Crown CL1 User Manual
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8 ohm Stereo (per channel)
1 kHz
Power
275W
450W
560W
900W
1,100W
4 ohm Bridge-Mono
8 ohm Bridge-Mono
2 ohm Stereo (per channel)
4 ohm Stereo (per channel)
CL1
*1 kHz Power: refers to maximum average power in watts
at 1 kHz with 0.5% THD.
*
8 ohm Stereo (per channel)
1 kHz
Power
400W
660W
975W
1,320W
1,950W
4 ohm Bridge-Mono
8 ohm Bridge-Mono
2 ohm Stereo (per channel)
4 ohm Stereo (per channel)
CL2
*1 kHz Power: refers to maximum average power in watts
at 1 kHz with 0.5% THD.
*
CONTRACTOR SERIES
L
ooking for a quality, constant voltage and low
impedance two channel amplifi er for your res-
taurant, nightclub, retail store, school or house
of worship projects? The Crown
®
“Contractor Series”
amplifi ers are designed just for you.
CL Series amplifi ers provide 2, 4 and 8 ohm options
per channel for applications where high power, low
impedance loads are the primary requirement.
All Contractor Series amplifi ers feature Crown’s
exclusive SST (System Solutions Topologies) expan-
sion system. The SST expansion system makes it
easy to tailor your amplifi er to a specifi c application
or to add future technology as it develops.
With an incredibly wide range of power and fea-
ture/benefi ts, Contractor Series amplifi ers give the
professional sound contractor more options. Crown
quality is available at the best dollar-per-watt ratio on
the market.
For more details about the Crown Contractor Series,
contact the Crown Technical Support Group at 800-
342-6939 or 574-294-8200. Also, visit the Crown
Audio website at www.crownaudio.com.
Specifi cations
Note: All measurements apply to amplifi ers in stereo
mode with 8-ohm loads and an input sensitivity
of 26-dB gain, 1-kHz at rated power unless other
otherwise specifi ed. Specifi cations for units supplied
outside the U.S.A. may vary slightly at different AC
voltages and frequencies.
Power
Output Power: See power charts below.
Load Impedance:
Safe with all types of loads.
2, 4 and 8 ohm Stereo.
4, 8 and 16 ohm Bridge.
Voltage Gain, 1 kHz, 1.4V sensitivity:
30.5 dB (CL1), 32.1 dB (CL2), or 34 dB (CL4) into
8 ohms.
AC Line Requirements:
Note: North American units are 60 Hz only. All other
models are 50/60 Hz. Voltages are ±10%.
AC Line Current:
100V: 7.6A (CL1), 11.4A (CL2), or 8.5A (CL4).
120V: 6.3A (CL1), 9.5A (CL2), or 7.1A (CL4).
230-240V: 3.5A (CL1), 5.0A (CL2), or 3.7A (CL4).
AC Line Connector: Detachable 15A IEC connector
with country-specifi c plug.
Performance
Frequency Response, 20 Hz to 20 kHz at 1 watt:
±0.1 dB (CL1, CL2) or ±0.25 dB (CL4).
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 (CL1, CL2) or 102 dB (CL4) 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% (CL1, CL2) or 0.5% (CL4) at rated
power to 30 dB below rated power at 8 ohms.
Damping Factor (8 ohm): Better than 400 (CL1, CL2)
or 700 (CL4) 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.
Controls
Level: A detented rotary level control for each channel
located on the rear panel.
Power: An on/off rocker switch located on the front
panel.
Mode: A two-position switch located on the back
panel which, when turned to “Stereo,” operates
the amplifi er as two independent channels. When
“Bridge” is selected, the amplifi er bridges the two
output channels for twice the output voltage.
Indicators
Signal: A green indicator for each channel which
fl ashes when a very low-level signal (> –40 dBm) is
present at input. May be used for troubleshooting
cable runs.
Clip: A red indicator for each channel which turns
on when distortion becomes audible in the amplifi er
output.
Fault: A red indicator for each channel which indi-
cates amplifi er has muted output. Normally off. Status
may be monitored remotely by plugging into back-
panel RJ11 Fault jack.
Power: A blue indicator that turns on when the ampli-
fi er has been turned on and has power.
Features
• Low impedance compatibility for applications
where high power, low impedance loads are
the primary requirement.
• Rear panel detented level controls allow for
accurate level settings and secure operation.
• “Contractor-Correct” barrier strip output con-
nectors allow for quick and easy connection,
regardless of the load.
• Active crossover with signal routing available
with optional System Solution Topology mod-
ules.
• 5-Way Fault Indicator serves as a valuable
system troubleshooting aid by quickly alerting
the user of potential problems.
• Advanced protection circuitry guards against:
shorted outputs, open circuits, mismatched
loads, DC, general overheating, high-frequency
overloads and internal faults.
• Can be mounted in standard (19-inch (48.3-
cm)) rack, shallow (14-inch (35.56-cm)) rack,
or stacked on top of each other.
• Accurate, uncolored sound with very low
distortion for the best in music and voice repro-
duction.
• Three-Year, No-Fault, Fully Transferable War-
ranty completely protects your investment and
guarantees its specifi cations.
• Crown’s Profi t Protection Plan guarantees
quick, no-questions-asked replacement of your
covered Contractor Series amplifi er should it
fail at any time up to 6 months following date
of installation.
CL1
CL2
CL4
1,400W**
1,200W
600W
2,800W**
2,400W
2 ohm Stereo (per channel)
8 ohm Bridge-Mono
4 ohm Bridge-Mono
8 ohm Stereo (per channel)
4 ohm Stereo (per channel)
CL4
**≥ 200-V line voltage provides 1,800W (2 ohm stereo)
and 3,600W (4 ohm bridge-mono)
1 kHz
Power
*
*1 kHz Power: refers to maximum average power in watts
at 1 kHz with 0.5% THD.
1
2
Summary of Contents
Page 1 - CONTRACTOR SERIES
8 ohm Stereo (per channel)1 kHz Power275W450W560W900W1,100W4 ohm Bridge-Mono8 ohm Bridge-Mono2 ohm Stereo (per channel)4 ohm Stereo (per channel)CL1*1
Page 2 - CL1, CL2
Crown International1718 W, Mishawaka Rd.Elkhart, IN 46517-9439TEL: 574-294-8200FAX: 574-294-8FAXwww.crownaudio.com6/05
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