Crown Audio CP660 - Manual

Crown Audio, Inc.
P.O. Box 1000
Elkhart, IN 46515-1000
TEL: 219-294-8200
FAX: 219-294-8FAX
www.crownaudio.com
CP660
11/00 128415-1
Specifications subject to change without prior notice.
Crown is a registered trademark of Crown International, Inc.
Other trademarks are the property of their respective owners.
Printed in U.S.A.
© 2000 Crown Audio, Inc.
Architectural & Engineering Specifications
S I X C H A N N E L A M P L I F I E R
CP660 (120 V, 60 Hz models)
The amplifier shall be a solid-state six-channel model employing a dis-
creet-component power design with high-current metal output transis-
tors.
Each amplifier channel shall have the ability to operate individually,
or paired with another channel in a bridged configuration to provide
increased output voltage over that of an individual channel output.
Front panel controls shall include a rocker switch for selecting power
on and off. Rear panel controls shall include a rotary control for each
channel to adjust input level, and a switch for each pair of channels to
select Dual or Bridge modes of operation.
Front panel indicators shall include a green LED for each channel to signal
audio output; a yellow LED for each channel to signal audible distortion in
the output; a green LED to signal that the ampifier is turned on and power
is applied; a red LED to signal when the maximum operating temperature
of the amplifier is exceeded. This LED shall remain illuminated until the
amplifier has returned to a safe operating temperature.
Rear-panel connectors shall include a three-terminal barrier block for
each channel for balanced input connection, and a pair of color-coded
5-way binding posts for each channel for output connection.
The amplifier power requirements shall be 120 VAC at 60 Hz. A NEMA
5-15P type AC line connector shall be provided on the attached AC power
cord.
The amplifier chassis shall be constructed of steel with a durable black
finish. The amplifier front panel shall include a Lexan ® overlay and air
filter media behind a detachable grille. The amplifier shall employ a cool-
ing system consisting of internal heat exchangers, along with a variable-
speed cooling fan which shall operate according to internal thermal
demand. Airflow through the chassis shall be from front to rear.
The dimensions of the amplifier shall allow for 19 inch (48.3 cm) EIA
Standard (RS-310-B) rack mounting. The amplifier shall be 3.5-inches
(8.9-cm) tall, and 12.75-inches (32.3-cm) deep behind the front rack-
mounting surface.
Center of gravity of the ampifier shall be 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. Shipping weight of the amplifier shall be 25 lbs.
(11.4 kg).
The amplifier shall be protected against shorted, open or mismatched
loads; overloaded power supplies; excessive temperature; chain destruc-
tion phenomena; input overload damage; and high-frequency blowups.
The amplifier shall protect loudspeakers from input/output DC, large or
dangerous DC offsets and turn-on/turn-off transients.
Input Impedance of the amplifier shall be nominally 20 k ohms, balanced;
nominally 10 k ohms, unbalanced. Input Sensitivity shall be 0.7 volts
for standard 1-kHz power at 8 ohms. Output Impedance of the amplifier
shall be less than 32 milliohms. DC Output Offset shall be less than ±50
millivolts.
The power amplifier shall meet or exceed the following performance
criteria. Output Power in Dual mode: 130 watts, one channel/one load at 4
ohms; 90 watts, one channel/one load at 8 ohms; 100 watts, 4 channels/4
loads at 4 ohms; 70 watts, 4 channels/4 loads at 8 ohms; 75 watts, 6
channels/6 loads at 4 ohms; 60 watts, 6 channels/6 loads at 8 ohms in
Dual mode. Output Power in Bridge mode: 250 watts, 2 channels/one
load at 8 ohms; 200 watts, 4 channels/two loads at 8 ohms; 150 watts,
6 channels/three loads at 8 ohms. Frequency Response: +0/–1 dB from
20 Hz to 20 kHz at 1 watt. Phase Response: ±15 degrees from 20 Hz to
10 kHz at 1 watt. Signal to Noise Ratio, A-Weighted: Better than 100 dB
below rated 1 kHz power at 8 ohms. Total Harmonic Distortion (THD):
rated power, 0.3% or less true THD. Intermodulation Distortion (IMD):
(60 Hz and 7 kHz at 4:1) Less than 0.25% at rated power to 35 dB
below rated power at 8 ohms. Damping Factor: Greater than 250 from
20 Hz to 400 Hz.
The amplifier shall be designated the Crown CP660.