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32x2x2 STEREO LINE MIXER
The
LM-3204 Line
Mixer combines exceptional sound quality
with up to forty lmono ine
inputs in five rack spaces.
It features sixteen stereo
(16x2) inputs plus four
stereo (4x2) AUX returns.
Additional inputs can be
added in multiples of 16
stereo channels with the
LM-3204E Expander unit.
Proven Mackie
features in a line
mixer configuration.
Naturally, the LM-32 04
has our CR-1604 and Micro Series 1202's best
points: luxurious headroom, Unity gain structure,
+4dBu internal operating
levels, intuitive layout and
in-depth metering. It has
our 3-band equalization at
musically useful points:
12kHz shelving treble for
more sizzle, instead of the
conventional 10kHz. 2.5Hz
peaking midrange. And
80Hz bass instead of
100Hz.
It has our
“four buses in a 2-bus
board” ALT 3-4 feature.
ALT 3-4 gives you an extra
stereo output that each
channel can be assigned to
at the touch of a button.
The LM-3204 shares the
same Mackie Mix Amp architecture as our proven
CR-1604 and MicroSeries
1202. Like our other compact mixers, it is designed
to handle hot inputs on all
channels without exhausting headroom.
Two mic preamps.
Even though the
LM-3204 is a line mixer ,
we wanted to increase its
utility in live applications.
So we added two of our
proven mic preamplifiers, a
design well known for its
high headroom and ultralow noise. Both mic
preamps have trim controls, balanced XLR inputs
and 1/4" outputs. The outputs can be patched into
7/1/95
RELATED PRODUCTS
LM-3204E Expander
MixerMixer Combiner
MORE INFORMATION
LM-3204 ARCHITECTS’ AND
ENGINEERS’ SPECIFICATIONS
“IN YOUR F A CE”
ALL-PRODUCT BROCHURE
FEATURES
■ 40 inputs in 5 channels
■ 16 st ereo 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 level
control
■ Tape Monitor section
■ Headphone output with
level control
■ 4 stereo inserts
■ Expandable with the
LM-3204E
®
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LM-3204E Exp ander
LEFT (MONO)
LINE IN
BAL/UNBAL
INPUTS
RIGHT
LINE IN
•
STEREO
CHANNEL
1 of 16
any of the LM-3204's 16
channels.
Signal Present LEDs on
every channel.
The
LM-3204's
–20dB
LEDs light
whenever
there is a
signal level
of +20dBu
at 1kHz or
above at
the inputs
of that channel strip. In
flicker or light almost constantly when there is
activity in that channel,
and it basically serves as a
convenient way of figuring
out what's plugged into
where.
New monitor and
tape features
The LM-32 04 also introduces new features that
provides real flexibility for
both live and studio applications.
It has separate Control
Room and Phone moni-
toring outputs, each with
its own level control. Monitoring controls consist of a
stereo Control Room fader,
the Phones level control
(with a handy Phones jack
just below it), and the Tape
Monitor switch. Control
Room and Phone monitor
outputs always share the
same sources:
■ The main Left and Right
buses under normal
conditions;
■ The output of your tape
recorder (or some other
practice, this LED will
L MAIN
CLIP
INSERT
•
•
R MAIN
INSERT
•
•
RL METER
10
7
4
2
0
-2
-4
-7
-10
-20
-30
-40
MAIN 1-2
ALT 3-4
AUX 1
AUX 3
SOLO
AUX 4
LRLRLRL
•
•
INSERT
•
•
•
•
•
(CH’s 1-4)
•
INSERT
(CH’s 1-4)
CLIP LED
-20 LED
BALANCE
•
•
•
•
CONTROL
+
-
•
+
-
LEVEL
LO MID HI
LO MID HI
SOLO
EQ
EQ
•
MUTE/
ALT 3-4
•
•
•
SHIFT
AUX 1/3
•
•
•
•
•
•
•
•
AUX 2/4
AUX 2
R
•
•
•
•
•
•
•
CONTROL
L
R
S
S
•
•
•
•
LEFT (MONO)
AUX RETURN 1
RIGHT
LEFT (MONO)
AUX RETURN 2
RIGHT
LEFT (MONO)
AUX RETURN 3
RIGHT
LEFT (MONO)
AUX RETURN 4
RIGHT
•
•
SOURCE ALT 3-4
•
•
LEVEL
LEVEL
LEVEL
LEVEL
RET 4 TO
CONTROL ROOM ONLY
•
•
S
S
•
•
•
•
MACKIE
MIC PREAMPS
•
•
•
48 V
•
•
•
•
••
•
•
•
OPTIONAL
LM-3204E
EXPANDER
TRIM
+
-
+
-
TRIM
MIC 1
OUT
MIC 2
OUT
To Schenectady
•
•
•• •• •••••• •••
•
•
•
•
•
•
•
•
S
•
S
•
S
S
•
•
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7/1/95
LM-3204E Expander
source patched into the
Tape In jacks) when the
Tape Monitor switch is
pushed, or;
■ The stereo solo buses
whenever any Solo
switch is pressed. The
solo circuits override the
Tape Monitor switch.
In the up position, the
Tape Monitor switch
selects the main Left and
Right bus outputs for the
monitor circuits and the
meters. In the down position, the T ape Monitor
switch selects the T ape
L FADER
+
•
-
R FADER
+
•
-
•
•
TAPE
MONITOR
SOLO
LEVEL
•
SOLO
RELAY
DRIVER
S
S
Inputs for the monitor
circuits and the meters.
Control Room outputs are
provided for connection
to a power amplifier
(without tying up your
headphone output).
