Ampeg_SVT-4_PRO_Users_Guide电路图.pdf

《Ampeg_SVT-4_PRO_Users_Guide电路图.pdf》由会员分享，可在线阅读，更多相关《Ampeg_SVT-4_PRO_Users_Guide电路图.pdf（16页珍藏版）》请在收音机爱好者资料库上搜索。

1、Owners Guide for the Owners Guide for the Ampeg is Proudly Made in AmericaAmpeg is Proudly Made in America Bass AmplifierBass Amplifier RadioFans.CN 收音机爱 好者资料库 2 Important Safeguards and Precautions: All Ampeg products are designed for continuous safe operation, as long as common sense is used and s

2、teps are taken to help avoid certain problems. Abiding by the following rules can help prevent damage to your amplifier, yourself and oth- ers. 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

3、 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

4、 authorized service center.) NEVER set the amplifier on a support that might give out under its weight. Always keep the total speaker impedance 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, lin

5、t-free cloth to remove dirt and film. Dont 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

6、damage, if the exposure to such levels is prolonged. Such damage is progressive and irreversible! TABLE OF CONTENTS Important Safeguards and Precautions . . . . . . . . . . . . . . .2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Features . . . . . . . . . . .

7、 . . . . . . . . . . . . . . . . . . . . . . . . . . .3 The Front Panel Controls and Their Use (English) . . . . .4,5 The Front Panel Controls and Their Use (Spanish) . . . . .6,7 The Rear Panel (English) . . . . . . . . . . . . . . . . . . . . . . . .8,9 The Rear Panel (Spanish) . . . . . . . . . .

8、 . . . . . . . . . . . .10,11 Connections:Mono Bridged . . . . . . . . . . . . . . . . . . . . .12 Dual Mono . . . . . . . . . . . . . . . . . . . . . . . .12 Stereo . . . . . . . . . . . . . . . . . . . . . . . . . . .12 Biamp, Full Range and Lows . . . . . . . . . .13 Biamp, Highs and Lows . . . .

9、 . . . . . . . . . .13 Biamp With Secondary Amplifier . . . . . . . .13 Some Suggested Settings . . . . . . . . . . . . . . . . . . . . . . . .14 Rack Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10、. .15 System Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . .15 Technical Specifications . . . . . . . . . . . . . . . . . . .back cover SVT-4 PRO Bass Amplifier IMPORTANT SAFETY INSTRUCTIONS READ, FOLLOW, HEED, AND KEEP ALL INSTRUCTIONS AND WARNINGS. DO NOT OPERATE NEAR ANY HEAT SO

11、URCE 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 WI

12、TH 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. PROTECT THE POWER CORD FROM DAMAGE DUE TO

13、 BEING WALKED ON, PINCHED, OR STRAINED. UNPLUG THE APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED FOR LONG PERIODS OF TIME. ONLY USE ATTACHMENTS, ACCESSORIES, STANDS, OR BRACKETS SPECIFIED BY THE MANUFACTURER FOR SAFE OPERATION AND TO AVOID INJURY. WARNING: TO REDUCE THE RISK OF ELECTRIC SHOCK OR

14、FIRE, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. 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

15、PROTECTION IS RECOMMENDED IF UNIT IS OPERATED AT HIGH VOLUME. CAUTION RISK OF ELECTRIC SHOCK DO NOT OPEN WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE. TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER-SERVICEABLE PARTS INSID

16、E. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. PRECAUCION RIESGO DE CORRIENTAZO NO ABRA PRECAUCION: PARA REDUCIR EL RIESGO DE INCENDIOS O DESCARGAS ELECTRICAS, NO PER- MITA QUE ESTE APARATO QUEDE EXPUESTO A LA LLUVIA O LA HUMEDAD. PARA DISMINUOIR EL RIESGO DE CORRIENTAZO. NO ABRA LA CUBIERTA. NO

17、 HAY PIEZAS ADENTRO QUE EL USARIO PUEDO REPARAR DEJE TODO MANTENIMIENTO A LOS TECHNICOS CALIFICADOS. ATTENTION RISQUE DELECTROCUTION NE PAS OUVRIR ATTENTION: PROTGEZ CET APPAREIL DE LA PLUIE ET DE LHUMIDIT AFIN DVITER TOUT RISQUE DINCENDIE OU DLECTROCUTION. POUR REDUIRE DELECTROCUTION NE PAS ENLEVER

