7/1/95

RELATED PRODUCTSLM-3204E Expander

MixerMixer Combiner

MORE INFORMATION

FEATURES

LM-3204 ARCHITECTS’ ANDENGINEERS’ SPECIFICATIONS

“IN YOUR FACE”ALL-PRODUCT BROCHURE

■ 40 inputs in 5 channels■ 16 stereo channels■ 2 Mackie mic preamps

patchable to any chs.■ 45mm master faders■ 4 AUX sends per ch.■ 4 stereo (8 mono) AUX

returns■ –20dB Signal Present

LEDs on all channels■ 3-band EQ■ ALT 3/4 extra stereo bus■ Separate Control Room

output with fader levelcontrol

■ Tape Monitor section■ Headphone output with

level control■ 4 stereo inserts■ Expandable with the

LM-3204E

32x2x2 STEREO LINE MIXER

It has our“four buses in a 2-busboard” ALT 3-4 feature.ALT 3-4 gives you an extrastereo output that eachchannel can be assigned toat the touch of a button.

The LM-3204 shares thesame Mackie Mix Amp ar-chitecture as our provenCR-1604 and MicroSeries1202. Like our other com-pact mixers, it is designedto handle hot inputs on allchannels without exhaust-ing headroom.

Two mic preamps.Even though the

LM-3204 is a line mixer,we wanted to increase itsutility in live applications.So we added two of ourproven mic preamplifiers, adesign well known for itshigh headroom and ultra-low noise. Both micpreamps have trim con-trols, balanced XLR inputsand 1/4" outputs. The out-puts can be patched into

TheLM-3204 LineMixer combines ex-ceptional sound qualitywith up to forty lmono ineinputs in five rack spaces.It features sixteen stereo(16x2) inputs plus fourstereo (4x2) AUX returns.Additional inputs can beadded in multiples of 16stereo channels with theLM-3204E Expander unit.

Proven Mackiefeatures in a line

mixer configuration.Naturally, the LM-3204

has our CR-1604 and Mi-cro Series 1202's bestpoints: luxurious head-room, Unity gain structure,+4dBu internal operatinglevels, intuitive layout andin-depth metering. It hasour 3-band equalization atmusically useful points:12kHz shelving treble formore sizzle, instead of theconventional 10kHz. 2.5Hzpeaking midrange. And80Hz bass instead of100Hz.

®

7/1/95

LM-3204E Expander

any of the LM-3204's 16channels.

Signal Present LEDs onevery channel.

TheLM-3204's–20dBLEDs lightwheneverthere is asignal levelof +20dBuat 1kHz orabove atthe inputs

of that channel strip. Inpractice, this LED will

toring outputs, each withits own level control. Moni-toring controls consist of astereo Control Room fader,the Phones level control(with a handy Phones jackjust below it), and the TapeMonitor switch. ControlRoom and Phone monitoroutputs always share thesame sources:■ The main Left and Right

buses under normalconditions;

■ The output of your taperecorder (or some other

source patched into theTape In jacks) when theTape Monitor switch ispushed, or;

■ The stereo solo buseswhenever any Soloswitch is pressed. Thesolo circuits override theTape Monitor switch.In the up position, the

Tape Monitor switchselects the main Left andRight bus outputs for themonitor circuits and themeters. In the down posi-tion, the Tape Monitorswitch selects the Tape

AUX Return 3 inputs aredisconnected. Instead,the outputs of the ALT 3-4 buses are routed intothe AUX Return 3 controland circuitry. This allowsyou to use ALT 3-4 as apair of submix buses andthen remix them backinto the main Left andRight buses.

AUX Return to Con-trol Room Only for AUXReturn 4. When thisswitch is up, AUX Return4 functions normally.When the switch isdown, the AUX Return 4is disconnected from themain Left and Rightbuses and is reconnectedto the control roommonitor and headphonecircuits (where it is mixedback in with Left andRight signal on its way tothe Monitor section). Thisallows you to wet moni-tor or send performers acue or click feed withouthaving it go onto tape.

Main Outputs are elec-tronically balanced andcapable of driving record-ers at either +10dBV or+4dBu. 1/4" TS Tape Injacks provide a monitorreturn for deck output.Tape In jacks are routedthrough the Tape Monitorswitch in the Main Out-put section which cansend the signal to theControl Room andPhones buses. The LM-

3204 also has four unbal-anced RCA-type connectorswith Out RCA jacks con-nected in parallel to theMain Output jacks.