The LM-32 04's four
stereo Aux returns include
two new features:
Source ALT 3-4 switch
for AUX Return 3. With
the switch up, AUX Return
3 is just what it's advertised to be: an AUX
Return. When the Source
ALT 3-4 switch is down,
•
•
C/R FADER
•
•
•
•
PHONES
LEVEL
S
S
S
S
S
S
S
S
LEFT
MAIN
OUT
RIGHT
MAIN
OUT
L
CONTROL
ROOM OUT
R
PHONES
OUT
TAPE IN
LEFT
TAPE IN
RIGHT
L
ALT 3-4
OUT
R
L ( MONO)
AUX 1
OUT
R
AUX 2
OUT
L ( MONO)
AUX 3
OUT
R
AUX 4
OUT
AUX Return 3 inputs are
disconnected. Instead,
the outputs of the ALT 34 buses are routed into
the AUX Return 3 control
and circuitry. T his allows
you to use ALT 3-4 as a
pair of submix buses and
then remix them back
into the main Left and
Right buses.
AUX Return to Con-
trol Room Only for AUX
Return 4. When this
switch is up, AUX Return
4 functions normally.
When the switch is
down, the AUX Return 4
is disconnected from the
main Left and Right
buses and is reconnected
to the control room
monitor and headphone
circuits (where it is mixed
back in with Left and
Right signal on its way to
the Monitor section). This
allows you to wet monitor or send performers a
cue or click feed without
having it go onto tape.
Main Outputs are electronically balanced and
capable of driving recorders at either +10dBV or
+4dBu. 1/ 4" TS Tape In
jacks provide a monitor
return for deck output.
Tape In jacks are routed
through the Tape Monitor
switch in the Main Output section which can
send the signal to the
Control Room and
Phones buses. The LM-
3204 also has four unbalanced RCA-type connectors
with Out RCA jacks connected in parallel to the
Main Output jacks.
Expandable with
the LM-3204E.
Need 32, 48 or even 64
stereo line inputs without
adding significant noise or
degrading overall headroom? The LM-3204E is
essentially an LM-3204
without the master section.
It includes 16 stereo channels and four Aux returns.
Connection is via a proprietary ribbon cable. The
LM-3204E also includes a
ribbon cable input so that
expanders can be daisychained.
All the “hidden” things
Mackie is noted for .
Such as a built-in power
supply with IEC cord, builtin RFI protection and sealed
rotary potentiometers. The
LM-3204's front panel circuit board is a horizontal,
through-hole-plated fiberglass slab attached with
solid brass standoffs that
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absorb mechanical impact.
Other circuitry is low-maintenance, surface-mount.
Besieged with line inputs?
The LM-32 04's a depend-
able solution.
Whether you use it as a
church or club sound reinforcement mixer, stage or
studio instrument submixer,
an effects submixer, a
project or audio production
studio mixer or for video
applications, you can be assured of several things. First,
the LM-3204's sound quality
will be superb. Second, it's
going provide a lifetime of
trouble-free service.
LM-3204 LINE MIXER
Dimensions also apply to LM-3204E Expander.
7/94
©1994 MACKIE DESIGNS INC.
17.50"
9.66"8.73"
19.00"
9.66"
SPECIFICATIONS
T otal Harmonic Distortion
(1kHz @+14dBu measured
20Hz+20kHz)
Line in, one channel main L/R
0.0022%
Control room L/R 0.0024%
ALT L/R 0.0016%
Aux return in main L/R
0.0022%
Control room L/R, tape in
0.0024%
ALT L/R 0.0012%
T ypical Frequency Response.
20Hz+60kHz
Equalization
Hi shelving @12kHz + 15dB
Mid peaking @2.5kHz +
12dB
Lo shelving @80Hz + 15dB
E.I.N. (Mic 1 and 2) 15 0+
termination
20Hz+20kHz +126.5dBu
400Hz+20kHz
+127.5dBu
.75
5 rack spaces
(5U)
LM-3204
WEIGHT
21 lbs.
Input shorted
20hz+20kHz,
+138.7dBu
C.M.R.R. Mic in max
gain @1kHz 78.5dBu
Minimum gain
@1kHz 88dBu
Line in @ Unity
55dBu
Noise. (20Hz+20kHz
referenced to 0dBu)
Main L/R: main
faders down, ch.
gains down
+104.2dBu; Main
faders @ Unity, ch.
gains down +86.6
dBu
Main faders @ Unity,
ch. gains @ Unity +84dBu
Control room same as main
L/R
Alt output: no channels
assigned +105.5dBu
All channels assigned, gains
down +85.9dBu
All channels assigned, gains
@ Unity +83dBu
Gain Structure Mic: gain
down +10dBu gain up
+50dBu
Line channel: max gain
+30dbu
Aux return: max gain +20dBu
Aux send: max gain +15dBu
Main L/R: max gain +10dBu
Solo: max gain +16dBu
Max Input Levels Mic in
+14dBu Line in +22dBu
T ape in +23dBu Aux return
in +22dBu
Max Output Levels Main L/R
tape out +22dBu
Control room +22dBu Alt
+22dBu Aux sends +22dBu
Impedances. All outputs
60+-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 or
better
@10kHz 0dB +63dBu or
better
Main L/R output channel
gain down +73dBu
Channel muted +81dBu
Panpot attenuation +70dBu
or better
Main faders down +74dBu
Weight 14 lbs
8.65"
MA CKI E DE SI GNS INC . • 16220 W OOD-RED RD. N.E.
WOODINVILLE • WA • USA • PHONE TOLLFREE 800/258-6883
FAX 425/487 -4337 • OUT SIDE THE U.S., PHONE 425/487-4333
®
Mackie Designs Inc. is engaged in a continuous program of
product evaluation and improvement and reserves the right to
change 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
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