSINKS AND OTHER AIR FLOW PROVISIONS IN THE CABINET DO NOT USE THIS APPARATUS NEAR SPLASHING FALLING SPRAYING OR STANDING LIQUIDS CLEAN ONLY WITH LINT FREE DAMP CLOTH AND DO NOT USE CLEANING AGENTS ONLY CONNECT POWER CORD TO A POLARIZED SAFETY GROUNDED OUTLET WIRED TO CURRENT ELECTRICAL CODES AND COMPATIBLE WITH VOLTAGE POWER AND FREQUENCY REQUIREMENTS STATED ON THE REAR PANEL OF THE APPARATUS e PROTECT THE POWER CORD FROM DAMAGE DUE TO BEING WALKED ON PINCHED OR STRAINED UNPLUG THE APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED FOR LONG PERIODS OF TIME amp ONLY USE ATTACHMENTS ACCESSORIES STANDS OR BRACKETS SPECIFIED BY THE MANUFACTURER FOR SAFE OPERATION AND TO AVOID INJURY AS e WARNING TO REDUCE THE RISK OF ELECTRIC SHOCK OR FIRE DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE e SERVICE MUST BE PERFORMED BY QUALIFIED PERSONNEL OUR AMPLIFIERS ARE CAPABLE OF PRODUCING HIGH SOUND PRESSURE LEVELS CONTINUED EXPOSURE TO HIGH SOUND PRESSURE LEVELS CAN CAUSE PERMA NENT HEARING IMPAIRMENT OR LOSS USER CAUTION IS ADVISED AND EAR PROTECTION IS RECOMMENDED IF UNIT IS OPERATED AT HIGH VOLUME EXPLANATION OF G
12. RAPHICAL SYMBOLS DANGEROUS VOLTAGE IT IS NECESSARY FOR THE USER TO REFER TO THE INSTRUCTION MANUAL EXPLICACION DE SIMBOLOS GRAFICOS A VOLTAJE PELIGROSO A ES NECESARIO QUE EL USUARIO SE REFIERA AL MANUAL DE INSTRUCCIONES EXPLICATION DES SYMBOLES GRAPHIQUES DANGER HAUTE TENSION REFERREZ VOUS AU MANUAL D UTILISATION SVT 4 PRO Bass Amplifier An Introduction to your new Ampeg SVT 4 PRO Bass Amplifier The harmonically rich sound and legendary performance of the AMPEG SVT are redefined in the SVT 4 PRO This versatile and powerful bass amplifier delivers up to 1600 watts of unsurpassed musical power and offers the classic vibrancy of tubes with several outstanding features All of the features and controls of your SVT 4 PRO are covered in detail within the pages of this owner s guide We recommend that you go over them before you use the amplifier Features In the world of high performance bass amps Ampeg s SVT amplifiers stand alone In true Ampeg tradi tion the SVT 4 PRO offers you more power performance and flexibility than any other bass amplifier in its class Below are some of the outstanding features of your new amplifier features which set it apart from the competition e DUAL SEPARATE POWER AMPLIFIERS Operate in true stereo or mono bridged mode for even greater output power page 8 12 e BIAMP CAPABLE Adjustable crossover frequency control and low to high fre quency balance control allow you to f
13. TONE CONTROL RANGE Bass Midrange Treble GRAPHIC EQ LEVEL GRAPHIC EQ RANGE 33Hz 80Hz 150Hz 300Hz 600Hz 900Hz 2kHz 5kHz 8kHz BRIGHT SWITCH ULTRA HIGH SWITCH ULTRA LOW SWITCH SIGNAL TO NOISE RATIO COMPRESSION RATIO FOOTSWITCH JACK TUBE COMPLEMENT POWER REQUIREMENTS Domestic Export SIZE AND WEIGHT 1600 Watts Mono Bridged 4 Ohms 1200 Watts Continuous 1200 Watts Mono Bridged 8 Ohms 900 Watts Continuous 2 x 900 Watts 2 Ohms 600 Watts Continuous 2 x 625 Watts 4 Ohms 490 Watts Continuous 2 x 350 Watts 8 Ohms 300 Watts Continuous 12dB 50Hz 15dB Frequency selected 220 450 800 1 6k or 3kHz 14dB 19dB O 5kHz 10dB 15dB 8dB 9dB 10dB 6dB 2kHz 6dB 5kHz 2 5dB 50Hz 12dB 560Hz 1 5dB O 5kHz 7 5dB typical 10 1 2dB change in output for 20dB change in input 50mV to 500mV Effects Bypass mono Graphic EQ On Off Mute On Off Tip Mute Ring EQ 12AX7 3 120VAC 60Hz 1 4kVA 100 115VAC 50 60Hz 1 4kVA 230VAC 50 60Hz 1 4kVA 19 17 4W x 5 6 H with feet x 15 5 D 39 5 lbs Manufacturer s Name Production Facility Production Facility Shipping Facility Office Facility Product Type Declaration Of Conformity 32 Effective 01 01 2001 SLM Electronics 1901 Congressional Drive St Louis MO 63146 USA 700 Hwy 202 W Yellville AR 72687 USA 1400 Ferguson Ave St Louis MO 63133 USA 1400 Ferguson Ave St Louis MO 63133 USA Au
