Peavey MA 675 / 6150 User's Manual
Contents
1. 675 Direct output to 40 Speaker 1 Master Volume 190 18 indino ay Jo BORUSPI SI 0919 VIN UL 929 VIN SY 20 51 UMOUS WEIBEIP SY 210 02109 eisen SLAI 300 wot 1 ideas ASA dure gt 4 5 kepy ESTA vr SINN 129 AMOO A SSA ray _ UNO ANOO ad eisen LIMITED WARRANTY Peavey Electronics Corporation warrants to the original purchaser of this new Architectural Acoustics product that it is free from defects in material and workmanship If within one 1 year from date of purchase a properly installed product proves to be defective and Peavey is notified Peavey will repair or replace it at no charge Note Batteries and patch cords not covered Original purchaser means the customer for whom the product is originally installed Damage resulting from improper installation interconnection of a unit or system of another manufacturer accident or unreasonable use neglect or any other cause not arising from defects in material and workmanship is not covered by this warranty The warranty is valid only as to products purchased and installed in the United States THIS LIMITED WARRANTY 15 IN LIEU OF ANY AND ALL WARRANTIES EXPRESS OR IMPLIED INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR USE UNDER NO CIR2. INPUT 2 F WARNIN PREVENT THE FISK OF AND SHOCK 120 VAC 60 HAZARD DO NOT EXPOSE THIS APPLIANCE TO OR MOISTURE DO NOT REMOVE COVER USER SERVICEABLE PARTS IN SIDE REFER SERVICING QUALIFIED SERVICE PEASONNEL 10 PREVENT THE SHOCK HAZARD RE PLACE WITH SAME TYE 250 VOLT SE INPUT INPUT 3 AVIS RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR REMPLACER PAR UN FUSBLE DE MENE FT DF 250 VOLTS FUSE JAMP 126 VAC 2 206 WATTS 4 20 21 outlet Unswitched Provides AC power for auxiliary equipment with power consumption 300 watts maximum Preamp Out Provides output signal to outboard gear for signal pro cessing Compressors limiters equalizers etc may be patched into the loop from this point Signal from output of signal processor should return to power amp input The link switch should be in the in position for this operation Power Input Provides access directly to the power amp When using this input the link switch should be in the in position Link Switch Breaks the signal flow routing from the preamp to the power amp when the link switch is in the in position allowing external signals to be patched in at this point Low Cut Switch Provides a 6 dB octave low frequency roll off at 60 Hz The in position activates the low cut The out posi tion defeats the low cut Bridge In Out Prov
3. malicious alteration of system calibration Channel Level Control Controls the signal level at the channel input Program Level Control Controls the signal level at the program input Low EQ Control Bass Active equalization control that adjusts the low frequen cy response Clockwise rotation boosts lows while counterclockwise rotation provides a cut reduction of the low frequencies 10 dB High EQ Control Treble Active equalization control that adjusts the high frequen cy response Clockwise rotation boosts highs while counterclockwise rotation provides a cut reduction of the high frequencies 10 dB EQ Bypass The in position of this switch bypasses bass and tre ble equalization The out position allows operation of the equalization Contour Switch The in position of this switch provides 6 dB boost at 100 Hz and 6 dB boost at 10 kHz The out position removes boost from the system Status LED Indicates output level from the master mixing stage Bi color illumination capability indicates signal activity green and 2 dB below clipping red Master Controls the overall volume level of the system Power On LED Indicates when AC power is being supplied to the unit Power Switch Depress to on position to turn on 11 12 13 14 15 16 17 11 12 13 PWR PRFAMP AMP OJO
