20 Specifications
GA32/12, GA24/12—Owner’s Manual
Specifications

General specifications

*Turn over/Roll off frequency of shelving: 3 dB below maximum variable level.
Specifications are subject to change without prior notice.
Frequency response 20 Hz–20 kHz +1 dB, –2 dB, +4 dB 600Ω (ST1 OUT, ST2 OUT, MIX OUT, MATRIX OUT)
Total harmonic distortion <0.1% @20 Hz–20 kHz, +14 dB 600Ω (ST1 OUT, ST2 OUT, MIX OUT, MATRIX OUT)
Hum and noise
(Rs=150Ω, 20 Hz–20 kHz)
–128 dB equivalent input noise
–95 dB residual output noise (ST1 OUT, ST2 OUT, MIX OUT, MATRIX OUT)
–83 dB residual output noise
(ST1 OUT)
ST master fader at nominal level.
all channel fader, mix level control: minimum
ST switch: OFF
–78 dB residual output noise
(MIX OUT)
Mix master fader at nominal level.
all channel fader, mix level control: minimum
M1–M4 switch: OFF
–64 dB (68 dB S/N)
(ST1 OUT, MIX OUT)
ST master/mix master fader, one channel fader and mix
level control at nominal level.
one channel gain control: maximum
Maximum voltage gain
84 dB CH IN to ST1 OUT
84 dB CH IN to MIX OUT
58 dB ST IN to ST1 OUT
58 dB ST IN to MIX OUT
Crosstalk at 1 kHz –70 dB adjacent input
–70 dB input to output
Gain control 44 dB variable
Channel input pad 0 dB/26 dB
Channel input HPF 80 Hz 12 dB/oct
Input channel equalization
±15 dB Maximum
HIGH 10 kHz * shelving
HI-MID 400 Hz–8 kHz peaking
LO-MID 80 Hz–1.6 kHz peaking
LOW 100 Hz * shelving
ST input channel equalization
±15 dB Maximum
HIGH 10 kHz * shelving
HI-MID 3 kHz peaking
LO-MID 800 Hz peaking
LOW 100 Hz * shelving
Mix out equalization
±15 dB Maximum
HIGH 10 kHz * shelving
MID 300 Hz–6 kHz peaking
LOW 100 Hz * shelving
Meters 13 points LED x 14
Channel peak indicators An indicator for each channel turns on when the pre-channel fader signal is –3 dB below clipping.
Phantom power +48V (balanced)
Power requirement USA and Canadian 120 V AC 60 Hz
General 230 V AC 50 Hz
Power consumption 120 W
Dimensions (WxHxD) GA32/12: 1372 x 161 x 705 mm GA24/12: 1144 x 161 x 705 mm
Weight GA32/12: 38 kg GA24/12: 34 kg