page 29
CH and CL Series Power Amplifiers
Operation Manual
Minimum Guaranteed Power CH1 CH2 CH4
120V/60 Hz Units, Dual mode, per channel, both channels driven
1 kHz at rated THD
2 ohms
4 ohms
8 ohms
70V
450W
275W
300W
660W
400W
600W
1,400W
1,200W
600W
1,200W
120V/60 Hz Units, Bridge mono mode
1 kHz at rated THD
4 ohms
8 ohms
140V
900W
600W
1,320W
1,200W
2,800W
2,400W
2,400W
Performance CH1 CH2 CH4
Frequency Response (at 1 watt, 20 Hz - 20 kHz) ± 0.1 dB ± 0.1 dB ± 0.25 dB
Phase Response (at 1 watt, 20 Hz - 20 kHz) ± 15° ± 15° ± 15°
Signal to Noise Ratio below rated 1 kHz power (A-weighted) > 105 dB > 105 dB > 100 dB
Total Harmonic Distortion (THD) at rated 1 kHz power, 20 Hz to 20 kHz < 0.5% < 0.5% < 0.5%
Intermodulation Distortion (IMD) 60 Hz and 7 kHz at 4:1,
from rated power to 30 dB below rated power at 8 ohms
< 0.1% < 0.1% < 0.5%
Damping Factor (8 ohm), 10 Hz to 400 Hz > 600 > 600 > 1000
Crosstalk (below rated power, 20 Hz to 20 kHz)
*at 10 kHz
> 50 dB > 50 dB > 50 dB*
Common Mode Rejection (CMR), 20 Hz to 1 kHz > 40 dB > 40 dB > 40 dB
DC Output Offset (Shorted input) ± 10 mV ± 10 mV ± 10 mV
Input Impedance nominally balanced, nominally unbalanced 20 kilohms, 10 kilohms 20 kilohms, 10 kilohms 20 kilohms, 10 kilohms
Load Impedance (Note: Safe with all types of loads)
Stereo
Bridge Mono
4/8 and 16 ohm (70V)
8/16 and 32 ohms(140V)
4/8 and 8 ohm (70V),
8/16 and 16 ohms (140V)
4/8 and 4 ohm (70V)
8/16 and 8 ohm (140V)
Voltage Gain (at maximum level setting), 1 kHz, 1.4V sensitivity
4/8 Ohm Operation
70V Operation
30.5 dB
34.0 dB
32.1 dB
34.0 dB
34.0 dB
34.0 dB
Required AC Mains (voltages ± 10%) 100V, 7.6A, 60 Hz
120V, 6.3A, 60 Hz
230-240V, 3.5A, 60 Hz
100V, 11.4A, 60 Hz
120V, 9.5A, 60 Hz
230-240V, 5.0A, 60 Hz
100V, 8.5A, 50/60 Hz
120V, 7.1A, 50/60 Hz
230-240V, 3.7A, 50/60 Hz
Cooling Proportional speed fan Proportional speed fan 3-speed Fan-On-Demand
Dimensions: Width, Height, Depth 19 in. (48.3 cm) x 5.25 in. (13.34 cm) x
12.25 in. (31.11 cm)
19 in. (48.3 cm) x 5.25 in. (13.34 cm) x
12.25 in. (31.11 cm)
19 in. (48.3 cm) x 5.25 in. (13.34 cm) x
16.25 in*. (36.56 cm)*
Net Weight, Shipping Weight 40.6 lb (18.4 kg ) , 46 . 6 lb ( 2 1.1 k g ) 4 8.3 l b ( 21 . 9 k g ), 5 4 . 3 lb ( 2 4 .6 k g ) 3 3 .3 l b ( 15 . 1 k g ), 3 9 . 3 lb ( 1 7 .8 k g )
The following specifications apply to all models in Dual 8/4 ohm mode with 8-ohm loads unless otherwise specified.
7 Specifications
* CH4 depth is 17.5 in. (14.45 cm) from back of front rack ears to back of speaker-terminals cover.
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