7
AM442D USB / AM642D USB
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SPECIFICATIONS
AM442D USB AM642D USB
Inputs
Total Channels 8 10
Balanced Mono Mic / Line Channel 5 6
Balanced Mic / Stereo Line channel - 2
Balanced Stereo Line Channel 3 2
AUX Return 3 stereo 2 stereo
2T Input Mini stereo and stereo RCA Mini stereo and stereo RCA
Outputs
Main L/R Stereo 2 x 1/4” TRS, Bal. & 2 x XLR 2 x 1/4” TRS, Bal. & 2 x XLR
Group 2 2
Rec Out Mini stereo and stereo RCA Mini stereo and stereo RCA
CTRL RM L/R 2 x 1/4” TS 2 x 1/4” TS
Phones 1 1
Channel Strips 8 10
EFX Send 2 3
Pan/Balance Control Yes Yes
Volume Controls 60mm fader 60mm fader
Inserts 5 6
Master Section
Phones Level Control Yes Yes
Main L/R Level Control 60 mm fader 60 mm fader
Level Meter 13-segment 13-segment
Phantom Power Supply +48V DC +48V DC
Frequency Response (Mic input to any output)
20Hz ~ 60KHz +0/-1 dB +0/-1 dB
20Hz ~ 100KHz +0/-3 dB +0/-3 dB
Crosstalk (1KHz @ 0dBu, 20Hz to 20KHz bandwidth,
channel in to main L/R outputs)
Channel fader down, other channels at unity <-90 dB <-90 dB
Noise (20Hz~20KHz; measured at main output, Chan-
nels 1-4 unit gain; EQ flat; all channels on main mix;
channels 1/3 as far left as possible, channels 2/4 as
far right as possible. Reference=+6dBu)
Master @ unity, channel fader down -86.5 dBu -86.5 dBu
Master @ unity, channel fader @ unity -84 dBu -84 dBu
S/N ratio, ref to +4 >90 dB >90 dB
Microphone Preamp E.I.N. (150 ohms terminated,
max gain)
<-129.5 dBm <-129.5 dBm
THD (Any output, 1KHz @ +14dBu, 20Hz to 20KHz,
channel inputs)
<0.005% <0.005%
CMRR (1 KHz @ -60dBu, Gain at maximum) 80dB 80dB
Maximum Level
Mic Preamp Input +10dBu +10dBu
All Other Input +22dBu +22dBu
Balanced Output +28dBu +28dBu
Impedance
Mic Preamp Input 2 K ohms 2 K ohms
All Other Input (except insert) 10 K ohms 10 K ohms
RCA 2T Output 1.1 K ohms 1.1 K ohms