Ampeg SVT-8 User's Manual
Contents
1. User s Guide for the SYI PRO a 4 a Aa A m am nd TERES ow INPUT SEED Gam TM EA ar DRA FREQUENCY E eae a CO ae o Vo I So O i 10 ial 12345 gt SVT 8 PRO Bass Amplifier TABLE OF CONTENTS Introduction Features The Front Panel The Rear Panel Some Suggested Settings Rack Mounting Troubleshooting System Block Diagram Technical Specifications IMPORTANT SAFETY INSTRUCTIONS Read these instructions Keep these instructions Heed all warnings Follow all instructions Do not use this apparatus near water Clean only with a dry cloth 7 Do not block any ventilation openings Install in accordance with the manufacturer s instructions 8 Do not install near any heat sources such as radiators heat registers stoves or other apparatus including amplifiers that produce heat 9 Do not defeat the safety purpose of the polarized or grounding type plug A polarized plug has two blades with one wider than the other A grounding type plug has two blades and a third grounding prong The wide blade or the third prong are provided for your Safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularly at plugs convenience receptacles and the point where they exit from the apparatus 11 Only use attachments2. it gets dropped has liquid spilled into it or sustains damage to its power cord see page 2 Regular maintenance and cleaning should be performed on a routine basis to prolong the ampli fier s useful life System Block Diagram TRANSFORMER BALANCED LINE OUTPUT a cm om om a PRE st Aaaa TUNER SY ST MUTE OUTPUT P PEAK GND LIFT po PAD GAIN l i P a P m P PREAMP MUTE OUT MASTER o e e e ULTRA ULTRA BASS TREBLE MP LOW HIGH SY oy EFFECTS LOOP POWER Ul REDUCTIC DRIVE POWER PULL ON SVT 8 PRO Bass Amplifier Technical Specifications OUTPUT POWER RATING 1300 Watts RMS 4 ohm load 120VAC 5 THD 2500 Watts RMS 2 ohm load 120VAC 5 THD TONE CONTROL RANGE ULTRA LOW 1 off 2 3dB 30Hz 3 3dB 200Hz 4 20dB 600Hz 5 9dB 30Hz ULTRA HIGH 16dB 8kHz BRIGHT 6dB 3kHz BASS 17dB 13dB 20Hz MID FREQ 20dB 220Hz 450Hz 800Hz 1 6kHz or 3kHz TREBLE 15dB 20dB 7kHz GAIN 74dB SIGNAL TO NOISE RATIO 80dB typical TUBE COMPLEMENT 2 12AX7 1 12AU7 POWER REQUIREMENTS 100 240VAC 50 60Hz 380W SIZE AND WEIGHT 19 17 4 W x 4 H wifeet x 18 D 23 Ibs WIN ampeg com ay Designed by Ampeg in the USA 2008 LOUD Technologies Inc e 16220 Wood Red Rd NE Woodinville WA 98072 USA nae Ampeg is a registered trademark of LOUD Technologies Inc P N SW0875 FOO 09 10
3. VT 8 PRO Bass Amplifier An Introduction to your new Ampeg SVT 8 PRO Bass Amplifier The harmonically rich sound and legendary performance of the AMPEG SVT are redefined in the SVT 8 PRO This versatile and powerful bass amplifier delivers up to 2500 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 8 PRO are covered in detail within the pages of this user 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 8 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 12DB SWITCH A switchable input pad which optimizes the input signal level for use with basses with active electronics or very hot pickups e MUTE SWITCH TUNER OUT JACK Allows you to tune your bass without hearing it through the amplifier e 5 POSITION ULTRA LOW SWITCH Five different settings for the Ultra Low pro vide the ultimate in bottom end response e ULTRA HIGH AND BRIGHT SWITCHES Allows you to tailor your high frequency response in many different ways at the touch of a button e 5 POSITION MIDRANGE SELECTOR Choose from the five center frequency poin
