AM821X AM1221X AM1621X AM2421X
S/N ratio, ref to +4” not 98145.451 >90 dB >90 dB >90 dB >90 dB
Microphone Preamp E.I.N. (150
ohms terminated, max gain)
<-129.5 dBm <-129.5 dBm <-129.5 dBm <-129.5 dBm
THD (Any output, 1KHz @ +14dBu,
20Hz to 20KHz, channel inputs)
<0.005% <0.005% <0.005% <0.005%
CMRR (1 KHz @ -60dBu, Gain at
maximum)
80dB 80dB 80dB 80dB
Maximum Level
Mic Preamp Input +10dBu +10dBu +10dBu +10dBu
All Other Input +22dBu +22dBu +22dBu +22dBu
Unbalanced Output +22dBu +22dBu +22dBu +22dBu
Balanced Output +28dBu +28dBu +28dBu +28dBu
Impedance
Mic Preamp Input 2 K ohms 2 K ohms 2 K ohms 2 K ohms
All Other Input (except insert) 10 K ohms 10 K ohms 10 K ohms 10 K ohms
All other output 100 ohms 100 ohms 100 ohms 100 ohms
RCA 2T Output 1.1 K ohms 1.1 K ohms 1.1 K ohms 1.1 K ohms
Equalization 3-band, +/-15dB 3-band, +/-15dB 3-band, +/-15dB 3-band, +/-15dB
Low EQ 80Hz 80Hz 80Hz 80Hz
Mid EQ (mono channel)
100-8k Hz,
sweepable
100-8k Hz,
sweepable
100-8k Hz,
sweepable
100-8k Hz,
sweepable
Mid EQ (stereo channel) 800, 3k Hz 800, 3k Hz 800, 3k Hz 800, 3k Hz
Hi EQ 12 kHz 12 kHz 12 kHz 12 kHz
Low cut lter (on mono channel) 75 Hz (-18 dB/oct) 75 Hz (-18 dB/oct) 75 Hz (-18 dB/oct) 75 Hz (-18 dB/oct)
Low pass lter on main mono output
60-160 Hz variable
(-12 dB/oct)
60-160 Hz variable
(-12 dB/oct)
60-160 Hz variable
(-12 dB/oct)
60-160 Hz variable
(-12 dB/oct)
Built-in Switching Power Supply
100-240 VAC, 50/60
Hz
100-240 VAC, 50/60
Hz
100-240 VAC, 50/60
Hz
100-240 VAC, 50/60
Hz
Net Weight 7.2 kg (15.9 lbs) 8.7 kg (19.2 lbs) 10.5 kg (23.1 lbs) 13.5 kg (29.7 lbs)
Dimensions (WxHxD)
510x112x437.2 mm
(20”x4.4”x17.2”)
642x112x437.2 mm
(25.3”x4.4”x17.2”)
774x112x437.2 mm
(30.5”x4.4”x17.2”)
1038x112x437.2 mm
(40.9”x4.4”x17.2”)
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