Peavey Butcher User's Manual
Contents
1. OPERATING GUIDE CAUTION TO PREVENT THE RISK OF FIRE AND SHOCK HAZARD DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE DO NOT REMOVE FROM CASE NO USER SERVICEABLE PARTS INSIDE REFER SERVICING TO QUALIFIED SERVICE PERSONNEL GENERAL DESCRIPTION The Peavey Butcher has been designed to faithfully reproduce the searing crunchy sound sought after by today s demanding hard rock guitarists All controls and functions have been specifically tailored to produce the ultimate in tonality distortion and sustain characteristics The Butcher will deliver 120 watts RMS into load impedances of 4 8or 16 ohms and is capable of driving multiple enclosures for those players wishing to achieve truly overwhelming sound pressure levels Its construction will allow the Butcher to withstand the rigors of use in a night after night touring environment The cabinet is constructed of wood and is covered with the heaviest available 34 0z Tolex Ruggedness is enhanced by huge metal corners and asteel reinforced carrying handle Internally the Butcher features chassis construction of 18 gauge steel massive steel mounted trans formers and the finest components available The all tube circuit utilizes time tested European ECC 83 12AX7A preamp tubes and proven premium STR6L6GC output tubes The Butcher s straightforward design allows for relative simplicity of operation However in order to avoid potentially hazardous or damaging situati2. 0 volt and 240 volt export models BOOSTER OUTPUT The Booster Output jack provides a line level 1V RMS signal for purposes of driving additional power amplifiers Since the Booster Output signal is taken from the output transformer all amplifica tion processing including the tube type power amp is reflected in this signal SYSTEM PRESENCE The Butcher incorporates a System Presence control for adjustment of very high frequency signals 5 kHz and above The System Presence control occurs in the circuit path after the equalization controls it is therefore post EQ Since the System Presence control is active it is capable of boosting high frequency signals and allows fine tuning of tonality particularly when the amplifier is operated in a distorted mode It should be noted that many popular speakers and enclosures are limited in their capability to reproduce certain frequencies In some systems the System Presence control may not yield signifi cant changes in tonality Obviously boosting a certain frequency range will produce no audible result if the speakers cannot reproduce that particular frequency range EQUALIZATION The Butcher features three bands of passive equalization EQ with controls labelled Low Mid and High These controls are traditional in operation and provide a wide range of tonal output Again experimentation with various equalization control settings will determine which combinations yield the best results Si
3. EASURED AT 1kHz WITH THE CONTROLS PRESET AS FOLLOWS Post Gain at 10 Low amp High EQ at 10 Mid EQ at 0 Presence at 0 Nominal Levels are with Pre Gain at 5 Minimum Levels are with Pre Gain at 10 TUBE TYPES Two 12AX7 tubes PREAMP HIGH GAIN INPUT primarily designed as distortion input Impedance Very High Z 1M ohm Nominal Input Level 42 dBV 8 mV RMS Minimum Input Level 54 dBV 2mV RMS Maximum Input Level 6 dBV 0 5V RMS PREAMP LOW GAIN INPUT primarily designed as non distortion input Impedance Very High Z 1M ohm Nominal Input Level 10 dBV 300 mV RMS Minimum Input Level 22 dBV 80 mV RMS Maximum Input Level Unlimited LINE OUTPUT Load Impedance 10K ohms or greater Nominal Output 6 dBV 2V RMS SYSTEM HUM AND NOISE AT NOMINAL INPUT LEVEL 20 Hz to 20 kHz unweighted Greater than 78 dB below rated power EQUALIZATION Special Low Mid and High passive type EQ PRESENCE 6 dB at 5 kHz EXPOSURE TO EXTREMELY HIGH NOISE LEVELS MAY CAUSE A PERMANENT HEARING LOSS INDIVIDUALS VARY CONSIDERABLY IN SUSCEPTIBILITY TO NOISE INDUCED HEARING LOSS BUT NEARLY EVERYONE WILL LOSE SOME HEARING IF EXPOSED TO SUFFICIENTLY INTENSE NOISE FOR A SUFFICIENT TIME THE U S GOVERNMENT S OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION OSHA HAS SPECIFIED THE FOLLOWING PERMISSIBLE NOISE LEVEL EXPOSURES DURATION PER DAY IN HOURS eea _ All safety and operating instructions should be retained for _ Never break off the ground pin on th
