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Specifications 21
—Owner’s Manual
Specifications
General specifications
• 0 dB is referenced to 0.775 Vrms.
Frequency response
20 Hz–20 kHz +1 dB, –3 dB @+4 dB into 600Ω
(GROUP OUT, AUX OUT, ST OUT, MONO OUT)
Input gain control: minimum
Total harmonic distortion
Less than 0.1%, @20 Hz–20 kHz, +14 dB into 600Ω
(GROUP OUT, AUX OUT, ST OUT, MONO OUT)
Hum & noise
(Average, Rs=150Ω
with 20 Hz–20 kHz BPF)
–128 dB equivalent input noise
–95 dB residual output noise (GROUP OUT, AUX OUT, ST OUT, MONO OUT)
–86 dB
(GROUP OUT, ST OUT, MONO OUT)
Master fader: nominal level
All channel faders: minimum
All channel assign switches: off
–81 dB
(AUX OUT)
Master fader: nominal level
All channel faders, all AUX level controls:
minimum
–64 dB (68 dB S/N)
(GROUP OUT, AUX OUT, ST OUT)
Master fader, one channel fader, AUX level
control: nominal level, Assign switch: on
One channel gain control: maximum
Maximum voltage gain
84 dB CH IN to ST OUT
84 dB CH IN to GROUP OUT
58 dB ST IN to ST OUT
58 dB ST IN to GROUP OUT
Crosstalk
(at 1 kHz)
70 dB adjacent input
70 dB input to output
CH input gain control 44 dB variable
CH input PAD 0 dB/26 dB
CH input HPF 80 Hz 12 dB/oct
CH input equalization
±15 dB maximum
HIGH 10 kHz shelving*
MID 250 Hz–5 kHz peaking
LOW 100 Hz shelving*
* Turn over/roll off frequency of shelving: 3 dB below maximum variable level.
ST input equalization
±15 dB maximum
HIGH 10 kHz shelving*
MID 2.5 kHz peaking
LOW 100 Hz shelving*
* Turn over/roll off frequency of shelving: 3 dB below maximum variable level.
Meters 13 points LED meters x4 (GROUP 1–4 /ST L R, PFL•AFL•TAPE IN L R)
CH peak indicators Red LED on each channel turns on when Post EQ signal reaches the level –3 dB below clipping.
Phantom power +48 V is supplied to electrically balanced inputs.
Power requirement
USA and Canada: 120 V AC 60 Hz
Other: 230 V AC 50 Hz
Power consumption GF24/12: 70 W, GF16/12: 70 W, GF12/12: 70 W
Dimensions (WxHxD)
GF24/12: 938×157×487 mm
GF16/12: 701×157×487 mm
GF12/12: 587×157×487 mm
Weight GF24/12: 20 kg, GF16/12: 16 kg, GF12/12: 14 kg