14. a posici n de ganancia ptima 7 COMPRESION Esto controla la cantidad de compresi n de se al En la posici n totalmente contraria a las manecillas del reloj no hay compresi n totalmente a favor de las manecil las del reloj la relaci n de compresi n es de 10 1 El efecto s nico de la compresi n es de din mica reducida sosten 33Hz 80Hz 150Hz 300Hz 600Hz 900 MIDRANGE FR 1 GAIN COMPRESSION BASS 0 10 0 10 ULTRA HI v9 PEAK JLTRA Lo 23 4 5 6 7 8 9 10 11 imiento incrementado y un nivel de salida mas constante sin importar lo ligera o fuertemente que se toquen las cuerdas El compresor es muy transparente es decir que tiene muy poco efecto en el tono de su instrumento 8 ULTRA AGUDOS Cuando se oprime hacia ADENTRO este interruptor realza la cantidad de la salida de frecuencias altas en 6dB a 5kHz 9 ULTRA GRAVES Al oprimirse este interruptor hacia ADEN TRO se realza en gran forma la cantidad de tonos bajos de la parte grave que usted puede sentir y o r en especial de las cuerdas de E bajo y B bajo en un bajo de 5 cuerdas 10 BAJOS Es el control primordial para las frecuencias bajas Permite 12dB de recorte totalmente a la izquierda refuerzo totalmente a la derecha a 50Hz La salida de fre cuencias graves queda plana en la posici n central 11 RANGO MEDIANO Es el control primordial en el rango mediano Permite 15dB de recorte totalmente a la izquierda refuerzo totalmen
15. dio Amplifier Complies with the following Standards Safety EMC EN60065 E60065 C22 2 UL6500 and or UL813 Directive 89 336 EEC EN55103 EN55013 EN61000 and or FCC 47CFR 15B clA Supplementary information provided by SLM Electronics R 4 D Engineering 1901 Congressional Drive St Louis MO 63146 USA Tel 314 569 0141 Fax 314 569 0175 Www ampeg com Ampeg is proudly Made in America 1999 SLM Electronics 1400 Ferguson Avenue St Louis MO 63133 U S A P N 47 617 04 102203
16. e pie anula al tiene preferencia sobre el interruptor del panel delantero 16 NIVEL DE LALBEA AFLIERA Esto controla la fuerza de la se al en los jacks de L nea Afuera 40 41 44 45 17 DERIVACION PARA EFECTOS Este interruptor en posi ci n de ADENTRO pasa alrededor del Circuito de Efectos El interruptor de pie pasa por alto este interruptor 18 INHIBILITADOR DE LIMITE El SVT 4 PRO utilizes unas circuitos limitadores internos que ayudan a conservar limpia la salida del amplificador de potencia en los niveles extremos de volumen Todos los amplificadores pueden empezar a recortar sus se ales de salida conforme se aproximan a los niveles m ximos de salida resultando una distorsi n potencialmente da ina a las bocinas Este circuito se puede inhabilitar oprim iendo este interruptor hacia adentro lo que puede resultar en incremento de la potencia de salida pero con posibilidad de distorsi n Use discreci n cuando toque con el circuito Limitador desconectado 19 MAESTRO Esto controla el nivel general de salida del amplificador Para obtener el menor nivel posible de ruido ponga el control de Ganancia 5 en su m xima posici n posible y use este control para obtener el nivel de volumen deseado 20 DIODO LED DE LIMITE Este LED parpadear cada vez que el circuito limitador interno funcione para conservar limpia la se al de salida del amplificador Esto indica que el amplifi cador se acerca a su salida
17. edance at or above the rated load Unplug the amplifier before cleaning it NEVER spray liquid cleaners onto the amplifier Wipe it with a slight ly dampened lint free cloth to remove dirt and film Don t use the amplifier if it has sustained damage to the chassis controls or power cord Refer the unit to an authorized service center for inspection Amplifiers capable of producing high volume levels are also capable of inflicting permanent hearing loss or damage if the exposure to such levels is prolonged Such damage is progressive and irreversible CAUTION PRECAUCION ATTENTION RISK OF ELECTRIC SHOCK RIESGO DE CORRIENTAZO RISQUE D ELECTROCUTION WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE PRECAUCION PARA REDUCIR EL RIESGO DE INCENDIOS O DESCARGAS ELECTRICAS NO PER ATTENTION PROTEGEZ CET APPAREIL DE LA PLUIE ET DE L HUMIDITE AFIN D EVITER TOUT THIS APPARATUS TO RAIN OR MOISTURE TO REDUCE THE RISK OF ELECTRIC MITA QUE ESTE APARATO QUEDE EXPUESTO A LA LLUVIA O LA HUMEDAD PARA DISMINUOIR EL RISQUE D INCENDIE OU D ELECTROCUTION POUR REDUIRE D ELECTROCUTION NE PAS ENLEVER SHOCK DO NOT REMOVE COVER NO USER SERVICEABLE PARTS INSIDE REFER RIESGO DE CORRIENTAZO NO ABRA LA CUBIERTA NO HAY PIEZAS ADENTRO QUE EL USARIO LE COUVERCLE AUCUNE PIECE INTERNE N EST REPRABLE PAR L UTILISATEUR POUR TOUTE SERVICING TO QUALIFIED SERVICE PERSONNEL PUEDO REPARAR DEJE TODO MANTENIMIENTO A LOS TECHNICOS CALIFICADOS REPARATION S ADRESSE
