SPECIFICATIONS
AM821X AM1221X AM1621X AM2421X
Inputs
Balanced Mic / Line channel 8 12 16 24
Stereo channel with mic preamp 2 2 2 2
Stereo Aux Returns 2 2 2 2
2T Input Mini stereo and stereo RCA
Outputs
Main L/R Stereo 2 x 1/4” TS, Unbal. & 2 x XLR
Main Mono 1 x 1/4” TS, Unbal. & 1 x XLR
Aux sends 4, 4x 1/4” TS Unbal & 2x XLR
Rec Out with Trim Control Mini stereo and stereo RCA
CTRL RM L/R 2 x 1/4” TS 2 x 1/4” TS 2 x 1/4” TS 2 x 1/4” TS
Phones 1 1 1 1
Channel Strips 10 14 18 26
Aux Sends 4 4 4 4
Pan/Balance Control Yes Yes Yes Yes
Channel On/Mute Yes Yes Yes Yes
Channel Solo(PFL) with metering Yes Yes Yes Yes
LED indicators Mute/Peak, Signal/PFL
Volume Controls 60mm fader 60mm fader 60mm fader 60mm fader
Master Section
Aux Send Masters 4 4 4 4
Master Aux Send Solo(AFL) 4 4 4 4
Stereo Aux Returns 2 2 2 2
Effects Return to Monitor 3 3 3 3
Faders (60 mm) Efx Rtn, Aux 1, Aux 2, Mono, Main L/R
Metering
Number of Channels 2 2 2 2
Segments 12 12 12 12
Phantom Power Supply +48V DC +48V DC +48V DC +48V DC
Switches Master Master Master Master
Effect Processor
(32-bit DSP)
16 effects with one main parameter control, tap delay control,
foot switch jacks (effect on/off, tap)
Frequency Response (Mic input to any output)
20Hz ~ 60KHz +0/-1 dB +0/-1 dB +0/-1 dB +0/-1 dB
20Hz ~ 100KHz +0/-3 dB +0/-3 dB +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 <-90 dB <-90 dB
Noise (20Hz~20KHz; measured at main output, Channels 1-4 unit gain; EQ at; 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 -86.5 dBu -86.5 dBu
Master @ unity, channel fader @
unity
-84 dBu -84 dBu -84 dBu -84 dBu
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