18、 LE COUVERCLE. AUCUNE PIECE INTERNE NEST REPRABLE PAR LUTILISATEUR. POUR TOUTE REPARATION, SADRESSER A UN TECHNICIEN QUALIFIE. IT IS NECESSARY FOR THE USER TO REFER TO THE INSTRUCTION MANUAL “ES NECESARIO QUE EL USUARIO SE REFIERA AL MANUAL DE INSTRUCCIONES.” REFERREZ-VOUS AU MANUAL DUTILISATION EXP

19、LANATION OF GRAPHICAL SYMBOLS: EXPLICACION DE SIMBOLOS GRAFICOS: EXPLICATION DES SYMBLES GRAPHIQUES: DANGEROUS VOLTAGE “VOLTAJE PELIGROSO” DANGER HAUTE TENSION = RadioFans.CN 收音机爱 好者资料库 3 An Introduction to your new Ampeg SVT-4 PRO Bass Amplifier The harmonically rich sound and legendary performance

20、 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 wi

21、thin the pages of this owners guide. We recommend that you go over them before you use the amplifier. Features In the world of high performance bass amps, Ampegs SVT amplifiers stand alone. In true Ampeg tradi- tion, the SVT-4 PRO offers you more power, performance and flexibility than any other bas

22、s amplifier in its class. Below are some of the outstanding features of your new amplifier - features which set it apart from the competition! DUAL SEPARATE POWER AMPLIFIERS: Operate in true stereo or mono bridged mode for even greater output power (page 8,12) BIAMP CAPABLE: Adjustable crossover fre

23、quency control and low-to-high fre- quency balance control allow you to fine tune the biamp abilities of the amplifier (page 5,13) 5-POSITION MIDRANGE SELECTOR: Take your pick from the five center fre- quency points available to get just the right midrange voice (page 4) COMPRESSION CONTROL: Allows

24、you to control the dynamics of the tonal response characteristics from the power amp, from punchy to compressed (page 4) 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 vo

25、lume - switchable at front panel or with a footswitch (page 5). 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) SPEAKONJACKS: For more reliable con

26、nections at higher outputs and for mono bridged connections (in addition to 1/4” speaker out jacks) (page 8) 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” s

27、ignal), pre- or post-EQ (page 8,9) STEREO EFFECTS LOOP: Connect your effects here for increased intensity and quieter operation (page 9) - can be bypassed with front panel switch or footswitch. POWER AMP IN/PREAMP OUT: Two separate loops, one for each channel: a sep- arate preamp may be connected to

28、 the Power Amp In jack, and the Preamp Out jack may be connected to a slave amp (page 8) FOOTSWITCH CONTROL: Use a footswitch to bypass the Effects Loop, and to activate the Graphic EQ and the Mute feature (page 8) CIRCUIT BREAKER PROTECTION: A heavy duty resettable circuit breaker pro- vides protec

29、tion against fault conditions (page 8) Speakonis a registered trademark of Neutrik AG. SVT-4 PRO Bass Amplifier RadioFans.CN 收音机爱 好者资料库 4 The Front Panel Controls and Their Use SVT-4 PRO Bass Amplifier 1256710113489 23 1. INPUT: Connect your bass guitar here using a shielded instrument cable. 2. TUN

30、ER 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

31、 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

32、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

33、this switch to better accommodate its output signal level. 5. GAIN: This 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 th

34、e 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 c

35、ounter clockwise position there is no compression; at fully clockwise the compression ratio is 10:1. 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

36、 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 t

37、he 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 control allows for 15dB of cut or boost at the center frequency selected by the Frequency control (see #12). The m

38、idrange 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

39、=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. 5 SVT-4 PRO Bass Amplifier 121316141519212

40、2201718 242725 26 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 fron

41、t 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 (#40,41,44,45, rear panel). 17. EFFECTS BYPASS: This switch, when depressed, bypasses the Effects Loop. (A footswitch will override the front panel switch. Please re

42、fer to #38, rear panel.) 18. LIMIT DEFEAT: The SVT-4 PRO employs internal limiter circuits to help keep the power amplifiers 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

43、 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

44、 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 amplifiers output signal clean. This indicates that the amplifier is nearing full

45、 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

46、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 the frequency indicated below each con- trol. The center position of each control is flat: sliding the con- trol upward will increase the output

47、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 acoust

48、ics 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

49、 engaged. If the EQd signal is too soft, slide the Level control up; if its 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. 6 The Front Panel Controls and Their Use SPANISH TRANSLATIONS SVT-4 PRO Bass Amplifier 1256710113489 23 1.