18. etermined by the Crossover Frequency control 21 Set the Stereo Mono Bridge switch OUT Stereo position and connect the system as follows SVT 4 PRO P Biamp P BP A M o PA A e le O F HIGH FREQ Sc UN VAS PAINE 7 Na Na Na y e CABINET S OUT AS AS T op Highs Lows LOW FREQ CABINET S 1 Connect a shielded cable from the SVT 4 PRO s Biamp High Output jack to its Power Amp B Power Amp In jack 2 Connect a shielded cable from the SVT 4 PRO s Biamp Low Output jack to its Power Amp A Power Amp In jack 3 Connect a speaker cable from the SVT 4 PRO s Power Amp A Speaker Output jack to the input jack of the low frequency cabinet s 4 Connect a speaker cable from the SVT 4 PRO s Power Amp B Speaker Output jack to the input jack of the high frequency cabinet s In the example shown below the SVT 4 PROS two internal power amplifiers are bridged together and will power the low frequency cabinet s A second ampli fier will be used to power the high frequency cabinet s The crossover point for the cabinets is determined by the Crossover Frequency control 21 Depress the Stereo Mono Bridge switch Mono Bridge position and connect the system as follows Biamp with a HIGH FREQ Second Amp CABINET S POWER AMP SVP 1500 F Low FREQ CABINET S Connect a shielded cable from the SVT 4 PRO s Biamp High Output jack to the Input jack of the High Freq
19. extend BER the frequency response of the OUT cabinet being used to com l pensate for room acoustics or OUT O 10 to act like a second channel Setting 5 R amp B Groove MIDRANGE FREQUENCY 12345 Setting 6 B Downright Upright MIDRANGE FREQUENCY Done Right LILLI 2 0 10 Rack Mounting When mounting the SVT 4 PRO into a rack the four bottom feet should be removed to maintain the three rack space height of the ampli fier Be sure to keep the feet and their attachment bolts for future use If the feet are reinstalled never use screws which will protrude farther into the amplifier than the original hardware The rack must be a high quality enclosure capable of securely supporting the weight of the amplifier Tighten the mounting screws securely through the amplifier s face plate into the rack rails Check the rack and mounting screws occasionally to ensure a continual ly safe and secure installation 14 SVT 4 PRO Bass Amplifier Troubleshooting In the unlikely event that your SVT 4 PRO should malfunction take a few minutes to troubleshoot it before you call for service You can save yourself time and money by doing it yourself and often the cure for the problem is something quite simple NO SOUND POOR SOUND Check bass cables POOR SOUND Check speaker s SPEAKER S OK POOR SOUND LEDs LIGHT LEDs DONT LIGHT Check AC outlet OUTLET OK NO POWER Check a
20. fectos se juntan creando una se al de efectos monof nica Los jacks de l nea afuera del Canal B 40 41 proveen una se al de preamplificidor monof nica seca no se aplica ning n efecto externo a esta se al 49 TUNER OUT CAUTION ro REDUCE THE RISK OF FIRE REPLACE FUSE WITH SAME TYPE AND RATING ATTENTION UTILISER UN FUSIBLE DE FOOTSWITCH GRAPHIC EQ MUTE olo O O O g 38 13 43 INTERRUPTOR PRE POST LINEA AFUERA La se al en los jacks de L nea Afuera se pueden poner en posici n ya sea Pre o Post EQ usando este interruptor Con el interruptor en la posci n de AFUERA la se al en los jacks ser Pre EQ Esta es un salida directa que no ser afectada por ninguna posici n del EQ o del refuerzo Con el interruptor en la posici n de ADEN TRO la se al es Post EQ y se controla y modifica mediante los controles de tono el EQ Gr fico el control de nivel Maestro el circuito de efectos y el interruptor Est reo Monof nico L nea Afuera 42 46 RETORNO IZQUIERDO B DEL CIRCUITO DE EFECTOS Cuando use efectos estereof nicos conecte la salida del canal izquierdo del efecto a este jack No use este jack con efectos monofonicos 47 RETORNO DERECHO A MONOFONICO DEL CIRCUITO DE EFECTOS Cuando use efectos estereofonicos conecte la Salida del canal derecho del efecto a este jack Cuando use efectos monofonicos conecte la salida del efecto a este