4. or speakers from the GND terminal to the out terminal 8 ohm 16 ohm 25 volt and 70 volt outputs are also pro vided To use these outputs the jumper between OUT and XFMR must be installed For 8 ohm speaker systems connect between the GND terminal and the 8 ohm output on the MA Series For use with 16 ohm speaker systems connect between the GND terminal and the 16 ohm terminal 25V and 70V outputs are also provided for constant voltage speaker distribution systems On the MA 675 and the 6150 the 25V output connection is between the GND terminal and the 25V terminal Fuse Replace with the same size and rating Power Cord Connect to 120V AC power source Module Input Ports Accepts plug in modules for all six channels Modules are optional and should be selected by installation re quirements NOTE All modules will function in any of the six ports Output Power 75 watts Power BW Direct 20 20K lt 15 THD XFMR 35 20K lt 1 5 Frequency Response Direct 20 20K 1 0 dB XFMR 20 20K 3 dB THD 0 02 at 1 kHz 65W RMS 15 at 1 kHz 75W RMS Output Regulation Direct lt 0 5 dB XFMR lt 1 0 dB S N Ratio Master Volume Min 95 dB Master Volume Max 77 dB Power Amp Only 100 dB Tone Controls Bass 10 dB 100 Hz Treble 10 dB 10 kHz Contour 8 dB 100 Hz 4 dB E 10 kHz Output Power 150 watts Power BW Direct 20 20K lt 0 5 THD XFMR 35 20K lt 05 Frequency Respon
5. 2898 80301233 1990 Printed in U S A
6. CUMSTANCES WILL PEAVEY BE LIABLE FOR ANY LOST PROFITS LOST SAVINGS INCIDENTAL DAMAGES OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PRODUCT EVEN IF PEAVEY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE THIS LIMITED WARRANTY 15 THE ONLY EXPRESS WARRANTY ON THIS PRODUCT AND NO OTHER STATEMENT REPRESENTATION WARRANTY OR AGREEMENT BY ANY PERSON SHALL BE VALID OR BINDING UPON PEAVEY Peavey s liability to the original purchaser for damages for any cause whatsoever and regardless of the form of action is limited to the actual damages up to the greater of Five Hundred Dollars 500 or an amount equal to the purchase price of the product that caused the damage or that is the subject of or is directly related to the cause of action This limitation of liability will not apply to claims for personal injury or damage to real property or tangible personal property allegedly caused by Peavey s negligence For information on service under this warranty call a Peavey customer service representative at 601 483 5376 DANGER EXPOSURE TO EXTREMELY HIGH NOISE LEVELS MAY CAUSE A PERMANENT HEARING LOSS INDIVIDUALS VARY CONSIDERABLY IN SUSCEPTIBILITY TO NOISE INDUCED HEARING LOSS BUT Y 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 LEVE EXPOSUHES DURATION PER DA
7. OPERATING INSTRUCTIONS MA 675 6150 MIXER AMPLIFIER INTRODUCTION AND GENERAL DESCRIPTION OF THE PEAVEY ARCHITECTURAL ACOUSTICS MA 675 6150 CHANNEL CHANNEL 2 CHANNEL 3 SA Jo is 56 aa SLR 5 1 4 AL m 55 gt 3 Y ye ai wae a a o y N 3 a 4 S IN aa PON ENS Ne BASS TREBLE Vy Kroass CONT OOK m N CHANNEL 4 amp 675 fi PROGRAM CHANNEL 5 MASTER ii DE ee FEATURES 7 channel mixer power amplifier system 20 20 kHz frequency response Bridging input output Dedicated program input Contour switch special equalization Bass and treble controls Preamp output power amp input patch capability Short circuit and thermal protection SPS compression circuitry internally defeatable External volume control Built in low cut filter switchable from rear panel Plug in module capability Output impedance variations 4 ohm 8 ohm 16 ohm 25V and 70V Rack mountable or stand alone package General Description The Architectural Acoustics MA 675 and MA 6150 are high quality mixer amplifiers with seven separate input chan nels Each channel provides a level control and the master output section features bass and treble EQ controls defeatable and special equalization contour T
