Crown XLS-402TX User manual

Damping Factor (8 ohm) 10 Hz to 400 Hz: >200.
Crosstalk (below rated power)
at 1 kHz: –82 dB.
at 20 kHz: –58 dB.
Voltage Gain (at maximum output): 31 dB.
Power
Output Power:
Load Impedance: Safe with all types of loads.
Rated for 2 to 8 ohms.
AC Line Voltage and Frequency Configura-
tions Available (±10%): 120 VAC/60Hz and
230 VAC/50 Hz.
XLS 402TX
T
The XLSTX Series of power amplifiers from
Crown represents a new era in affordable,
quality power amplification. The line con-
sists of three models in a uniform, rugged
chassis, incorporating the best of tried-and-
true design principles and innovative features.
XLSTX Series amplifiers are professional stereo
power amplifiers engineered to meet demand-
ing audio requirements—reliably and within
budget. They are THX®-approved.* Plus, every
XLSTX Series amplifier is backed by Crown’s
unequaled Three-Year, No-Fault, Fully-Trans-
ferable Warranty.
With over five decades of experience designing
and building rock-solid products, Crown is the
standard in amp technology. So check out the
affordable, Crown XLSTX Series. They are a
powerful argument for quality and value!
For more details about the XLSTX Series, con-
tact the Crown Technical Support Group at
800-342-6939 or 574-294-8200. Also, visit the
Crown Audio website at www.crownaudio.com.
Specifications
The following applies to units in Stereo mode with 8-ohm loads
and rated input sensitivity unless otherwise specified.
Performance
Sensitivity (volts RMS) for full rated power at
4 ohms: 1.025.
Frequency Response (at 1 watt) 20 Hz to 20
kHz: ±0.75 dB.
Phase Response (degrees at 1 watt)
at 10 Hz: –10.
at 20 kHz: +19.
Signal-to-Noise Ratio (20 Hz to 20 kHz)
A-weighted, below rated power: > 100 dB.
No weighting, below rated power: > 97 dB.
Total Harmonic Distortion (THD) at full band-
width power, from 20 Hz to 1 kHz: < 0.15%.
Intermodulation Distortion (IMD): (60 Hz and
7 kHz at 4:1) from full rated output to –40 dB:
< 0.3%.
Controls
Level: Two front-panel rotary level controls,
one for each channel. Blanking plugs cover
the level controls to prevent tampering.
Power: Front-panel switch; on when in the UP
position.
Filter Switches: One per channel; three-posi-
tion back-panel switches set the internal high-
pass filter frequency. Frequency setting is 30
Hz when switch is in left position; 15 Hz when
switch is centered; and bypassed when switch is
in right position.
Limiter Switch: Back-panel switch offers loud-
speaker protection against moderate amplifier
clip when set to the “IN” position.
Fuse: Provides overload protection.
Indicators
Clip: Two front-panel red LEDs, one for each
channel, illuminate when the channel’s output
signal is being overdriven.
Power: Green front-panel LED indicates
amplifier has been turned on and AC power
is available.
Fault: Yellow front-panel LED illuminates when
amplifier is in protect mode. Also illuminates
briefly during normal power-up when amplifier
is first switched on.
XLSTX SERIES
• THX-approved.
• Simple, reliable design incorporates many
popular features.
• Selectable high-pass filter on each channel
enables amplifier to work more efficiently
when full band-width is not required.
• Pair of linear optocoupler clip limiters pro-
tects loudspeakers from being overdriven.
• Housed in a rugged, all-steel 3U chassis.
• Efficient forced-air fan prevents excessive
thermal buildup.
• Electronically balanced XLR inputs and
binding post outputs (export models feature
touch-proof binding post outputs).
• Features precision detented level controls,
power switch, and four LEDs, which indi-
cate clip for each channel, power and fault
conditions.
• Three-Year, No-Fault, Fully-Transferable
Warranty completely protects your invest-
ment and guarantees its specifications.
Features
TX
* THX is a registered trademark of THX Ltd.

Crown International
P.O. Box 1000
Elkhart, IN 46515-1000
TEL: [phone]
FAX: [phone]FAX
www.crownaudio.com
7/02 134349-2
Crown’s Three-Year, No-Fault, Fully Transferable Warranty
Crown offers a Three-Year, No-Fault, Fully Transferable Warranty for every new Crown ampli-
fier—an unsurpassed industry standard. With this unprecedented No-Fault protection, your new
Crown amplifier is warranted to meet or exceed original specifications for the first three years of
ownership. During this time, if your amplifier fails, or does not perform to original specifications,
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 amplifier.
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.
XLS 402TX
Specifications subject to change without prior notice. Latest
information available at www.crownaudio.com.
Crown is a registered trademark of Crown International.
Printed in U.S.A.
© 2002 Crown Audio, Inc.
Input/Output
Input Connectors: One per channel; back-
panel three-pin female XLR input connectors
are provided.
Input Impedance (nominally balanced, nomi-
nally unbalanced): 20 k ohms, 10 k ohms.
Output Connectors: One pair of back-panel,
5-way binding posts per channel; accepts
banana plugs, spade lugs or bare wire. (Euro-
pean models do not accept banana plugs.)
DC Output Offset (shorted input): ±10 millivolts.
Output Signal: Stereo, unbalanced, two-
channel.
Protection
XLSTX Series amplifiers provide extensive pro-
tection and diagnostic capabilities, including
built-in anti-clip limiters, switchable high-pass
filters, output current limiting, DC protection,
fuses, and special thermal protection for the
unit’s transformers.
Construction
Ventilation: Flow-through ventilation from
front to back.
Cooling: Internal heat sinks with forced-air
cooling for rapid, uniform heat dissipation.
Air Volume Requirements (per minute per
unit): 80.15 ft³ (2.27 m³).
Dimensions: EIA Standard 19-inch (48.3-cm)
rack mount width (EIA RS-310-B), 5.25-inch
(13.3-cm) height and 12.6-inch (32.0-cm)
depth behind the mounting surface.
Weight
Net Weight: 31 lbs. (14.0 kg).
Shipping Weight: 38 lbs. (18 kg).