21. his controls the gain of the preamp Adjust this control until the Peak LED 6 flashes on strong signal peaks but is not illuminated constantly while playing To obtain the best signal to noise ratio set the Gain control to the highest possible setting and adjust the Master 19 to obtain the desired volume level 6 PEAK LED This LED will illuminate when the preamp sig nal is nearing its clipping level indicating optimum gain set ting 7 COMPRESSION This controls the amount of signal com pression At the fully counter clockwise position there is no compression at fully clockwise the compression ratio is 10 1 33Hz 80Hz 150Hz 300Hz 600Hz 900 GAIN COMPRESSION BASS 1 0 10 0 10 MIDRANGE FR ULTRA HI 0 02 PEAK JLTRA LO The sonic effect of compression is reduced dynamics increase sustain and a more consistent output level regard less of how light or hard the strings are played The com pressor is very transparent that is there is very little effect on the tone of your instrument 8 ULTRA HIGH This switch when depressed increases the high frequency output by 6dB at 5kHz 9 ULTRA LOW This switch when depressed greatly enhances the amount of low end bass tones which you can feel and hear especially the low E and low B strings 5 string basses 10 BASS This control allows for 12dB of cut or boost at 50Hz The low frequency output is flat at the center position 11 MIDRANGE This cont
22. ine tune the biamp abilities of the amplifier page 5 13 e 5 POSITION MIDRANGE SELECTOR Take your pick from the five center fre quency points available to get just the right midrange voice page 4 e COMPRESSION CONTROL Allows you to control the dynamics of the tonal response characteristics from the power amp from punchy to compressed page 4 e 9 BAND GRAPHIC EQ Use as a second channel for bass solos or to shape your sound to your own exacting standards an independent level control lets you adjust the Graphic EQ volume switchable at front panel or with a footswitch page 5 e TUNER OUT JACKS Two jacks one on the front panel one on the rear panel allows connection to an electronic tuner and provides an always live monitor feed even when the output is muted page 4 9 e SPEAKON JACKS For more reliable connections at higher outputs and for mono bridged connections in addition to 1 4 speaker out jacks page 8 e TRANSFORMER BALANCED LINE OUTPUTS Independent level control two transformer balanced XLR and two balanced unbalanced 1 4 output jacks switch able stereo or mono one wet one dry signal pre or post EQ page 8 9 e STEREO EFFECTS LOOP Connect your effects here for increased intensity and quieter operation page 9 can be bypassed with front panel switch or footswitch e POWER AMP IN PREAMP OUT Two separate loops one for each channel a sep arate preamp may be connected
23. jack 48 ENVIO DEL CIRCUITO DE EFECTOS Cuando use un procesador de senales externo conecte la SALIDA del efecto a este jack usando un cable blindado de instrumentos a fin de enviar la senal post EQ al efecto para su procesamiento 49 SALIDA SINTONIZADOR Este jack se provee para conec tarlo a un sintonizador electronico y siempre se encuentra vivo aun cuando se encuentre activado el interruptor Mudo 3 lo que permite sintonizar en silencio lo mismo que una ali mentaci n monitor que se mantiene caliente a n cuando la mez cla de la casa est muda IMPORTANTE Esta unidad utiliza un ventilador interno para aire forzado que refresca Las ranuras para el ventaillation en el trasero y lados no se deben obstruir cuando se usa este amplificador Cu ndo el amplificador se monta en un anaquel suficiente espacio para la cir culaci n a rea apropiada se debe proporcionar El anaquel se debe construir y debe ser posicionado para permitir el flujo apropiado de aire El escape de la palabrer a debe fluir lejos del anaquel siempre 11 SVT 4 PRO Bass Amplifier Connections In the example shown below the SVT 4 PROS two internal power amplifiers are bridged together to produce maximum output power Depress the Stereo Mono Bridge switch Mono Bridged position and connect the system as follows SVT 4 PRO F3 Sem AA ae E FULL RANGE Mono 2 Bridged ats HII Ug 1 Connect a heavy d
