Manuals / Mackie / Home Audio / Stereo Amplifier

Mackie M1200/M1400 Contents, Gain, Power, Input, Thru, Cd Frequency, Stereo, Mono, Bridge

Models: M1200/M1400

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CONTENTS
QUICK START	4
APPLICATION DIAGRAMS	8
FEATURE DESCRIPTIONS	11
GAIN	11
METERS	12
SIG	13
PROTECT	13
SHORT	13
TEMP STATUS	14
POWER	14
POWER CORD	15
SPEAKER OUTPUTS	15
INPUT	16
THRU	18
LOW CUT FILTER	18
CONSTANT DIRECTIVITY	18
CD FREQUENCY	19
AMP MODE	19
STEREO	20
MONO	20
BRIDGE	20
OUTPUT APPLICATION	20
LIMITER	20
SUBWOOFER	21
FREQUENCY	21
GENERAL PRECAUTIONS AND CONSIDERATIONS	23
RACK MOUNTING	23
THERMAL CONSIDERATIONS	23
AC POWER CONSIDERATIONS	23
INPUT WIRING	24
OUTPUT WIRING	24
70V DISTRIBUTION SYSTEMS	25
APPENDIX A: Service Info	26
TROUBLESHOOTING	26
REPAIR	27
APPENDIX B: Glossary	28
APPENDIX C: Connectors	33
APPENDIX D: Arcane Mysteries Illuminated	35
Balanced Lines	35
“Do’s” and “Don’ts” of Fixed Installations	35
Grounding	36
Optimizing Sound System Levels	36
Biamplified and Triamplified Systems	38
APPENDIX E: Technical Info	39
DO THE MATH: OHMS, LOADS AND SUCH	39
SPECIFICATIONS	40
BLOCK DIAGRAM	42
COLOPHON	43

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Contents

Page CAUTION AVIS SAFETY INSTRUCTIONSPORTABLE CART WARNING Lend Me Your Ears INTRODUCTIONQUICK START INSTALLATIONCONNECTIONS AND SETTINGS READ THIS PAGEThings You Must Remember •The 1/4 TS connectors are wired12.Plug the amp’s power cord into a tip = hot + and sleeve = coldGENERAL PRECAUTIONS AND CONSIDERATIONS HOW TO USE THIS MANUALAPPLICATION DIAGRAMS A PLUG FOR THE CONNECTORS SECTIONINPUT CONTENTSPOWER GAINTWO M•1200S: MAIN DIAGRAMSAPPLICATION FROM MIXING CONSOLE MAIN OUT L/RSTEREO/TYPICAL M•1400: EIGHT MONITOR SPEAKERSSEE NOTE BELOW TYPICAL 35HzFROM ACTIVE CROSSOVER: LOW-FREQUENCYL/R M 1200/M 1400 STEREO SYSTEM WITH CD HORNSCONSTANT DIRECTIVITY HORNS FROM ACTIVE CROSSOVER: HIGH-FREQUENCYL/RHowever, reducing the GAIN controls requires an FEATURE DESCRIPTIONSGAIN You can set the GAIN con trols as low as you likeYou may wonder why we didn’t use just one stereo METERScontrol to control both sides tion air in from the front PROTECTSHORT The M 1200/M 1400 amps draw their ventilaBe Aware: If the HOT LED POWERTEMP STATUS What’s that? Why doesn’t theIf you shut down your system, turn off your ampli POWER CORDSPEAKER OUTPUTS fiers first. When poweringBefore making connections INPUTan amp’s signal routing choose to terminate your speaker cables with theRing Balanced XLR ConnectorsHot + Cold –since it’s wired in parallel THRULOW CUT FILTER CONSTANT DIRECTIVITYAMP MODE CD FrequencyMore on Constant Directivity Horns 1.Turn off the power to the M•1200/M•1400 BRIDGEOUTPUT APPLICATION LIMITERYou’ll probably want to try this switch both ways SUBWOOFERHere’s how to configure it 1.Turn the M•1200/M•1400’s POWER offPage GENERAL PRECAUTIONS AND CONSIDERATIONS AC POWER CONSIDERATIONSRACK MOUNTING THERMAL CONSIDERATIONS50 feet INPUT WIRINGOUTPUT WIRING 25 feetUp to 40 ft 70V DISTRIBUTION SYSTEMSWire Length Up to 25 ftNo power APPENDIX A Service InfoWARRANTY SERVICE TROUBLESHOOTING• You have a broken finger REPAIRBad sound Noise/HumAPPENDIX B: Glossary decibel dB frequency knee shelving UNBALANCING A LINE APPENDIX C: Connectors“XLR” CONNECTORS 1⁄4 TS PHONE PLUGS AND JACKSFigure G: Speakon Connectors SPEAKONSBINDING POSTS Figure D: Binding Posts with Bare WireA balanced line is a three APPENDIX D: Arcane Mysteries IlluminatedMaximum wire run for 0.5dB power loss in feet Balanced Lines11.Don’t use hardware-storelight dimmers GroundingHere are some guidelines Optimizing Sound System LevelsDynamic Range Next set the master output level faderBiamplified System with Active Crossover Passive Crossover SystemDO THE MATH: OHMS, LOADS AND SUCH APPENDIX E: Technical InfoSPECIFICATIONS Limiter Section IndicatorsPower Consumption AC Line PowerM•1200/M•1400 FREQPrinted in the U.S.A COLOPHONMackie, The Running Man, and FR Series 1996 Mackie Designs Inc All Rights Reserved

CONTENTS

GAIN

POWER

INPUT

THRU

CD FREQUENCY

STEREO

MONO

BRIDGE

LIMITER

SUBWOOFER

FREQUENCY