4. accessories specified by the manufacturer 12 Use only with a cart stand tripod bracket or PORTABLE CART table specified by the manufacturer or sold with the apparatus When a cart is used use caution when NY moving the cart apparatus combination to avoid injury A from tip over 13 Unplug this apparatus during lightning storms or when unused for long periods of time 14 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the apparatus the apparatus has been exposed to rain or moisture does not operate normally or has been dropped 15 Please keep the unit in a good ventilation environment 16 WARNING To reduce the risk of fire or electric shock do not expose this apparatus to rain or moisture The apparatus shall not be exposed to dripping or splashing and that objects filled with liquids such as vases shall not be placed on apparatus OORA WDM Re 17 WARNING For the terminals marked with a symbol of hr may be of sufficient magnitude to constitute a risk of electric shock The external wiring connected to the terminals requires installation by an instructed person or the used of ready made leads or cords 18 WARNING The appliance coupler is used as disconnect device the disconnect device shall remain readily operable 19 This apparatus is
5. attenuation is needed 3 MUTE This switch when depressed mutes all outputs except the Tuner Out 24 rear panel This allows you to use an electronic tuner without having to adjust any levels or turn down your house sound A footswitch may be used to control the mute function as long as this switch is in the out position 4 GAIN This controls the gain of the preamp Adjust this control until the Peak LED 5 flickers on strong signal peaks but is not illuminated con stantly while playing 5 PEAK This LED illuminates when the signal level into the preamp or power amp nears clip ping Adjust the Gain control 4 until a strong signal from your instrument causes this LED to flicker with the Master control 16 set low NOTE If the LED flickers frequently with the Gain at a low setting use the 12dB switch 2 to attenuate the input signal and readjust the Gain 6 ULTRA LOW Use this five position rotary switch to optimize the low end response as fol lows 1 Off flat low frequency response 2 Sub Cut reduces frequencies below the bass range to protect your speakers 3 Low Cut Classic provides a low cut equal to our original SVT Classic amplifier 8 9 10 11 12 13 14 4 Ultra Low Classic contours the sound to emphasize the low end just like our original SVT amplifier 5 Ultra Low Modern provides a substantial low end boost 7 ULTRA HIGH This switch when depressed adds about a 16dB boos
6. face plate into the rack rails Check the rack and mounting screws occasionally to ensure a continual ly safe and secure installation Additional rack ears are provided on the rear of the amplifier for connection to an additional support brack et It is highly recommended that this additional support be used when rack mounting the amplifier SVT 8 PRO Bass Amplifier Troubleshooting In the unlikely event that your SVT 8 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 POOR SOUND Check bass cables POOR SOUND Check speaker s NO SOUND LEDs LIGHT LEDs DON T LIGHT Check amp controls check Check AC outlet for signal from bass OUTLET OK NO POWER NO SOUND SOUND OK Check power cord fuse Check house fusebox circuit breaker power switch or circuit breaker NO HUM SPEAKER S OK POOR SOUND SPEAKER S DEFECTIVE Replace speaker s poek an Unplug bass POOR SOUND touch tip of cable NO CHANGE LOUD HUM Replace cable Check inst pickup NO CHANGE SOUND OK SEE BELOW Check speaker 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
7. for professional and commercial use only CAUTION DO NOT OPEN AVIS RISQUE DE CHOC ELECTRIQUE 20 This lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of non insulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock WARNING To reduce the risk of electric shock do not remove cover or back as there are no user serviceable parts inside Refer servicing to qualified personnel The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and mainte nance instructions in the literature accompanying the appliance 21 The apparatus should be connected to a mains socket outlet with a protective earthing connection 22 Correct Disposal of this product This marking indicates that this product should not be disposed with other household wastes throughout the EU To prevent possible harm to the environment or human health from uncontrolled waste disposal recycle it 23 No naked flame sources such as lighted candles should be placed on the apparatus 24 Attention should be drawn to environmental aspects of battery disposal 25 WARNING To reduce the risk of damage do not set the amplifier on the feet of the rear panel It is unstable and could easily tip over Use the feet on the bottom of the amplifier instead S