24. l interruptor Mudo 3 lo que permite sintoniar en silencio lo mismo que una alimentaci n monitor que se mantiene caliente a n cuando la mezcla de la casa se encuentre muda Este jack tambi n se puede usar como entrada de 6dB cuando no se encuentre conectado a un sintonizador 3 MUDO Use este interruptor para silenciar todas las salidas excepto las Salidas del Sintonizador El interruptor de pie tam bi n puede controlar el silencio si el interruptor de Mudo en el tablero delantero se deja en la posici n de salida El inter ruptor del tablero delantero a n sigue activo cuando el inter ruptor de pie est conectado Esto es excelente para sintonizar su bajo con un sintonizador el ctrico sin tener que ajustar ning n nivel para disminuir el volumen de su casa 4 15dB Este interruptor cuando se encuentre ADENTRO atenuar en 150B la se al de entrada Si su bajo tiene circuitos electr nicos activos usted tal vez quiera usar este interruptor 5 GANANCIA Esto controla la ganancia del preamplificador Ajuste el control hasta el diodo LED de picos 6 se ilumin con un se al de fuersa Para btener la mejor relaci n de se al a ruido ponga el control de Ganancia a su posici n m s alta posible y ajuste el Maestro 19 al nivel de volumen deseado 6 DIODO LED DE PICOS Este LED se iluminar cuando el se al de preamplificaci n est cerca del nivel de aplanamien to clipping lo que indicar a un
25. mp controls check for signal from bass SOUND OK Check amp s power cord circuit breaker power switch SPEAKER S DEFECTIVE Listen for hum Replace speaker s POOR SOUND Check speaker Unplug bass touch tip of cable NO CHANGE Replace cable SEE BELOW SEE BELOW If the problem isn t covered above or if the steps lead you here then contact your Ampeg dealer for service informa tion Also you should refer your amp for servicing if it gets dropped has liquid spilled into it or sustains damage to its power cord see page 2 System Block Diagram REAR PEAK TUNER LED ULTRA ULTRA FRONT OUT BRIGHT HIGH LOW TUNER l Le OUT TUBE GAIN STAGE FOOTSWITCH 3 COMPRESSION INPUT l o aes GAIN 15dBPAD MUTE e COMPRESSION FOOTSWITCH BAL UNBAL LINE OUT B BAL POST LINE OUT PRE POST BAL UNBAL OUT LINE OUT SPEAKON A MONO FREQ BAL CK O LINE OUT Epa l OJ LINE MN BRIDGE MONO STEREO y OUT A MONO MONO STEREO MON POST AMONO a m I STEREO l l MONO EFFECTS SEND E MONO l 1 STEREO EFFECTS BRIDGED RETURN i LEFT B i R l l EFFECTS l RETURN Ml RIGHT A MONO POWER L BRIDGE MONO l m IN PIRN i B J JACK STEREO S PREAMP OUT A MONO FOOTSWITCH 15 SVT 4 PRO Bass Amplifier Technical Specifications OUTPUT POWER RATING
26. nal effects are applied to this signal The Effects Loop Left and Right returns are summed together creating a mono effects signal The Channel B line out jacks 40 41 supply a dry mono preamp signal no external effects are applied to this signal FOOTSWITCH GRAPHIC EQ MUTE 49 OUT 38 El 43 LINE OUT PRE POST SWITCH The signal at the Line Out jacks can be set to either Pre or Post EQ with this switch With the switch in the OUT position the signal at the jacks will be Pre EQ This is a direct output not affected by any EQ or boost settings With the switch depressed the sig nal is Post EQ and is controlled and modified by the tone controls Graphic EQ the Master level control the effects loop and the Line Out Stereo Mono switch 42 46 EFFECTS LOOP RETURN LEFT B When using stereo effects connect the effect s left channel output into this jack Do not use this jack with mono effects 47 EFFECTS LOOP RETURN RIGHT A MONO When using stereo effects connect the effect s right channel output into this jack When using mono effects connect the effect s output into this jack 48 EFFECTS LOOP SEND When using an external signal processor connect the INPUT of the effect to this jack using a shielded instrument cable to send the post EQ signal to the effect for processing NOTE The effects loop 46 47 may be bypassed by the front panel switch 17 or by the use of a footswitch 49 TUNER OUT
