Crown International
1718 W. Mishawaka Rd.
Elkhart, IN 46517-9439
TEL: 574-294-8200
FAX: 574-294-8FAX
www.crownaudio.com
XLS 402
9/06 139438-1C
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 respec-
tive owners.
© 2006 Crown Audio
®
Inc. Printed in U.S.A.
Architectural & Engineering Specifi cations
X L S S E R I E S
Crown
®
XLS 402
The power amplifi er shall be a solid-state two-channel model.
The amplifi er shall provide extensive protection and diagnostic capabili-
ties, including output current limiting, DC protection, circuit breaker, and
thermal protection.
The front-panel controls shall be two black detented level controls (one for
each channel) and a power switch. The rear-panel controls shall be a circuit
breaker reset switch and a Dual/Bridge-Mono mode switch.
Front-mounted indicators shall be the following: Signal Presence Indica-
tors: Two green LEDs, one for each channel, illuminate when the channel’s
input signal exceeds –40 dBu. Clip Indicators: Two red LEDs, one for each
channel, illuminate when the channel’s output is being overdriven. Power
Indicator: Blue LED indicates amplifi er has been turned on and AC
power is available. Fault Indicator: Two red LEDs illuminate when amplifi er
is in protect mode. Also illuminates briefl y during normal power-up when
amplifi er is fi rst switched on.
The recommended load impedance shall be 4 to 8 ohms per channel in
Stereo, and 8 ohms in Bridge Mono.
The rear-mounted output connectors shall be two 4-pole Speakon
®
con-
nectors (one per channel) and a pair of binding posts per channel. Rear-
mounted input connectors shall be 3-pin balanced XLR connectors.
The power amplifi er shall meet or exceed the following performance
criteria: Sensitivity for full rated power at 4 ohms: 1.25 V. Rated output
with both channels driven with 0.5% THD (at 1 kHz) in Dual mode: 450
watts per channel into 4 ohms and 300 watts per channel into 8 ohms.
Rated output with 0.5% THD (at 1 kHz) in Bridge-Mono mode: 900 watts
into 8 ohms. Frequency Response at 1 watt, 22 Hz to 20 kHz: +0 dB, –1
dB. Signal to Noise Ratio below rated power (20 Hz to 20 kHz, inputs
terminated): greater than 100 dB A-weighted. Total Harmonic Distortion
at full rated power, 1 kHz: less than 0.5%. Intermodulation Distortion (60
Hz and 7 kHz at 4:1, from full rated output to –40 dB: less than 0.3%.
Damping Factor (8 ohms): greater than 200 from 10 to 400 Hz. Crosstalk
(below rated power, –75 dB at 1 kHz, –50 dB at 20 kHz. Input Impedance
(nominal): 20 kilohms balanced, 10 kilohms unbalanced. AC Line Voltages
and Frequencies Available (±10%): 120 VAC 60Hz, 100 VAC 50/60 Hz, 220
VAC 50 Hz, 230-240 VAC 50 Hz.
The amplifi er chassis shall be constructed of steel with a durable black
fi nish and shall be designed for fl ow-through ventilation from the front
panel to the back panel. Internal heat sinks with forced-air cooling shall
provide rapid, uniform heat dissipation.
The dimensions of the amplifi er shall allow for 19 inch (48.3 cm) EIA
standard (RS-310-B) rack mounting. The amplifi er shall be 3.5 inches (8.9
cm) tall, and 15.2 inches (38.6 cm) deep.
The amplifi er shall weigh 25.7 pounds (11.7 kg).
The amplifi er shall be designated the Crown XLS 402.