8. ion 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 lifier Ampeg Rock v ULTRA LOW ULTRA HIGH MIDRANGE FREQUENCY TREBLE DRIVE PULL ON a PEAK D o e 4 o 10 12345 fo POWER REDUCTION ADJUST UNTIL PEAK LED FLASHES PULL SET AS NEEDED ULTRA LOW ULTRA HIGH MIDRANGE FREQUENCY TREBLE DRIVE PULL ON g io POWER REDUCTION ADJUST UNTIL PEAK LED FLASHES Country ULTRA LOW ULTRA HIGH MIDRANGE FREQUENCY TREBLE DRIVE PULL ON g fo POWER REDUCTION ADJUST UNTIL PEAK LED FLASHES Funk GAIN ULTRA LOW ULTRA HIGH MIDRANGE FREQUENCY TREBLE DRIVE PULL ON s 4 ga 12345 o 10 POWER REDUCTION ADJUST UNTIL PEAK LED FLASHES Funk Pop p ng GAIN ULTRA LOW ULTRA HIGH MIDRANGE FREQUENCY TREBLE DRIVE PULL ON e PEAK amp ON e o 179 12345 a to POWER REDUCTION ADJUST UNTIL PEAK LED FLASHES Rack Mounting When mounting the SVT 8 PRO into a rack the four bottom feet should be removed to maintain the two 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
9. mp When using an external source connect the output of the source to this jack by means of a shielded signal cable to feed the signal into the power amp section The internal signal is dis connected when a connector is inserted into this jack FOOT SWITCH 31 SPEAKERS VN PER 2500W 2 OHMS 1300W 4 OHMS CLASS 2 WIRING t 15 of the FC es 28 PREAMP OUT Use this jack to send a sig nal from the internal preamp to an auxiliary power amplifier mixing console monitor sys tem or house PA system The signal at this jack is post EQ 29 EFFECTS LOOP RETURN When using an external signal processor connect the out put of the device to this jack by means of a shielded signal cable 30 EFFECTS LOOP SEND When using an external signal processor connect this jack to the input of the device by means of a shielded signal cable 31 FOOTSWITCH Connect a two button ring tip sleeve footswitch to this jack to control the Power Reduction and the Mute functions Mute tip sleeve Power Reduction ring sleeve NOTE A footswitch may be purchased at your local Ampeg Dealer or ordered directly from LOUD Technologies Inc Be sure to ask for model AFP2 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 circulat
10. plifier 17 LIMIT The SVT 8 PRO employs an internal limiter to help prevent overdriving the power amp This LED illuminates when the Limiter is activat ed indicating that the levels are near clipping Reduce the Master control 16 if this LED illu minates continuously while playing 18 FAULT This LED illuminates when faulty con ditions cause the amplifier to protect itself against damages If this LED should illuminate while play ing turn the amplifier off wait ten seconds then turn the amplifier back on If the Fault LED con tinues to illuminate refer the amplifier to a qualified Ampeg service center 19 POWER Use this switch to turn the amplifier on top of the switch depressed and off bottom of the switch depressed The adjacent LED illu minates when the amplifier is turned on PN CAUTION DO NOT OPEN A VI S RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR WARNING TO AVOID THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS EQUIPMENT TO RAIN OR MOISTURE 20 AC LINE IN Firmly insert the supplied AC power cord into this socket until it is fully seat ed Plug the male end of the cord into a grounded AC outlet DO NOT DEFEAT THE GROUND PRONG OF THE AC PLUG 21 BAL OUT This jack supplies a line level signal for connection to a house mixing board recording console or external amplifier The sig nal level at this jack is governed by the Post Pre switch 23 22 GND LIFT Use this switch to lif