4. LINE CORD For your safety the Butcher comes equipped with a three wire line cord and AC plug It is not advisable to remove the ground pin under any circumstances If it is necessary to use the amplifier without proper grounding facilities as when only two wire AC service is available a suitable grounding adapter should be used When the Butcher is used with properly grounded receptacles shock hazard is greatly reduced as are hum and noise FUSE The Butcher s fuse is located within the cap of the fuseholder If the fuse should fail IT MUST BE REPLACED WITH A FUSE OF THE SAME TYPE AND VALUE IN ORDER TO PREVENT DAMAGE TO THE AMPLIFIER AND TO PREVENT VOIDING THE MANUFAC N TURER S WARRANTY If your amplifier repeatedly blows fuses it should be taken to a qualified service center for repair 2H 09 OVA OL JW S asns SLIOA OS2e 30 13 3dAL IWIW 30 3181593 NN Vd B30V 1d WIH BIBANOS d IN 3NN1H1939739 JOHD 30 INDSI4 S AY 3SOdx3 LON 00 3SN LIOA OSZ 3d AL IWYS OHVZVH XOOHS ONY J ld JO ASI JH1 LN3SAAed OL HLA 390V1d38 ONVYZYH NOOHS CNY auld JO NSId WARNING THE FUSE SHOULD ONLY BE REPLACED AFTER THE BUTCHER S LINE NOILNVO CORD HAS BEEN DISCONNECTED FROM THE MAINS POWER SOURCE 3H1 1NJ J d OL JANNOSH3d JDIAWIS A34 VNO OL ONIDIAW3S Y34434 AOISN Slevd JISVZOIAMIS 43S ON 3579 WOd8d JAOW3Y LON OO 3HNLSIOW dO NIVY C1 JONVINddY SIHL SPEAKER JACKS A special output transformer allows the Butcher to deliver its ful
5. e power supply cord For future reference more intormation on grounding write for our free booklet SOUND LEVEL dBA SLOW RESPONSE 90 92 95 97 100 _ This unit should be checked by a qualified service technician if _ Obey all cautions in the operating instructions and on the back of ihe unit Al operating instructions should be followed 5 This product should not be used near water i e a bathtub sink swimming pool wet basement etc _ This product should be located so that its position does not interfere with its proper ventilation It should not be placed flat against a watl or placed in a built in enclosure that will impede the flow of cooling air _ This product should not be placed near a source of heatsuch as a stove heater radiator or another heat producing amplifier Due to our efforts for constant improvement specifications are subject to change without notice Power supply cords should always be handled carefully The power supply cord should be unplugged when the unitis Shock Hazard and Grounding Never walk or place equipment on power supply cords Periodically check cords for cuts or signs of stress especially at the plug and ihe point where the cord exits the unit to be unused for long periods of time Metal parts can be cleaned with a damp rag The vinyl covering used on some units can be cleaned with adamp rag or an ammonia based household cleaner if necessary Th
6. e unit does not operate correctly O The unit has been dropped or the enclosure damaged _ The user should not attempt to service this equipment All service work should be done by a qualified service technician A The power supply cord or plug has been damaged B Anything has fallen or been spilied into the unit PEAVEY ELECTRONICS CORP 711 A Street Meridian MS 39301 U S A Telephone 601 483 5365 Telex 504115 Printed in USA 1985 80300228 10 85
7. l 120 watts RMS into load impedances of 4 8 or 16 ohms Four speaker jacks are provided for convenience in speaker connection If the Butcher will be used with only one speaker enclosure the enclosure should be connected to the jack whose impedance rating listed BELOW the speaker jacks corres ponds to the impedance rating of the enclosure If the Butcher will be used with more than one 16 ohm enclosure the enclosures should be connected to the amplifier according to the listings ABOVE the speaker jacks If the Butcher will be used with two or more enclosures whose individual impedance is not 16 ohms it will be necessary to calculate the total system impedance to ensure correct connection of the enclosures Because of the number of possible configurations which exist a listing of all possibilities is beyond the scope of this operating guide We recommend that you seek reliable advice from a qualified service technician YSN N JGV SW NVIQW3IW NOI YHOdHOS SOINDHLOIN3 AJAY Ja 0 ei 3N AR m D NIN WHO Y NIN WHC 8 NIN WHO SL 4axvadS H3yvadS WHO SL WHO SL Gye ONZ CAUTION WE DO NOT ADVISE OPERATION OF THE BUTCHERINTO A TOTAL LOAD OF LESS THAN FOUR OHMS NO VACUUM TUBE AMPLIFIER SHOULD EVER BE OPERATED WITHOUT A LOAD SPEAKER ATTACHED TO THE OUTPUT JACKS UN d3NV3adS WHO St HL W3LSAS SlNd1NQ Yy34VIdS JIONIS SWH A bt SLLVM Uci HUM BALANCE CONTROL The Butcher utilizes a hum balance circuit which al
8. l cause some variation in overall system loudness experimentation will be necessary to arrive at the best distorted sound If a clean undistorted sound is desired the Low Gain input should be used Turn the Pre Gain control to nearly the full counterclockwise position about 2 Then turn the Post Gain control to nearly the full clockwise position about 8 At this point both the Pre and Post Gain controls will function as overall system loudness controls and some changes in tonality may occur as either gain control is adjusted Again experimentation with the gain controls is the best way to establish the optimum sound INPUTS The Butcher has two instrument inputs which vary widely in sensitivity and application The High Gain input is primarily designed as a distortion input and should be used whenever distortion is desired from the amplifier The Low Gain input is primarily designed as a non distortion input which should be used when no distortion is desired The difference in level between the two inputs is quite significant 32 dB and a player who changes from one input to the other will find that significant changes in the level settings of the Pre and Post Gain controls will be required to achieve equal volume levels The Butcher s inputs are unconventional in that they cannot be used simultaneously insertion of a plug into the Low Gain input will decouple the High Gain input and its accompanying gain stage from the preamp