8. Y IN HOURS SOUND LEVEL dBA SLOW RESPONSE 8 90 6 32 3 3 97 2 00 bo 02 1 105 110 4 less 115 ACCORDING TO OSHA ANY EXPOSURE IN EXCESS OF THE ABOVE PERMISSIBLE LIMITS COULD RESULT IN SOME HEARING LOSS EAR PLUGS OR PAOTECTORS IN THE EAR CANALS OR OVER THE EARS MUST BE WORN WHEN OPERATING THIS AMPLIFICATION SYSTEM IN ORDER TO PREVENT A PERMANENT HEARING LOSS IF EXPOSURE IS IN EXCESS OF THE LIMITS AS SET FORTH ABOVE TO INSURE AGAINST POTENTIALLY DANGEROUS EXPOSURE TO HIGH SOUND PRESSURE LEVELS IT IS RECOMMENDED THAT ALL PERSONS EXRGSEETGEQUIPMENT CAPABL PRODUCING NIG ND PRESS f CA TEGTIERAY HEARING PROTECTORS WHILE THISUNIT IS ARK ER SYSTEMS EXTENDED OFF N BE OPTAINED WITH VERY Seah cleaned A damp rag vinyl oa power supply marked onthe Mel t parta covering used on some units can be cleaned withadamp ihis product All safety and operating instructions should be retained for future reference Obey all cautions in ihe operating instructions andontne back of the unit All operating instructions should be followed This product should not be used near water valhtub sink swimming pool wet basemen 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 wall or placed in a built in erciosure that will impede the flow of cooling air This product shoulo be placed near a source ot heat unit adja
9. cent to the power supply cord Never break off the ground pin on the power supply cord For more information on grounding write our free booklet Shock Hazard and Grounding Power supply cords should always be handled carefully Never walk or place equipment on power supply cords Periodically check cords for cuts signs of stress especially at the plug and the point where the cord exits the unit The power supply cord should be unplugged when the unit 15 to be unused for long periods of time If this product is to be mounted in an equipment rack rear support should be provided rag or an ammonia based household Cleaner if necessary Care should be taken so that objects do not tall and liquids are not spilled into the unit through the ventilation holes or any other openings This unit should be checked by a qualified service technician if A The power supply cord or plug has been damaged B Anything has fallen or been spilled into the unit The unit does not operate correctly D The unit has been dropped or the enclosure damaged The user should not to attempt to service this equipment All service work should be done by qualified service technician such as a stove radiator or another heat producing amplifier PELMVEY ARCHITECTURAL ACOUSTICS Features and specifications are subjects to change I nn A DIVISION OF PEAVEY ELECTRONICS CORPORATION 711 A Street P O Box 2898 Meridian MS 39302
10. he MA 675 and 6150 provide unmatched application flex ibility with an array of optional plug in modules allowing each system to be tailor made for specialized installations Input modules may be loaded in as required for varying sound rein forcement applications number of input channels special functions etc The program input includes its own level control and is total ly separate from the other six channels External signals may be patched in at this point as a system auxiliary input or the seventh input channel Signals appearing at this input are routed directly to the master summing amplifier stage and are mixed with signals from the other six channels Systems requiring a single input may use the program input and the purchase of an input module 15 not necessary The program level control regulates the level of this input and the signal is routed through the system bass and treble controls The power sections deliver 75 watts MA 675 and 150 watts MA 6150 and include built in SPS compression which allows the MA Series to produce full power capability without audible power amp clipping A broad load impedance range 6 10 10 is provided and twenty five and seventy volt line outputs are standard equipment The MA 675 and 6150 are packaged as stand alone units but will also rack mount into a standard 19 rack A smoke tinted security cover has been provided with a snap on feature to guard against accidental
