Mackie LM-3204 Owner's Manual Page 1

LM-3204 OWNER’S MANUAL1022+20OOU1LEVEL+20OOU2+20OOU3LEVEL+20OOU4STEREO AUX RETURNSAUX RETURN TO CONTROL ROOM ONLYSOURCEALT 3-4403020107420247+–CLIPPHO

100dBu (.775 volts rms) at the rear outputjacks. The LM-3204’s main outputs are0dBu=0dB Meter whether you are usingbalanced or unbalanced cables.The m

11Quick recap: In the up position, the TapeMonitor switch selects the main Left andRight bus outputs for the monitor circuits andthe meters. In the do

12REAR-PANEL CONNECTIONSWith the exception of the handy Phones out-put jack, all of the connections to the LM-3204 aremade on the rear panel of the un

133. As a send-return insert for processing. Use a1⁄4" TRS (stereo) plug “Y”-ed to two mono(TS) 1⁄4" plugs. The tip should be wired tosend t

14an insert at left, or check the patching illustra-tion on the back of the LM-3204.TAPE OUT AND TAPE IN The LM-3204 provides a number of ways tofeed

151022403020107420247+–CLIPPHONESOOSOLO+20OOUTAPEMONITORLEVELCONTROL ROOM OUTPUTS This is where you plug in your monitorpower amplifier. The Left and

16SECTION 3: GENERAL INFORMATIONgrinding distortion.Somewhere between the noise and theclipping is an optimum level for your signal:high enough above

17But if your music is sounding good, don’tworry if you’re in the yellow a lot or if someparts of the track hardly read at all. You’llquickly get a fe

18more punch and moresizzle without makingthe mix muddy or harsh.The MID EQ sectionis a peaking/dippingequalizer with a bell-shaped response curve.The

19SECTION 4: USING THE LM-3204hooked up to a synthesizer, tickle thoseplastic ivories! On the other hand, you mighthave to deviate from this approach

2v1.1–10/94CAUTION AVISRISK OF ELECTRIC SHOCK DO NOT OPENRISQUE DE CHOC ELECTRIQUENE PAS OUVRIRCAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCKDO NOT

20sound engineer feels when you come at herwith your 12 output cables.We figure that if you bought an LM-3204 forstage use, you already have an equipm

21Note: If you are using turntables and vinyldiscs, you must have a stereo phono preampli-fier for each turntable for correct impedancematching, gain

22RL1234(MONO)L15 13 11 CONTROL ROOMOUTPUTSR(MONO)LRRLALT 3/4OUTPUTSLRLREXPANDER INRLMAIN INSERTSRL MAIN/TAPE OUTPUTS STEREO AUX RETURNS1234 AUX S

2397531 STEREO BALANCED OR UNBALANCED LINE INPUTS(MONO)LRLRCHANNEL INSERTS1321MIC PREAMPOUTPUT MIC INRLTAPE INPUTS21MIC PREAMP GAIN10dB50dB GAINGAIN

24RL1234(MONO)L15 13 11 CONTROL ROOMOUTPUTSR(MONO)LRRLALT 3/4OUTPUTSLRLREXPANDER INRLMAIN INSERTSRL MAIN/TAPE OUTPUTS STEREO AUX RETURNS1234 AUX S

2597531 STEREO BALANCED OR UNBALANCED LINE INPUTS(MONO)LRLRCHANNEL INSERTS1321MIC PREAMPOUTPUT MIC INRLTAPE INPUTS21MIC PREAMP GAIN10dB50dB GAINGAIN

26RL1234(MONO)L15 13 11 CONTROL ROOMOUTPUTSR(MONO)LRRLALT 3/4OUTPUTSLRLREXPANDER INRLMAIN INSERTSRL MAIN/TAPE OUTPUTS STEREO AUX RETURNS1234 AUX S

2797531 STEREO BALANCED OR UNBALANCED LINE INPUTS(MONO)LRLRCHANNEL INSERTS1321MIC PREAMPOUTPUT MIC INRLTAPE INPUTS21MIC PREAMP GAIN10dB50dB GAINGAIN