Expandable withthe LM-3204E.

Need 32, 48 or even 64stereo line inputs withoutadding significant noise ordegrading overall head-room? The LM-3204E isessentially an LM-3204without the master section.It includes 16 stereo chan-nels and four Aux returns.Connection is via a propri-etary ribbon cable. TheLM-3204E also includes aribbon cable input so thatexpanders can be daisy-chained.

All the “hidden” thingsMackie is noted for.

Such as a built-in powersupply with IEC cord, built-in RFI protection and sealedrotary potentiometers. TheLM-3204's front panel cir-cuit board is a horizontal,through-hole-plated fiber-glass slab attached withsolid brass standoffs that

flicker or light almost con-stantly when there isactivity in that channel,and it basically serves as aconvenient way of figuringout what's plugged intowhere.

New monitor andtape features

The LM-3204 also intro-duces new features thatprovides real flexibility forboth live and studio appli-cations.

It has separate ControlRoom and Phone moni-

Inputs for the monitorcircuits and the meters.Control Room outputs areprovided for connectionto a power amplifier(without tying up yourheadphone output).

The LM-3204's fourstereo Aux returns includetwo new features:

Source ALT 3-4 switchfor AUX Return 3. Withthe switch up, AUX Return3 is just what it's adver-tised to be: an AUXReturn. When the SourceALT 3-4 switch is down,

+-

+-

LEFT (MONO)LINE IN

BALANCEBAL/UNBAL

INPUTS

+-

RIGHTLINE IN

•

•

•

•

•

•

••

••

•

•

•

L R L R L R L R L R

MAI

N 1-

2

ALT

3-4

AUX

1

AUX

3AU

X 4

AUX

2

SOLO

CON

TROL

INSERT(CH’s 1-4)

•

•

MUTE/ALT 3-4 •

••

••

•••

••••

••

•

•

•

•

•

•

LEVEL

LEVEL

SOLOAUX 1/3

AUX 2/4

CONTROL

STEREOCHANNEL

1 of 16

CLIP LED

-20 LED

•

10CLIP

7420-2-4-7-10-20-30-40

RL METER

••

•

LEFTMAINOUT

RIGHTMAINOUT

L

• • • • • • • • • • • • •

•

•

••

•

•

••

•

•

•

•

•

•

•

•

LEFT (MONO)

AUX RETURN 1

RIGHT

LEVEL

•LEFT (MONO)

AUX RETURN 2

RIGHT

LEVEL48 V

TRIM

MIC 1OUT

MIC 2OUT

TRIM

OPTIONALLM-3204EEXPANDER

MACKIEMIC PREAMPS

SOURCE ALT 3-4

RET 4 TOCONTROL ROOM ONLY

•LEFT (MONO)

AUX RETURN 3

RIGHT

LEVEL

•LEFT (MONO)

AUX RETURN 4

RIGHT

INSERT(CH’s 1-4)

LO MID HIEQ

LO MID HIEQ

S

S

+-

• •

S

•

• •

S

L MAININSERT

R MAININSERT

+-

+-

•

• • ••

• •

S

S

S

S•

•

•

•SOLOLEVEL

SOLORELAYDRIVER

L FADER

R FADER

TAPEMONITOR

•

•

•

•

•

•

•

•

S

•

S

S

C/R FADER

PHONESLEVEL

•

•

•

•

S

S

S

S

S

R

CONTROLROOM OUT

PHONESOUT

TAPE INLEFT

TAPE INRIGHT

L

R

ALT 3-4OUT

L ( MONO)

R

AUX 1OUT

L ( MONO)

R

AUX 3OUT

AUX 2OUT

AUX 4OUT

•

To Schenectady

S

S

SHIFT

7/1/95

LM-3204E Expander

any of the LM-3204's 16channels.

Signal Present LEDs onevery channel.

