Crown Audio Pulse 4X300 - Manual

Crown International
P.O. Box 1000
Elkhart, IN 46515-1000
TEL: 219-294-8200
FAX: 219-294-8FAX
www.crownaudio.com
Controls: Power switch, bridge mode switches,
detented level controls (these may be made
tamper-proof).
Power
Output Power:
PULSE
4X300
P U L S E S E R I E S
Crown’s Three-Year, No-Fault, Fully Transferable Warranty
Crown offers a Three-Year, No-Fault, Fully Transferable Warranty for every new Crown ampli-
fi er—an unsurpassed industry standard. With this unprecedented No-Fault protection, your new
Crown amplifi er is warranted 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
219-294-8200. Specifi cations subject to change without prior notice. Latest
information available at www.crownaudio.com.
Crown is a registered trademarks of Crown International. Other
trademarks are the property of their respective owners. Printed
in U.S.A.
© 2001 Crown Audio, Inc.
T T he Pulse Series amplifi ers are high per-
formance professional power amplifi ers
capable of delivering major power output
from a new generation of switched mode power
supplies. All Pulse Series amplifi ers are housed
in the same size 2U cases and feature light,
powerful switching power supplies along with
massive heatsinks and two dual-speed fans.
Microprocessor supervision of the power sup-
plies, protection and thermal systems ensures
that the amplifi er is always operating correctly
thereby protecting both the amplifi er and your
speakers from failure.
Pulse Series amplifi ers are as equally at home
in critical fi xed installations and in demand-
ing, live touring sound environments. Capable
of maintaining excellent performance when
being driven to their limit with real loud-
speaker loads, Pulse amplifi ers are solid and
reliable—an amp you can count on.
At Crown, sonic performance is always in the
forefront of our minds. Like all Crown amps,
Pulse Series amplifi ers have undergone rigor-
ous testing in order to ensure their sonic qual-
ity and reliability. And every Pulse amplifi er is
backed by Crown’s unequaled Three-Year, No-
Fault, Fully-Transferable Warranty that covers
everything.
For more details about the Pulse Series, con-
tact the Crown Technical Support Group at
800-342-6939 or 219-294-8200. Also, visit the
Crown Audio website at www.crownaudio.com.
Specifi cations
Input Sensitivity: +1 dBu for full output.
Input Impedance: 20 kohm.
Input Connectors: 1/4-inch TRS balanced
phone jack and Female XLR.
Distortion: <0.006% THD, 1 kHz, 1 dB below
clip, 22 kHz measurement bandwidth.
Frequency Response: 20 Hz to 20 kHz, +0/–0.2
dB; <2 Hz to >120 kHz +0/–3 dB.
08/01 133682-1
Indicators: AC Present, Operate, Signal, Bridge,
Clip, Temp, Fault.
Protection Microprocessor supervised: Over-
temperature, DC on outputs, output stage over-
load, inrush current surge, power fail and
brownout.
Noise: <–100 dB ref. full output 20 Hz to 20 kHz
measurement bandwidth.
Slew Rate: >50 V/microsecond.
Damping Factor: >200 ref. 8 ohm.
Output Connectors: Binding post or Speakon ®
options.
AC Power: 230 volts AC nominal, 2200VA, all
channels driven.
Dimensions: 89mm (3.5 in.) x 460 mm (18.2
in.) x 483 mm (19 in.).
Weight: 11 kg (24 lbs.).
1 kHz
Power
330W**
300W
170W
660W**
600W
4x300
*1 kHz Power: refers to maximum average power in watts
at 1 kHz with 0.1% THD+N.
*
2-ohm Dual (per channel)
4-ohm Dual (per channel)
8-ohm Dual (per channel)
4-ohm Bridge-Mono
8-ohm Bridge-Mono
**Note: 2 ohm and 4 ohm bridge are at 1% THD.
• Switch Mode Power Supply delivers great
performance without the weight.
• Microprocessor supervision of power sup-
plies provides overall system protection.
• Accurate front-panel indicators and level
controls.
• Choice of balanced XLR and ¼-inch phone
inputs.
• Choice of Speakon ® and/or binding post
outputs.
• Four-channel operation for increased system
fl exibility.
• All this performance and reliability in only
2 rack spaces.
Features