Crown International
1718 W, Mishawaka Rd.
Elkhart, IN 46517-9439
TEL: 574-294-8200
FAX: 574-294-8FAX
www.crownaudio.com
6/05 136712-1D
Input/Output
Input Connector (standard module): One Neutrik
Combo connector for each channel which features a
balanced ¼-inch (6.35-mm) phone jack and a 3-pin
female XLR connector, in parallel with a barrier strip
termination.
Input Stage: Input is electronically balanced and
employs precision 1% resistors.
Input Impedance: Nominally 20 k ohms, balanced.
Nominally 10 k ohms, unbalanced.
Input Sensitivity: Channel independent. Factory set at
1.4 volts for standard 1 kHz, 8 ohm power. 26 dB
gain and 0.775 volt sensitivity available as a Service
Option.
Output Impedance: See Figure 1.
Output Connectors: Four-terminal touch-proof barrier
block.
Output Signal:
Stereo: Unbalanced, two-channel.
Bridge-Mono: Balanced, single-channel. Channel 1
controls are active; Channel 2 should be turned
down.
Protection
Contractor Series amplifi ers are protected against
shorted, open or mismatched loads; overloaded
power supplies; excessive temperature, chain
destruction phenomena, input overload damage and
high-frequency blowups. They also protect loudspeak-
ers from input/output DC, large or dangerous DC off-
sets and turn-on/turn-off transients.
Options
Service Options: SST-4622, SST-3632, SST-4632—
custom two-channel crossover networks with equal-
ization and delay purposely engineered for use with
JBL model 4622, 3632 and 4632 cinema speakers.
SST-SBSC 3632T, SST-SBSC 4632T—custom three-
channel crossover networks with CD-horn equaliza-
tion and mono-summed low-frequency outputs
similarly designed for use with JBL model 3632T and
4632T cinema speakers.
Construction
Rugged steel chassis is formed into a durable
package, then fi nished with environmentally friendly
powder coat for long life and ease of maintenance.
Cooling: Proportional speed fan in CL1 and CL2;
3-speed fan in CL4.
Dimensions:
Width: EIA Standard 19-inch rack mount
(EIA RS-310-B)
Height: 5.25 inches (13.34 cm)
Depth (behind front mounting surface):
CL1 and CL2: 12.25 inches (31.11 cm) to back of
amplifi er.
CL4: 16.25 inches (31.11 cm) to back of amplifi er.
CL4: 17.5 inches (14.45 cm) from back of front
rack ears to back of speaker-terminal cover.
Net Weight:
CL1: 32.6 lb (14.8 kg)
CL2: 40.3 lb (18.3 kg)
CL4: 33.3 lb (15.1 kg).
Shipping Weight:
CL1: 32.6 lb (17.5 kg)
CL2: 46.3 lb (21.0 kg)
CL4: 39.3 lb (17.8 kg).
Specifi cations subject to change without prior notice. Latest
information available at www.crownaudio.com.
Crown and Crown Audio are registered trademarks of Crown
International. Other trademarks are the property of their
respective owners. Printed in U.S.A.
© 2005 Crown Audio®, Inc.
MODE
STEREO BRIDGE
WARNING - TO REDUCE THE
RISK OF FIRE OR ELECTRICAL SHOCK,
DO NOT EXPOSE THIS EQUIPMENT
TO RAIN OR MOISTURE.
AVIS - RISQUE DE CHOC
ELECTRIQUE - NE PAS OUVRIR.
AVERTISSEMENT - ENERGIE
ELECTRIQUE DANGEREUSE VIOR LA
NOTICE DE FONCTIONNEMENT.
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
CLASS 2 WIRING PERMITTED
IN STEREO
CLASS 1 WIRING REQUIRED IN
BRIDGE MONO
FOR BRIDGE MONO, USE
CH1 + (4/8 ) FOR + AND
CH2 + (4/8 ) FOR - ONLY
Ω
Ω
RESET
CH1
CH1
CH2
OUTPUTS
CH2
MODEL: CL1
~AC VOLTS: AMPS: HZ
RATED OUTPUT: W/CH @ OHMS
ELECTRONIC EQUIPMENT
ELKHART, IN 46517
MADE IN U.S.A.
S\N 000000
0000
Figure 1 CL1, CL2, CL4 Output Impedance
Crown’s Three-Year, No-Fault, Fully Transferable Warranty
Crown offers a Three-Year, No-Fault, Fully Transferable Warranty for every new Crown amplifi er—an unsur-
passed industry standard. With this unprecedented No-Fault protection, your new Crown amplifi er is war-
ranted to meet or exceed original specifi cations for the fi rst three years of ownership. During this time, if your
amplifi er fails, or does not perform to original specifi cations, it will be repaired or replaced at our expense.
About the only things not covered by this warranty are those losses normally covered by insurance and those
caused by intentional abuse. And the coverage is transferable, should you sell your amplifi er.
See your authorized Crown dealer for full warranty disclosure and details. For customers outside of the USA,
please contact your authorized Crown distributor for warranty information or call 574-294-8200.
CL1, CL2
CL4