TheLM-3204's–20dBLEDs lightwheneverthere is asignal levelof +20dBuat 1kHz orabove atthe inputs

of that channel strip. Inpractice, this LED will

toring outputs, each withits own level control. Moni-toring controls consist of astereo Control Room fader,the Phones level control(with a handy Phones jackjust below it), and the TapeMonitor switch. ControlRoom and Phone monitoroutputs always share thesame sources:■ The main Left and Right

buses under normalconditions;

■ The output of your taperecorder (or some other

source patched into theTape In jacks) when theTape Monitor switch ispushed, or;

■ The stereo solo buseswhenever any Soloswitch is pressed. Thesolo circuits override theTape Monitor switch.In the up position, the

Tape Monitor switchselects the main Left andRight bus outputs for themonitor circuits and themeters. In the down posi-tion, the Tape Monitorswitch selects the Tape

AUX Return 3 inputs aredisconnected. Instead,the outputs of the ALT 3-4 buses are routed intothe AUX Return 3 controland circuitry. This allowsyou to use ALT 3-4 as apair of submix buses andthen remix them backinto the main Left andRight buses.

AUX Return to Con-trol Room Only for AUXReturn 4. When thisswitch is up, AUX Return4 functions normally.When the switch isdown, the AUX Return 4is disconnected from themain Left and Rightbuses and is reconnectedto the control roommonitor and headphonecircuits (where it is mixedback in with Left andRight signal on its way tothe Monitor section). Thisallows you to wet moni-tor or send performers acue or click feed withouthaving it go onto tape.

Main Outputs are elec-tronically balanced andcapable of driving record-ers at either +10dBV or+4dBu. 1/4" TS Tape Injacks provide a monitorreturn for deck output.Tape In jacks are routedthrough the Tape Monitorswitch in the Main Out-put section which cansend the signal to theControl Room andPhones buses. The LM-

3204 also has four unbal-anced RCA-type connectorswith Out RCA jacks con-nected in parallel to theMain Output jacks.

Expandable withthe LM-3204E.

Need 32, 48 or even 64stereo line inputs withoutadding significant noise ordegrading overall head-room? The LM-3204E isessentially an LM-3204without the master section.It includes 16 stereo chan-nels and four Aux returns.Connection is via a propri-etary ribbon cable. TheLM-3204E also includes aribbon cable input so thatexpanders can be daisy-chained.

All the “hidden” thingsMackie is noted for.

Such as a built-in powersupply with IEC cord, built-in RFI protection and sealedrotary potentiometers. TheLM-3204's front panel cir-cuit board is a horizontal,through-hole-plated fiber-glass slab attached withsolid brass standoffs that

flicker or light almost con-stantly when there isactivity in that channel,and it basically serves as aconvenient way of figuringout what's plugged intowhere.

New monitor andtape features

The LM-3204 also intro-duces new features thatprovides real flexibility forboth live and studio appli-cations.

It has separate ControlRoom and Phone moni-

Inputs for the monitorcircuits and the meters.Control Room outputs areprovided for connectionto a power amplifier(without tying up yourheadphone output).

The LM-3204's fourstereo Aux returns includetwo new features:

Source ALT 3-4 switchfor AUX Return 3. Withthe switch up, AUX Return3 is just what it's adver-tised to be: an AUXReturn. When the SourceALT 3-4 switch is down,

+-

+-

LEFT (MONO)LINE IN

BALANCEBAL/UNBAL

INPUTS

+-

RIGHTLINE IN

•

•

•

•

•

•

••

••

•

•

•

L R L R L R L R L R

MAI

N 1-

2

ALT

3-4

AUX

1

AUX

3AU

X 4

AUX

2

SOLO

CON

TROL

INSERT(CH’s 1-4)

•

•

MUTE/ALT 3-4 •

••

••

•••

••••

••

•

•

•

•

•

•

LEVEL

LEVEL

SOLOAUX 1/3

AUX 2/4

CONTROL

STEREOCHANNEL

1 of 16

CLIP LED

-20 LED

•

10CLIP

7420-2-4-7-10-20-30-40

RL METER

••

•

LEFTMAINOUT

RIGHTMAINOUT

L

• • • • • • • • • • • • •

•

•

••

•

•

••

•

•

•

•

•

•

•

•

LEFT (MONO)

AUX RETURN 1

RIGHT

LEVEL

•LEFT (MONO)

AUX RETURN 2

RIGHT

LEVEL48 V

TRIM

MIC 1OUT

MIC 2OUT

TRIM

OPTIONALLM-3204EEXPANDER

MACKIEMIC PREAMPS

SOURCE ALT 3-4

RET 4 TOCONTROL ROOM ONLY

•LEFT (MONO)