27. ower cord into this socket until it is fully seated Plug the male end of the cord into a grounded AC outlet DO NOT DEFEAT THE GROUND PRONG OF THE AC PLUG 30 AC OUTLET Domestic units only This unswitched outlet lets you connect any AC powered device such as an effects unit or an electronic tuner up to a maximum of 300 watts The jack is hot whenever the amplifier is plugged into a live AC outlet regardless of the setting of the amplifier s Power switch 31 SPEAKER OUTPUTS The Speakon Jacks Use of these heavy duty connectors is recommended when playing at full output levels Connect the amplifier to your speaker cabinet s using heavy gauge speaker cables terminated with the appropriate connectors See text to left of jacks for pinout information The 1 4 Jacks These mono 1 4 jacks two per channel wired in parallel offer you a convenient method of connect ing the amplifier to your speaker s using cables terminated with 1 4 plugs Whenever playing at full output levels it is recommended that you use the Speakor jacks m AC LINE IN SPEAKER OUTP 1600 WATTS 4 OHMS M 2 OHMS MINIMUM LOAD PER 20 29 31 32 STEREO MONO BRIDGE SWITCH This switch sets the operating mode of the amplifier In the out position the amplifier is in the Stereo Mode with the switch in the in position the amplifier is in the Mono Bridged Mode 33 35 POWER AMP INPUTS These jacks connect directly to the inte
28. rnal power amp for use with external preamps When using external sources connect the OUTPUT of the sources to these jacks using shielded instrument cables to feed the signals into the power amp sections The internal signal is disconnected when a plug is inserted In the Mono Mode Channel A Input In the Biamp Mode Channel A Low frequency Input Channel B High frequency Input 34 36 PREAMP OUTPUTS These jacks are direct preamp outputs for use with external power amplifiers mixing boards external effects etc Connect these jacks to the input jacks of an external amp using shielded instrument cables 37 EFFECTS BYPASS FOOTSWITCH Connect a single button footswitch to this jack for remote control of the Effects Loop Using a footswitch overrides the front panel Effects Bypass switch 38 GRAPHIC EQ MUTE FOOTSWITCH Connect a two button footswitch to this jack for remote Mute and EQ On Off control On the stereo 1 4 plug the tip controls Mute and the ring controls EQ On Off The EQ footswitch overrides the front panel switch and the Mute function is available from either location 39 BIAMP HIGH LOW OUTPUTS When used in the biamp mode the Biamp High Out jack connects to the high fre quency power amplifier and the Biamp Low Out jack con nects to the low frequency power amp See pages 12 and 13 Speakor is a registered trademark of Neutrik AG SVT 4 PRO Bass Amplifier 41 42 43 44 45 46 47 48 EFFECTS
29. rol allows for 15dB of cut or boost at the center frequency selected by the Frequency control see 12 The midrange output is flat at the center position 12 FREQUENCY This control allows you to select the cen ter frequency for the midrange control 11 giving you a choice of five voices for the midrange The numbers corre spond to the following center frequencies as indicated 1 220Hz 2 450Hz 3 800Hz 4 1 6kHz 5 3kHz 13 TREBLE This control allows for 19dB of cut or 14dB of boost at 5kHz The high frequency output is flat at the center position 14 BRIGHT This switch when depressed adds a more live ly top end response to the input signal 900Hz 2kHz 5kHz 8kHz LEVEL ACTIVE FREQUENCY TREBLE LINE OUT LEVEL MASTER 12345 EFFECTS BRIGHT BYPASS 300Hz FREQUENCY BALANCE FLAT a 4 yr T 6 el 0 0 50Hz GRAPHIC LIMIT LIMIT ze 1kHz LO HI DEFEAT CROSSOVER De Lusso eLLL Eebo Deu mn eee 12 13 14 15 16 17 18 19 20 21 15 GRAPHIC EQ This switch when depressed enables the 9 band Graphic EQ see 23 and 24 The sound of your bass will only be affected by the settings of the EQ slider con trols when this switch is depressed or when a footswitch is pressed A footswitch will override the front panel switch Please refer to 38 rear panel 16 LINE OUT LEVEL This controls the strength of the sig nal at the Line Out jacks 240 41 44 45 rear panel 17 EFFECTS BYPASS This switch when
