Specifications; Bias Setting - Ground Zero URANIUM Series Owner's Manual

Model
Amplifier Type
Output Power (RMS) @ 4 Ω
CEA-2006-A (@ 1 kHz)
Output Power (RMS) @ 2 Ω
CEA-2006-A (@ 1 kHz)
Output Power (RMS) @ 1 Ω
CEA-2006-A (@ 1 kHz)
Max. Output Power
(bridged mode)
Low Pass Filter
High Pass Filter
Band Pass Filter
Frequency Response
Signal-to-Noise Ratio (SNR)
Overall Distortion (THD+N)
Damping Factor
Input Sensitivity
Recommended Loudspeaker Wiring
Recommended Power Wiring
Fuse(s)
Dimensions (w x h x l)
The BIAS setting affects the operation mode of the amplifier. It is continuously adjustable from <MIN> (actual
Class A/B mode) to <MAX> (close to Class A mode). An amplifier in Class A mode sounds warm and creates
a pleasant atmosphere. Compared to that, the Class A/B mode of an amplifier sounds more direct and dynamic.
Depending on the BIAS setting, the current consumption of the amplifier is growing the closer the operation
comes to the Class A mode leading to an increased temperature. The power rating however, remains identical.
The BIAS can be set using the control on the bottom of the amplifier for each pair of channels, independently.
URANIUM SERIES
GROUND ZERO GZUA SQ AMPLIFIER

Specifications

GZUA 2SQ
2x 175 W
(1% THD+N)
2x 300 W
(1% THD+N)
2x 485 W
(1% THD+N)
1180 W @ 2 Ω
(10% THD+N)
< 0.005%
≥ 2.5 mm²
≥ 25 mm²
3x 30A
209 x 48 x 360 mm
8.23" x 1.89" x 14.17"

BIAS setting

GZUA 4SQ
SQ Class A/B Amplifier
4x 115 W
(1% THD+N)
4x 185 W
(1% THD+N)
n/a
2x 440 W @ 4Ω
(10% THD+N)
20 Hz – 400 Hz / 200 – 4000 Hz (x10)
20 Hz – 400 Hz / 200 – 4000 Hz (x10)
20 Hz – 4000 Hz
10 Hz – 70 kHz ( -3dB)
110 dB (@ 100 Watts A-weighted)
> 800
0.8 – 6 V
≥ 1.5 mm²
≥ 25 mm²
2x 40A
209 x 48 x 360 mm
8.23" x 1.89" x 14.17"
GZUA 6SQ
4x 110 + 2x 160 W
(1% THD+N)
4x 175 + 2x 280 W
(1% THD+N)
n/a
2x 425 + 650 W @ 4Ω
(10% THD+N)
< 0.01%
≥ 1.5 /2.5 mm²
≥ 35 mm²
4x 30A
209 x 48 x 550 mm
8.23" x 1.89" x 21.65"