Peavey MA 635T User's Manual
Contents
1. seventy volt line outputs are standard equip ment The MA 635T is packaged as a stand alone unit but will also rack mount into a standard 19 rack 1 Channel Level Control Controls the signal level at the channel input 2 Program Level Control Controls the signal level at the program input 3 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 4 High EQ Control Treble Active equalization control that adjusts the high fre quency response Clockwise rotation boosts highs while counterclockwise rotation provides a cut reduc tion of the high frequencies 10 dB 5 EQ Bypass The in position of this switch bypasses bass and tre ble equalization The out position allows operation of the equalization 6 Contour Switch The in position of this switch provides 6 dB boost at 100 Hz and 6 dB boost at 10 kHz The out posi tion removes boost from the system 7 Status LED 9 Indicates output level from the master mixing stage Bi color illumination capability indicates signal activi Power On LED Indicates when AC power is being supplied to the unit 10 Power Switch ty green and 2 dB below clipping red Master Controls the overall volume level of the system 11 12 13 14 WARNING rtorcouce THE RISK OF INPUT 3 16 17 BRIDG2. BA SLOW RESPONSE 9 0 DURATION PER DAY IN HOURS or less 0 OR OVER TH RTH ABOVE for tutu Obey all cautions in the operating instructions and on the back of the unit All operating instructions should be followed This product should not be used near water ie 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 wall or placed in a built in enclosure that will impede the flow of cooling air This product should not be placed near source of heat Such as a stove radiator or another heat producing amplifier ground pind ower supply information on grounding write for our free booklet Shock Hazard and Grounding Power supply cords should always be handted carefully Never walk or place equipment on power supply cords Periodically check cords for cuts or 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 is to be unused for long periods of time H this productis to be mounted in an equipment rack rear support shouid be provided 14 15 Preamp Out Power Amp In Iv 600r1 Iv isKQ Link Care should be taken so that objects do not fall and liquids are not spilled into the unit through the ventilation holes or any other openings This unit should be checked by a qua
3. E PGM IN OUT e INPUT S INPUT 6 Depress to on position to turn on 18 19 AEDE ARCHITECTURAL ACOUSTICS A DIVISION OF PEAVEY ELECTRONICS CORP MUTE j N MERIDIAN MS MADE iN U S A Ht BALANCED 1 6001 iG CLASS 2 WIRING 70V 25V OUTPUTS 35 WAMS ESISISSISSSSISISE 11 AC Outlet Unswitched 17 Program In Provides AC power for auxiliary equipment with power Accepts signals from other sources such as another consumption 300 watts maximum mixer or mixer amplifier Signal level at this input is 12 Preamp Out controlled by the Program level contro and is fed to Provides output signal to outboard gear for signal pro ihe Master purpur The progr SED e p rou cessing Compressors limiters equalizers etc may is as channe seven without plugin module be patched into the loop from this point Signal from Capan output of signal processor should return to power amp NOTE This input is muted whenever the mute line input The link switch should be in the in position is grounded for this operation 18 Mute Plug in modules are available with muting function 13 Power Amp Input The mute line may be activated with an external Provides access directly to the power amp When switch at this point using this input the link switch should be in the in position 19 Outputs 14 Link Switch A direct output as well as several transformer out Breaks the signal flow routing from the preamp to puts are provide
4. ITS 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 IS THE ONLY EXPRESSED 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 AMEY ARCHITECTURAL ACOUSTICS Features and specifications subject to change without notice A Division of Peavey Electronics Corporation 711 A Street P O Box 2898 Meridian MS 39302 2898 601 483 5376 Telex 504115 Fax 601 484 4278 1991 80301529 Printed in U S A 8 91
5. OPERATING INSTRUCTIONS Intended to alert the user to the presence of uninsulated dangerous voltage within the product s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons intended to alert the user to the presence of important operating and maintenance servicing instructions in the literature accom panying the product CAUTION Risks of electrical shock DO NOT OPEN CAUTION To reduce the risk of electric shock do not remove cover No user serviceable parts inside Refer Servicing to qualified service personnel MA 635T Mixer Amplifier FELVZLY A CHI TEC TURAL A O US FOS eL R C Modular Series CHANNEL 1 CHANNEL 2 CHANNEL 3 SJF 9 Rl Lp d a Ie yc wr eof rj o 10 TREBLE a EQ x BYPASS CONTOUR N EN wm EQOUT P M EON Z D MADE IN U S A 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 Built in low cut filter switchable from rear panel Plug in module capability Output impedance variations 4 ohm 8 ohm 25V and 70V Rack mountable or stand alone package 600 balanced output General Description The Architectural Acousti