30. siado suave deslice el control de Nivel hacia arriba si est demasiado fuerte traiga el control hacia abajo 25 DIODO LED DE PRENDIDO Este LED brillar con un color verde cuando el interruptor de Energia 27 se encuen tre PRENDIDO 26 DIODO LED ACTIVO Este se iluminar cuando el EQ se encuentre prendido 27 ENERGIA Este interruptor de servicio pesado tipo vaiv n aplica la energ a el ctrica al amplificador el amplificador se PRENDE en la posici n hacia arriba y se APAGA en la posi ci n hacia abajo SVT 4 PRO Bass Am lifier The Rear Panel 30 39 40 e J M AC OUTLET 300 WATTS MAX MONO BRIDGE 1 HOT 2 RETURN len SVT IV PRO BIAMP 1 LOW HOT 1 LOW RETURN HIGH HOT 2 HIGH RETURN MADE IN THE U S A BY SLM ELECTRONICS 1400 FERGUSON AVENUE ST LOUIS MO 63133 e f 9 28 CIRCUIT BREAKER The SVT 4 PRO employs an AC line circuit breaker to help protect against damages due to excessive current demands If the amplifier stops working check the circuit breaker NOTE When the circuit breaker opens the button will be protruding and showing a contrasting color You can reset the circuit breaker by pushing it in until it latches The breaker must cool down for a short time before the button will latch If the circuit breaker opens repeatedly with no signal input have the amplifier checked by a qualified service person 29 AC LINE IN Firmly insert the supplied AC p
31. te a la derecha a la frecuencia central que se haya seleccionado en el control de Frecuencias v ase 12 La salida del rango mediano est plana en la posici n central 12 FRECUENCIA Le permite seleccionar la frecuencia cen tral para el control del rango mediano lo que le da la opci n de cinco voces para el rango mediano Las frecuencias corre spondientes son 1 220Hz 2 450Hz 3 800Hz 4 1 6kHz 5 3kHZ 13 AGUDOS Es el control primordial para las frecuencias altas Permite 19dB de recorte totalmente a la izquierda 14dB de refuerzo totalmente a la derecha a 5kHz La salida de frecuencias altas es plana en la posici n central 14 BRILLANTE Este interruptor cuando se encuentre ADENTRO a ade a la se al de entrada una respuesta m s viva en la parte alta Usted puede experimentar el uso de difer entes posiciones del EQ con este interruptor 00Hz 2kHz 5kHz 8kHz LEVEL ACTIVE FREQUENCY TREBLE LINE OUT LEVEL MASTER BRIGHT 10 0 50Hz 0 GRAPHIC LIMIT LIMIT ze uo FHEQUENCY 12345 300Hz 9 9 0 TkHz LO HI DEFEAT CROSSOVER BALANCE FLAT Y 12 13 14 15 16 17 18 19 20 21 15 EQ GRAFICO Este interruptor habilita al EQ Gr fico de 9 bandas v ase 23 8 24 El sonido de su bajo s lo se ver afectado por los ajustes en los controles deslizantes cursores del EQ cuando este interruptor se encuentre hacia ADENTRO se haya oprimido el interruptor de pie El control del interrup tor d
32. to the Power Amp In jack and the Preamp Out jack may be connected to a slave amp page 8 e FOOTSWITCH CONTROL Use a footswitch to bypass the Effects Loop and to activate the Graphic EQ and the Mute feature page 8 e CIRCUIT BREAKER PROTECTION A heavy duty resettable circuit breaker pro vides protection against fault conditions page 8 Speakor is a registered trademark of Neutrik AG 1 INPUT Connect your bass guitar here using a shielded instrument cable 2 TUNER OUT This jack is provided for connection to an electronic tuner and is always live even when the Mute switch 3 is engaged This allows for silent tuning as well as providing a monitor feed which stays hot even when the house mix is muted In addition this jack may also be used as a 6dB input when not connected to a tuner 3 MUTE This switch when depressed mutes all outputs except the Tuner Outs This is excellent for tuning your bass with an electric tuner without having to adjust any levels to turn down your house volume A footswitch can also be used to control muting as long as the Mute switch on the front panel is left in the out position The front panel switch is still active with the footswitch connected Please refer to 38 rear panel 4 15dB This switch when depressed will attenuate the input signal by 15dB If your bass has active pickups depress this switch to better accommodate its output signal level 5 GAIN T
