Specifications

INSTALLED SOUND
• 13
T
he CP660 is a six-channel amplifier that will give you super flexibility
and the best watts-to-dollar ratio around. With six independent chan-
nels, the CP660 takes the place of three, two-channel amplifiers, yet still
fits in a standard two-rack-space chassis. It’s ideal for a variety of sur-
round-sound uses, as well as many paging, zoning, and background music
applications. Plus, when you need it, you can easily bridge any pair of
channels for double the power.
`SPECIFICATIONS
Performance
Frequency Response (at 1 watt) 20 Hz to 20 kHz:
+0/-1 dB.
Phase Response: ±15 degrees from 20 Hz to
10 kHz @ 1 watt.
Signal-to-Noise, A-weighted, below rated power:
Better than 100 dB.
Total Harmonic Distortion (THD) at 1 kHz rated
power: < 0.3% true THD.
Intermodulation Distortion (IMD): (60 Hz and 7
kHz @ 4:1) from rated power to 35 dB below rated
power at 8 ohms: <0.25%.
Damping Factor: Greater than 250 from
20 to 400 Hz.
Input Sensitivity: 0.7 volt for rated output.
Input Impedance: 20 k ohms, balanced;
10 k ohms unbalanced.
DC Output Offset: Less than ±50 millivolts.
Load Impedance: Safe with all types of loads.
Rated for 4 and 8 ohms in Dual mode, 8 ohms
in Bridge mode
Required AC Mains: North American units are
120VAC, 60-Hz only; 100 and 240VAC (±10%) 50-
Hz units are available.
AC Line Current (no signal):
100 Volts: 7.8 A
120 Volts: 6.5 A
240 Volts: 3.3 A.
Front Panel Controls
Power on/off rocker switch.
Back Panel Controls
Level control for each channel; three two-position
Dual/Mono switches (Ch. 1&2, Ch. 3&4, Ch. 5&6).
AC line connector, EMA 5-15P (15A) on North
American units.
Front Panel Indicators
Green Signal LED for each channel; yellow Clip LED
for each channel; red Temp LED; green Power LED.
Input Connectors
Balanced three-terminal barrier block connectors.
Output Connector
One set of 5-way, color-coded binding posts for
each channel. The output connectors can accom-
modate banana plugs, double banana plugs, or
wire as large as 10 gauge.
Protection
The CP660 amplifier is protected against shorted,
open or mismatched loads; over-loaded power
supplies; excessive temperature; chain destruction
phenomena; input overload damage; and high-fre-
quency blow-ups. It also protects loudspeakers
from input/output DC, large or dangerous DC off-
sets and turn-on/turn-off transients.
Cooling
Internal heat exchangers with on-demand forced
air cooling.
Dimensions
EIA Standard 19-inch rack mount width (EIA RS-
310-B), 3.5-inch (8.9-cm) height and 12.75-inch
(32.3-cm) depth behind front mounting surface.
Center of gravity is 6 inches (15.2 cm) behind the
front mounting surface and 7 inches (17.8 cm) in
from the outer edge of the left rack ear.
Weight
Net Weight: 30 lbs. (13.0 kg).
Shipping Weight: 37 lbs. (17 kg).
Regulatory Certifications
Other Applications
Note: All measurements are related to 120VAC units 60
Hz in stereo mode with 8-ohm loads at 1-kHz at rated
power unless other otherwise specified. Specifications
for units supplied outside the U.S.A. may vary slightly
at different AC voltages and frequencies.