AUX RETURN 3

RIGHT

LEVEL

•LEFT (MONO)

AUX RETURN 4

RIGHT

INSERT(CH’s 1-4)

LO MID HIEQ

LO MID HIEQ

S

S

+-

• •

S

•

• •

S

L MAININSERT

R MAININSERT

+-

+-

•

• • ••

• •

S

S

S

S•

•

•

•SOLOLEVEL

SOLORELAYDRIVER

L FADER

R FADER

TAPEMONITOR

•

•

•

•

•

•

•

•

S

•

S

S

C/R FADER

PHONESLEVEL

•

•

•

•

S

S

S

S

S

R

CONTROLROOM OUT

PHONESOUT

TAPE INLEFT

TAPE INRIGHT

L

R

ALT 3-4OUT

L ( MONO)

R

AUX 1OUT

L ( MONO)

R

AUX 3OUT

AUX 2OUT

AUX 4OUT

•

To Schenectady

S

S

SHIFT

Mackie Designs Inc. is engaged in a continuous program ofproduct evaluation and improvement and reserves the right tochange product specifications at any time without notice.©1995-1998 Mackie Designs Inc. All rights reserved. “Mackie.”is a registered trademark of Mackie Designs Inc. 16042951.2

MACKIE DESIGNS INC. • 16220 WOOD-RED RD. N.E.WOODINVILLE • WA • USA • PHONE TOLLFREE 800/258-6883FAX 425/487-4337 • OUTSIDE THE U.S., PHONE 425/487-4333

absorb mechanical impact.Other circuitry is low-main-tenance, surface-mount.

Besieged with line inputs?The LM-3204's a depend-

able solution.Whether you use it as a

church or club sound rein-forcement mixer, stage orstudio instrument submixer,an effects submixer, aproject or audio productionstudio mixer or for videoapplications, you can be as-sured of several things. First,the LM-3204's sound qualitywill be superb. Second, it'sgoing provide a lifetime oftrouble-free service.

ch. gains @ Unity +84dBuControl room same as mainL/RAlt output: no channelsassigned +105.5dBuAll channels assigned, gainsdown +85.9dBuAll channels assigned, gains@ Unity +83dBuGain Structure Mic: gaindown +10dBu gain up+50dBuLine channel: max gain+30dbuAux return: max gain +20dBuAux send: max gain +15dBuMain L/R: max gain +10dBuSolo: max gain +16dBuMax Input Levels Mic in+14dBu Line in +22dBuTape in +23dBu Aux returnin +22dBuMax Output Levels Main L/Rtape out +22dBuControl room +22dBu Alt+22dBu Aux sends +22dBuImpedances. All outputs60+-bal. 120+-unbal.Mic input ~5k+Line input 10k+ Tape input>10k+Aux return input >10k+Crosstalk. (20Hz+20kHz)Line in to adjacent ch.:@1kHz 0dBu +83dBu orbetter@10kHz 0dB +63dBu orbetterMain L/R output channelgain down +73dBuChannel muted +81dBuPanpot attenuation +70dBuor betterMain faders down +74dBuWeight 14 lbs

Total Harmonic Distortion(1kHz @+14dBu measured20Hz+20kHz)Line in, one channel main L/R0.0022%Control room L/R 0.0024%ALT L/R 0.0016%Aux return in main L/R0.0022%Control room L/R, tape in0.0024%ALT L/R 0.0012%Typical Frequency Response.20Hz+60kHzEqualizationHi shelving @12kHz + 15dBMid peaking @2.5kHz +12dBLo shelving @80Hz + 15dBE.I.N. (Mic 1 and 2) 150+termination20Hz+20kHz +126.5dBu

400Hz+20kHz+127.5dBuInput shorted20hz+20kHz,+138.7dBuC.M.R.R. Mic in maxgain @1kHz 78.5dBuMinimum gain@1kHz 88dBuLine in @ Unity55dBuNoise. (20Hz+20kHzreferenced to 0dBu)Main L/R: mainfaders down, ch.gains down+104.2dBu; Mainfaders @ Unity, ch.gains down +86.6dBuMain faders @ Unity,

SPECIFICATIONS

7/94

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"

9.66

"8

.73"

8.6

5"

9.66"

.75

®