33. total y el limitador evita que distor sione la se al de salida 21 FRECUENCIA DE CRUCE Esto fija el punto de cruce entre las salidas de Biamplificador Alto y Biamplificador Bajo cuando se use el amplificador en el modo de biamplificaci n V ase la p gina 13 22 22 EQUILIBRIO DE CRUCE Esto ajusta el nivel relativo entre las se ales de frecuencias altas y bajas de biamplificaci n cuando se use el amplificador en el modo de biamplificaci n 23 EQ GRAFICO DE 9 BANDAS Estos controles deslizantes cursores le permiten ajustar las frecuencias de salida que se muestran abajo cada control La posici n central de cada con trol est plana el deslizamiento del control hacia arriba incre mentar el nivel de salida de aquella frecuencia el desliza miento del control hacia abajo lo reducir El EQ Gr fico se puede usar de dos maneras 1 Para afinar su sonido hacer peque os ajustes en las frecuencias deseadas y dejar prendido el EQ durante toda la sesi n Esto es muy bueno para adap tarse a variaciones en la ac stica del sal n cuando vaya de un club a otro etc 2 Para conseguir un sonido diferente por completo hacer ajustes m s grandes y s lo activar el EQ cuando usted quiera un sonido de segundo canal como por ejemplo durante solos de bajo 24 NIVEL Este es el control del volumen de la salida para el EQ Gr fico y solamente afecta a la se al cuando el EQ se encuentre activado Si la se al del EQ est dema
34. uency power amplifier Connect a shielded cable from the SVT 4 PRO s Biamp Low output jack to its Power Amp A Mono Bridge Input jack ed bere ds high frequency power amp s Speaker Output jack to the input jack s of the high frequency cabinet s Observe amplifier s minimum oad rating Connect a heavy duty speaker cable terminated with a Speakon connector pin 1 pin 2 from the SVT 4 PRO s Mono Bridge Biamp Output jack to the input Jack of the low frequency speaker cabinet A CON 13 SVT 4 PRO Bass Amplifier Some Suggested Settings Setting 1 Classic Ampeg MIDRANGE FREQUENCY TREBLE Since so many variables 12346 affect the actual sound of any OUT gt system the following settings are NX n offered as starting points to help m you find the exact sounds your playing demands When using the SVT 4PRO please keep in mind the following points Setting 2 Funky Thing MIDRANGE FREQUENCY 12345 The Gain control should be adjusted until the peak LED flashes on strong signals This Nu level will vary depending on your instrument and playing style Setting 3 Ethereal Fretless FREQUENCY e The Compressor control can 12345 be adjusted to control the dynamic response of your l 7 instrument Adjust according to your own preference The Graphic EQ can be used to further fine tune these basic Setting 4 Jaco MIDRANGE FREQUENCY suggested setting to
35. uty speaker cable terminated with a Speakon connector pin 1 pin 2 from the SVT 4 PRO s Mono Bridge Biamp Output jack to the input jack of a speaker cabinet capable of handling the extremely high output power In the example shown below the SVT 4 PROS two internal power amplifiers will each power a set of full range cabinets Set the Stereo Mono Bridge switch OUT Stereo position and connect the system as follows Dual FULL RANGE CABINET S Mono FULL RANGE V CABINET S 1 Connect a speaker cable from the SVT 4 PRO s Power Amp A Speaker Output jack to the input jack s of a set of full range speakers 2 Connect a speaker cable from the SVT 4 PRO s Power Amp B Speaker Output jack to the input jack s of another set of full range speakers In the example shown below the SVT 4 PROS two internal power amplifiers will each power a set of full range cabinets in stereo Set the Stereo Mono Bridge switch OUT Stereo position and connect the system as follows LEFT RIGHT OUT g OUT EFFECTS PROCESSOR o l16 A D a STAGE LEFT E STAGE RIGHT CABINET S 6 6 6 CABINET S Connect a shielded cable from the Effects Send of the SVT 4 PRO to the Input of a Stereo Effects Processor Connect a shielded cable from the Left Output of the Processor to the SVT 4 PRO s Effects Return Left B jack Connect a shielded cable from the Right Output of the Processor to the SVT
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