Crown CL1 User Manual download pdf

Crown Audio, Inc.

P.O. Box 1000

Elkhart, IN 46515-1000

TEL: 574-294-8200

FAX: 574-294-8FAX

www.crownaudio.com

CL1

7/03 131956-1A

Speciﬁcations subject to change without prior notice. Latest

information available at www.crownaudio.com.

Crown

is a registered trademark of Crown International, Inc.

Printed in U.S.A.

Architectural & Engineering Speciﬁcations

C O N T R A C T O R S E R I E S

CL1 (120V, 60 Hz models)

The ampliﬁer shall be a solid-state two-channel model. Each ampliﬁer

channel shall have the ability to operate individually, or paired with the

other channel in a bridged conﬁguration to provide increased output volt

age 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 recessed detented rotary control

for each channel to adjust input level, a recessed switch to select Stereo

or Bridge modes of operation, and a reset switch for the AC mains circuit

breaker.

Internal controls shall include a jumper block to allow selection of input

sensitivity of either 0.775V or 26 dB gain as a service option. Sensitivity

shall be factory-set to 1.4V.

Front panel indicators shall include a green LED to indicate that the ampli-

ﬁer is turned on and power is applied; a red LED for each channel which

shall blink to indicate any of the following 5 conditions: 1) When the

ampliﬁer is ﬁrst powered up, until the unit is ready for operation. 2) If

the heatsinks reach a temperature above normal working limits. 3) If the

transformer thermal protection circuit is activated. 4) If the ampliﬁer wires

develop a short circuit, and 5) should the ampliﬁer output stage become

non-operational; a red LED for each channel which shall turn on to indicate

when distortion of any type becomes audible in the ampliﬁer output; and

a green LED for each channel which shall ﬂash dimly to indicate when a

low-level signal (> -40 dBm) is present at the input of the ampliﬁer.

Rear-panel connectors shall include a combination XLR and ¼-in (6.35 cm)

phone connector in parallel with a three-terminal barrier block for each

channel for balanced input connection (on the standard input module);

a four-terminal touch-proof barrier block for output connection (on the

standard output module); and an RJ11 jack for connection to an external

circuit for the purpose of remotely monitoring fault conditions.

The ampliﬁer power requirements shall be 120 VAC, 6.3 A at 60 Hz. A

detatchable IEC 15A to NEMA 5-15P AC line cord shall be provided for AC

connection. Typical quiescent power draw shall be 60 watts.

The ampliﬁer chassis shall be constructed of steel with a durable black

ﬁnish. The ampliﬁer shall employ a cooling system consisting of internal

heat exchangers, along with a variable-speed cooling fan which shall oper-

ate 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 Stan

dard (RS-310-B) rack mounting. The ampliﬁer shall be 5.25 inches (13.34

cm) tall and 12.25 inches (31.11 cm) deep behind the rack-mounting

surface. The ampliﬁer shall weigh 32.6 pounds (14.79 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.

The power ampliﬁer shall meet or exceed the following performance criteria

(ampliﬁer in stereo mode with 8 ohm loads and an input sensitivity of

26 dB gain, 1 kHz at rated power unless otherwise speciﬁed): Load imped

ance (safe with all types of loads): 2, 4 & 8 ohm Stereo; 4, 8 & 16 ohm

Bridge. Voltage gain, 1 kHz, 1.4V sensitivity: 30.5 dB at 4/8 ohm. Output

Power at 1 kHz at rated THD; in Stereo mode at 8 ohms: 275 watts per

channel; in Stereo mode at 4 ohms: 450 watts per channel; in Stereo mode

at 2 ohms: 560 watts per channel; in Bridge mode at 8 ohms: 900 watts;

in Bridge mode at 4 ohms: 1,100 watts. Frequency Response, 20 Hz to 20

kHz at 1 watt: ±0.1 dB. Phase Response: ±15 degrees deviation from linear

phase from 20 Hz to 20 kHz at 1 watt. Signal to Noise Ratio, A-Weighted:

Better than 105 dB below rated 1-kHz power. Total Harmonic Distortion

(THD), 1 kHz at rated power: 0.5% or less true THD from 20 Hz to 20 kHz.

Intermodulation Distortion (60 Hz and 7 kHz at 4:1): Less than 0.1% at

rated power to 30 dB below rated power at 8 ohms. Damping Factor (8

ohm): Better than 400 from 10 Hz to 400 Hz. Crosstalk, 20 Hz to 20 kHz:

Better than 50 dB below rated power. Common Mode Rejection (CMR):

Better than 40 dB from 20 Hz to 1 kHz. DC Output Offset (Shorted Input):

±10 mV.

The ampliﬁer shall be designated the Crown CL1.

CL1 (120V, 60 Hz models) 1

Summary of Contents

Page 1 - CL1 (120V, 60 Hz models)

Crown Audio, Inc.P.O. Box 1000Elkhart, IN 46515-1000TEL: 574-294-8200FAX: 574-294-8FAXwww.crownaudio.comCL17/03 131956-1A Speciﬁcations subject to

Crown CL1 User Manual

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Crown CL1 User Manual

Browse online or download User Manual for Audio amplifiers Crown CL1. 131956-1A_7-03_CL1 a&e spec sheet.indd

Summary of Contents

More documents for Audio amplifiers Crown CL1

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