9. lows the user to minimize the amount of hum noise generated by the tube filaments in order to properly set the Hum Balance control the following procedure should be used With the Power Switch on and with nothing plugged into either input jack set the Pre and Post Gain controls at 10 full clockwise Set the Low Equalization and Mid Equalization controis at 10 full clockwise Set the High Equalization and System Presence controls at 0 full counterclockwise Listen to the speaker and slowly rotate the Hum Balance control When a point is reached when there is virtually no hum stop turning the control Hum balance is now adjusted Since vacuum tubes change with age and use it is a good idea to periodically adjust hum balance In normal use monthly adjustment should be sufficient Hum balance should always be adjusted when new tubes are installed JONV1V8 WDH BUTCHER SPECIFICATIONS POWER AMPLIFIER SPECIFICATIONS TUBE TYPES Four 6L6GC tubes with 12AX7 driver RATED POWER amp LOAD 120W RMS into 4 8 or 16 ohms POWER AT CLIPPING typically 5 THD 1 kHz 120 VAC line 130W RMS into 4 8 or 16 ohms bias must be reduced to measure FREQUENCY RESPONSE 0 2 dB 50 Hz to 10 kHz at 100W into 16 ohms HUM amp NOISE Greater than 88 dB below rated power HUM BALANCE CONTROL Adjust for minimum hum at maximum gain POWER CONSUMPTION 300W 50 60 Hz 120 VAC domestic PREAMP SECTION THE FOLLOWING SPECS ARE M
10. nce the Butcher s equalization is passive it is recommended that one or more EQ controls be operated above minimum counterclockwise settings When all EQ controls are set at minimum the equalization stage is in effect cutting all frequencies The audible result of such settings is simply a reduction in overall system volume level With guitar signals extreme bass boost does not add significantly to the amplifiers projection capabilities but it does consume a disproportionate amount of the available power at the expense of the mid and high frequencies Since mid and high frequency controls are critical to the ultimate tonality of the Butcher Peavey s design engineers have chosen to deliberately limit the function ofthe Low EQ control GAIN CONTROLS The Butcher features Pre and Post Gain controls which will normally be used concurrently to determine distortion levels and overall volume levels In addition selection of the correct input is necessary to optimize the amplifier s response If distortion is desired the High Gain input should be used To arrive at a full distorted sound turn the Post Gain control to nearly its full counterclockwise setting about 2 Then turn the Pre Gain control to nearly the full clockwise pasition about 8 The degree of distortion desired may now be adjusted by the Pre Gain control while the Post Gain control will affect overall volume levels Note that increasing or decreasing either gain control wil
11. ons please read this operating guide carefully and completely Although the Butcher will provide excellent tone when used with any high quality musical instrument enclosure the Peavey 412M and 412MS enclosures have been specifically designed to produce the ultimate rock n roll sound when used with the Butcher amplifier If you have not already done so we urge you to audition your Butcher with one or more of these remarkable enclosures at your nearest Peavey dealer BOOSTER SYSTEM im EQUALIZATION STATLIS Buieher MADE IN USA POWER ON OFF SWITCH The Power On Off switch is a simple two position switch which controls AC power to the amplifier STANDBY ON SWITCH The Standby On switch is a simple two position switch that allows the amplifier to be placed in the standby or active mode GROUND LIFT SWITCH This switch is a three position type with the center 0 position completely removing the internal grounding capacitor from the circuit This position is recommended for situations where the AC power receptacle is known to have a properly grounded third wire When only two wire service is available a suitable ground lift adaptor should be used In this situation the plus and minus switch positions may be used to properly ground the amplifier One of these two positions will yield the lowest amount of hum or popping when the instrument is touched NOTE The Ground Lift Switch is not operational on 22
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