28RL1234(MONO)L15 13 11 CONTROL ROOMOUTPUTSR(MONO)LRRLALT 3/4OUTPUTSLRLREXPANDER INRLMAIN INSERTSRL MAIN/TAPE OUTPUTS STEREO AUX RETURNS1234 AUX S

2997531 STEREO BALANCED OR UNBALANCED LINE INPUTS(MONO)LRLRCHANNEL INSERTS1321MIC PREAMPOUTPUT MIC INRLTAPE INPUTS21MIC PREAMP GAIN10dB50dB GAINGAIN

3PLEASE! SAVE THESHIPPING BOX!Top Ten Reasons forsaving your shipping box:10. It’s here.9. It’s yours.8. It’s paid for.7. It’s strong and sturdy.6. It

30APPENDIX A: Connections• Stereo Headphones, and rarely, stereomicrophones and stereo line connections.When wired for stereo, a 1⁄4" TRS jack or

311⁄4" TS PHONE PLUGS AND JACKS“TS” stands for Tip-Sleeve, the two connectionsavailable on a “mono” 1⁄4" phone jack or plug (Fig-ure C). TS

32TRS Send/Receive Insert JacksThe insert jacks on both the LM-3204 inputchannels 1-4 and on the left and right mainbuses are the three-conductor, TRS

33APPENDIX B: OPTIONS, ADD-ONSAND EXTRA STUFFLM-3204E Stereo Line ExpanderNobody ever has enough inputs. And when16 stereo line inputs are finally too

34APPENDIX C: SPECIFICATIONS: TECH STUFFLM-3204 Owner’s Manual SpecsNoise (20Hz to 20kHz bandwidth, Line inputs to MainL/R outputs, all channels assig

357/94 LM-3204 LINE MIXER ©1994 MACKIE DESIGNS INC.Dimensions also apply to LM-3204E Expander.LM-3204WEIGHT21 lbs.19.00"5 rack spaces(5U)17.50&qu

36+-+-LEFT (MONO)LINE INBALANCEBAL/UNBALINPUTS+-RIGHTLINE IN•••••••••••••LRLRMAIN 1-2ALT 3-4INSERT(CH’s 1-4)••MUTE/ALT 3-4••••••••••LEVELLEVELSOLOAUX

37APPENDIXLRLRLRAUX 1AUX 3AUX 4AUX 2SOLOCONTROL••••••••••10CLIP 7420-2-4-7-10-20-30-40RL METERLEFTMAINOUTRIGHTMAINOUTL•••••• •••••∑••∑L MAININSERTR MA

38APPENDIX D: SERVICEPLEASE! SAVE THE SHIPPING BOX!Yes, we know that it’s slightly larger thanthe suitcase you’re living out of, but you willneed the

394. Write the RA number plainly on theoutside of the shipping carton in BIGprint (those huge stinky sign markerswork well for this).5. Ship the produ

4SECTION 1: INTRODUCTIONIt marks information that is absolutely critical oris unique to the LM-3204.In addition, sections tagged with this icon:includ

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5IMPORTANT SENSITIVITYADJUSTMENT PROCEDURE!So important we put it first, before anythingelse.To fully achieve the LM-3204 Mixer’simpressive headroom a

6SECTION 2: PANEL LAYOUT & FUNCTIONON THE LEFT SIDEMost of the LM-3204 front panel (four-fifths,precisely) is occupied by the 16 stereo, linelevel

7LAYOUTANDFUNCTIONTo make matters even easier, the crack MackieDetent Crew have put a little mechanical “pot-hole” or detent at the Unity Gain point o

8U+30dBOOBALANCEL–15 +15U–12 +12U2+15OOU–15 +15U1+15OOU16SHIFT-20OL4312kSTEREOMONOHI80LO2.5kMIDEQSOLOAUXLR16CHANNELMUTEALT 3- 4 GAINGAINwill also ligh

9EQIn keeping with the stereo theme of this entiremixer, the engineers at Mackie have decided toprovide stereo equalization as well. Just like thester