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APPENDIX C: SPECIFICATIONS: TECH STUFF
LM-3204 Owner’s Manual Specs
Noise (20Hz to 20kHz bandwidth, Line inputs to Main
L/R outputs, all channels assigned):
Master fader down, Ch. gains down –104.2dBu
Master fader @ unity, Ch. gains down –86.6dBu
Master fader @ unity, Ch. gains @ unity –84.0dBu
Total Harmonic Distortion
(1KHz @ +14dBu 20Hz–20kHz, Channel input):
Main L/R output .0022%
Control Room output .0024%
Alt 3–4 output .0016%
Crosstalk (1kHz @ 0dBu, 20Hz to 20Khz bandwidth,
channel in to Main Left outputs):
Channel gain down, channels 2–16 at Unity –73dBu
Channel muted, channels 2–16 at Unity –81dBu
Frequency Response (any input to any output):
20Hz to 50KHz +0dB/–1dB
20Hz to 100KHz +0dB/–3dB
Maximum Levels
Mic preamp input +14dBu
All other inputs +22dBu
All outputs +22dBu
Impedances
Mic preamp input 5k
All other inputs 10k
All outputs 120
Equalization
Lo EQ Shelving 80Hz +/–15dB
Mid EQ Peak 2kHz +/–12dB
Hi EQ Shelving 12kHz +/–15dB
Microphone Preamp
E.I.N. (150 terminated, max gain): –129dBm
Power Requirements
120 VAC, 50/60Hz, 60 watts
Weight
LM-3204 console 24 lbs.
CH. LEVEL
level up +15
level up +20
AUX RETURNTAPE INPUT
0
0
INSERT
+22 max in
LINE INPUT GAIN
00
CHANNEL
EQ
lo/hi -15
MIX INSERT
gain up +30
+22 max in
0
-50 trim up
0
MIC INPUT
0
-10 trim dn
+14 max in
lo/hi +15
mid +12
mid -12
0(B)
-6-6
METER FEED
(0dB @ O/P = 0dB @ METERS)
OUTPUT
AUX SEND
0
MIX
00
OUTPUT SECTION
max out +22
FADER OUTPUT
0
to meters
0
CONTROL ROOM
fader up +10
0
max out +22
0
0
0
fader up +10
max out +22
level up 0
00
ALT OUTPUT
max out +22
LM-3204 Gain Path Diagram — all levels in dBu