11. icolor green red status LED Protection Internal current limiting SPS speaker protection output relays 1 line fuse external and 2 internal fuses Protection Internal current limiting SPS speaker protection output relays 1 line fuse external and 2 internal fuses Connectors Preamp Out Power Amp In PGM input bridge in out RCA phono jack Ports 1 6 Card edge connector Outputs Screw terminals Mute Va jack AC SJT 3 prong Power Consumption AC 120 volts 60 Hz 200 watts Dimensions 5 20 H x 17 00 W x 12 625 D Color Gray Standard Accessories Tinted security cover Rack mount ears Other Features Provisions for external master volume control Output disconnected for 4 seconds after power on Connectors Preamp Out Power Amp In PGM input bridge in out RCA phono jack Ports 1 6 Card edge connector Outputs Screw terminals Mute va jack AC SJT 3 prong Power Consumption AC 120 volts 60 Hz 400 watts Dimensions 5 20 H x 17 00 W x 12 625 0 Color Gray Standard Accessories Tinted security cover Rack mount ears Other Features Provisions for external master volume control Output disconnected for 4 seconds after power on 675 70V Constant Voltage Distribution System Master Volume 2 GND 70V ES 169 80 25V 40 Jumper Installed GND Y MASTER 10K Linear Taper Potentiometer Shielded
12. ides output signal that is independent of the Master level control Bass and Treble controls It also may be used as a mixing output point when the similar terminal of another amplifier is connected to this terminal A separate tape recording output may be taken from this point without interaction of EQ and master level control Program In Accepts signals from other sources such as another mix er or mixer amplifier Signal level at this input is controlled by the Program levei control and is fed to the Master out put The program in may be regarded as channel seven without plug in module capability NOTE This input is muted whenever the mute line is grounded 22 16 17 BRIDGE PGM NOU N INPUT 5 18 19 21 22 19 18 ARCMTECTURAL A DIVISION OF PEAVEY El ECTRONICS CORP MERIDIAN MS MADE IN U S A S INPUTS MASTER VOLUME gt GNC AMS OUTPUTS 45 W RMS FIAIT ISIS e Mute Plug in modules are available with muting function The mute line may be activated with an external switch at this point Outputs A direct output as well as several Autoformer outputs are provided to allow the proper interface between the amplifier and the speaker system The direct output allows direct connection to a 4 ohm speaker system To use this output disconnect the jumper between the OUT terminal and the XFMR terminal Connect the speaker
13. se Direct 20 20K 1 0 dB XFMR 20 20K 3 dB THD 0 02 at 1 kHz 145W RMS 0 05 at 1 kHz 150W RMS Output Regulation Direct lt 0 5 dB XFMR lt 1 0 dB S N Ratio Master Volume Min 95 dB Master Volume Max 77 dB Power Amp Only 100 dB Tone Controls Bass 10 dB 100 Hz Treble 10 dB 10 kHz Contour 8 dB 100 Hz 4 dB 10 kHz SPECIFICATIONS MA 675 Inputs Six input ports one dedicated program input bridge in out Input Sensitivity Ports 1 6 and 100 mV 10K ohms Bridge In Out 100 mV 3 3K ohms Preamp Out Power Amp In 1 0 V 600 ohms 1 0V 15K ohms Outputs Direct Out 4 ohms XFMR 8 ohms 16 ohms 25 volts 70 volts Controls 7 input gain controls 1 bass control 1 treble control 1 contour switch 1 master gain control 1 power switch 1 EQ defeat switch 1 link switch 1 subsonic switch Indicators Power LED bicolor green red status LED SPECIFICATIONS MA 6150 Inputs Six input ports one dedicated program input bridge in out input Sensitivity Ports 1 6 and PGM 100 mV 10K ohms Bridge In Out 100 mV 3 3K ohms Preamp Out Power Amp In 1 0 600 ohms 1 0V 15K ohms Outputs Direct Out 4 ohms XFMR 8 ohms 16 ohms 25 volts 70 volts Controls 7 input gain controls 1 bass control 1 treble control 1 contour switch 1 master gain control 1 power switch 1 EQ defeat switch 1 link switch 1 subsonic switch Indicators Power LED b
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