11. t the ground connection at the Bal Out jack to help eliminate hum in the Bal Out signal 23 POST PRE The signal at the Bal Out jack 21 can be set to either Pre or Post EQ with this switch With the switch in the OUT position the signal at the jacks is Pre EQ This is a direct output not affected by any EQ or boost settings With the switch depressed the signal is Post EQ and is controlled and modified by the tone controls and the effects loop 24 TUNER OUT This jack is provided for con nection to an electronic tuner and is always live even when the Mute switch 9 is engaged This allows for silent tuning as well as a monitor feed which stays hot even when the house mix is muted gt SVT 8 PRO Bass Amplifier E LIFT a GND TUNER OUT es QQE POWER PREAMP AMP IN OUT RETURN SEND 26 27 28 29 30 25 SPEAKERS These output jacks supply speaker level power to the speaker cabinet The rated power output is 1300 watts rms into 4 ohms or 2500 watts rms into 2 ohms minimum load WARNING Use speaker cables to make the connections Do not use instrument cables as they may overheat Pin 1 hot Pin 1 return 26 CIRCUIT BREAKER The SVT 8 PRO employs an AC line circuit breaker to help pro tect against damages due to excessive current demands If the amplifier stops working check the circuit breaker 27 POWER AMP IN This jack connects an external preamp directly to the power a
12. t to the high frequencies around 8kHz depending on the setting of the Gain control 8 BRIGHT This switch when depressed adds a 6dB boost to the high frequencies at 3kHz 9 BASS Use this control to adjust the low fre quency output level This control provides 17 13 dB at 20Hz 10 MIDRANGE Use this control to adjust the midrange frequency output This control provides 20dB at the frequency selected by the adjacent Frequency control 411 11 FREQUENCY Use this control to select the center frequency for the Midrange control 10 as follows 1 220Hz 2 450Hz 3 800Hz 4 1 6kHz 5 3kHz 12 TREBLE Use this control to adjust the high frequency output level This control provides 18 20dB at 7kHz 13 POWER REDUCTION ON This LED illumi nates when the Power Reduction function is active 15 16 1718 19 14 POWER REDUCTION DRIVE PULL ON This control when engaged determines the sig nal level sent to the simulated tube power amp section This control works in conjuntion with the other preamp controls in determining how hard the power amp is driven The Power Reduction is engaged when this control is pulled out slightly until it clicks 15 POWER REDUCTION POWER This control sets the output level of the simulated tube power amp section This allows you to obtain the desired amount of tube power amp growl at any volume 16 MASTER Use this control to adjust the over all level of the am
13. ts available to get just the right midrange voice e POWER REDUCTION CIRCUIT A simulated tube power amp section allows you to get the desired amount of tube power amp growl at any volume e TRANSFORMER BALANCED LINE OUTPUT Allows you to send a high quality line level signal to the house mixing board a recording console or another amplifi er switchable for pre or post EQ with a switchable ground lift e EFFECTS LOOP Allows for virtually noise free connection for use with you favorite effects e FOOTSWITCH CONTROL Allows hands free remote control over the Mute and Power Reduction features e CIRCUIT BREAKER PROTECTION A heavy duty resettable circuit breaker pro vides protection against fault conditions e SPEAKON SPEAKER OUTPUT JACKS For the ultimate connection and trans mission of power to your speakers e ULTIMATE POWER 1300 watts into 4 ohms 2500 watts into 2 ohms Speakon is a registered trademark of Neutrik AG gt SVT 8 PRO Bass Amplifier ULTRA HIGH o 0 0 0 00 0 L Arrzguez ay SVT 8 PRO BASS MIDRANGE FREQUENCY TREBLE DRIVE PULL ON POWER REDUCTION POWER MASTER LIMIT O 1 INPUT Connect your bass guitar here by means of a shielded signal cable 2 12dB This switch when depressed attenu ates the input signal by 12dB Attenuation allows the Gain control 4 to be used over a larger por tion of its range If clipping is indicated with the Gain way down
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