6. cs MA 635T is a high quality mixer amplifier with seven separate input channels Each channel provides a level control and the master output sec tion features bass and treble EQ controls defeatable and special equalization contour The MA 635T provides unmatched application flexibility 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 reinforcement applications number of input channels special functions 2tc The program input includes its own evel contro and is totally 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 in put are routed directly to the master summing amplifier stage and are mixed with signals from the other six chan nels Systems requiring a single input may use the program CHANNEL 4 m iN A our CHANNEL 5 MA 635T CHANNEL 6 PROGRAM input and the purchase of an input module is not necessary The program level control regulates the level of this input and the signal is routed through the system bass and tre ble controls The power section delivers 35 watts and includes bullt in SPS compression which allows the MA 635T to pro duce full power capability without audible power amp clip ping A broad load impedance range is provided and twenty five and
7. d to allow the proper interface bet the power amp when the link switch is in the in ween the amplifier and the speaker system The position allowing external signals to be patched in direct output allows direct connection to a 4 ohm at this point speaker system To use this output disconnect the jumper between the 4 ohm terminal and the XFMR 15 Low Cut Switch terminal Connect the speaker or speakers from the Provides ae dB octave low frequency roll off al 60 GND terminal to the 4 ohm terminal 8 ohm 25 volt Hz the in position activates the low cut The out and 70 volt outputs are also provided To used these position defeats the low cut outputs the jumper between 4 ohm and XFMR must 16 Bridge In Out be installed For 8 ohm speaker systems connect Provides 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 between the COM terminal and the 8 ohm output 25V and 70V outputs are also provided for cons tant voltage speaker distribution systems The 25V output connection is between the COM terminal and the 25V terminal and the 70V output is between the COM terminal and the 70V terminal The MA 635T also features a balanced transformer isolated line lev
8. el output This output is provided for direct con nection to music on hold systems booster power amplifiers etc The balanced output is designed to deliver 1V RMS into a 600 ohm load 20 Fuse Replace with the same size and rating 21 Power Cord Connect to 120V AC power source 22 Module Input Ports Accepts plug in modules for all six channels Input modules are optional and should be selected by in stallation requirements NOTE All moduies will function in any of the six ports ss MH M UR A SPECIFICATIONS Output Power 35 watts Power Bandwidth Direct 20 20K 0 5 THD XFMR 50 20K lt 0 5 THD Frequency Response Direct 20 20K 1 0 dB XFMR 20 20K 3 dB THD 0 02 at 1 kHz rated power Output Regulation Direct lt 0 5 dB XFMR 10 dB S N Ratio Master Volume Min 95 dB Master Volume Max 79 dB Power Amp Only 100 dB Tone Controls Bass 10 dB 100 Hz Treble 10 dB 10 kHz Contour 6 dB 100 Hz 6 dB 10 kHz 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 10 V 600 ohms 1 0 V 15K ohms Outputs Direct Out 4 ohms XFMR 8 ohms 25 volts 70 volts balanced Controls 7 input gain controls 1 bass control 1 treble control 1 contour switch 1 master gain control 1 power switch 1 EQ defea
9. lified service technician it A The power supply cord or plug has been damaged B Anyihing has fallen or been spilled into the unit C The unit does not operate correctly D Theunit has been dropped or the enciosure damaged The user should not to attempt to service this equipment All service work should be done by a qualified service technician COM 70 V 25 V enu COM XMFR GND 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 IS IN LIEU OF ANY AND ALL WARRANTIES EXPRESSED OR IMPLIED INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR USE UNDER NO CIRCUMSTANCES WILL PEAVEY BE LIABLE FOR ANY LOST PROF
10. t switch 1 link switch 1 low cut Switch Indicators Power LED Bi color green red status LED Protection Internal current limiting SPS speaker protection out put 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 con nector Outputs Screw terminals Mute V4 jack AC SJT 3 prong Power Consumption AC 120 volts 60 Hz 75 watts Dimensions 5 20 H x 1700 W 12 625 D Color Gray Other Features 600 ohm output Output disconnected for 4 seconds after power on 70V Constant Voltage Distribution System 12 Master Volume 2 COM e 1 V Balanced Output Connectors Balanced 1V 6000 GND 4Q XFMR COM 80 25V 70V GND LO HI DN HPD ODDO To music on hold system booster amplifier etc Direct output to 40 Speaker 1 e Master Volume 2 com 70V e 25V e 1 ER Module Inputs 100MV Oo 3 a ie gt 5 i 6 Le Program 05MV 10K Tm EXPOSURE TO EXTREMELY HIGH NOISE LEVELS MAY CAUSE A PERMANENT HEARING LOSS INDIVIDUALS VARY CONSIDERABLY IN SUSCEPTIBILITY TO NOISE INDUCED HEARING LOSS BUT NEARLY BLOCK DIAGRAM EVERYONE WILL LOSE SOME HEARING IF EXPOSEO TO SUFFICIENTLY INTENSE NOISE FOR A SUFFICIENT TIME THE US GOVERNMENT S OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION OSHA HAS SPECIFIED THE FOLLOWING PERMISSIBLE NOISE LEVEL EXPOSURES SOUND LEVEL d
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