Crown XTI-4000 Brochure

XTi SERIES

XTi 4000

XTi 4000

The Crown® XTi 4000 power amplifi er shall be a solid-state two-channel
model with a switch-mode universal power supply.

The outputs shall be usable as stereo or bridged-mono modes of opera­tion. The bridged-mono mode shall bridge the outputs to provide increased
output voltage.

The amplifi er shall contain controlled slew-rate voltage circuitry to protect
it against radio frequency interference burnouts. It shall also be protected
from current overload at its output stage. The slew rate of the amplifi er
shall be greater than 30 volts per microsecond in stereo mode.

The amplifi er shall temporarily go into a standby mode if its power trans­former becomes excessively hot and shall automatically resume normal
operation once it has cooled to a safe operating temperature.

Front-panel controls shall include a power on/off switch, a detented input
level control for each channel and three buttons for menu navigation of the
front-panel LCD screen.

The front panel have have the following indicators:
Signal Indicator: Green LED, one per channel, fl ashes when a very low­level signal is present at input. May be used for troubleshooting cable
runs. –10 Indicator: Green LED fl ashes when output signal exceeds –10
dB below clip. –20 Indicator: Green LED fl ashes when output signal level
exceeds –20 dB below clip. Ready Indicator: Green LED, one per channel,
illuminates when the amplifi er is ready to produce audio. Clip Indicator:
Red LED, one per channel, turns on at the threshold of audible distortion.
Thermal Indicator: Red LED, one per channel, illuminates under Fault or
excessive temperature conditions. Power Indicator: Blue LED illuminates
when the amplifi er has been turned on and has power.

Architectural & Engineering Specifi cations

power, 20 Hz to 1 kHz. Input Stage: Input shall be electronically balanced
and shall employ precision 1% resistors. Input Impedance (nominal): 20
k ohms balanced and 10 k ohms unbalanced. Maximum Input Signal: +22
dBu typical. AC Line Current: 8.0A. At idle, the amplifi er shall draw 90 watts
or less. Operating Temperature: 0° C to 40° C at 95% relative humidity
(non-condensing).

The amplifi er shall include Digital Signal Processing with these functions:
EQ: 4-band paragraphic per channel, boost/cut +/- 12 dB. Also adjustable
high and low shelving fi lters. Filters: Highpass and lowpass per channel.
Butterworth 6/12/18/24 dB per octave. High and low shelving fi lters, one
per channel. Delay: For signal alignment of driver; 5 mS total delay Subhar­monic Synthesizer: Adds low-frequency content. Output Limiter: Prevents
clipping. Presets: 10 user speaker presets.

The amplifi er shall be safe when driving any kind of load—even highly
reactive ones.

AC line voltage and frequency confi gurations available shall be 100V, 120V,
220-240V, 50/60 Hz.

The amplifi er shall have a rugged steel chassis coated with environmentally
friendly powder. The amplifi er shall be fan-cooled.

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 12.25 inches (31.11 cm) deep behind mounting surface.

The amplifi er shall weigh 18.5 pounds (8.4 kg).

The amplifi er shall be designated the Crown XTi 4000.

The rear panel shall have the following connectors:
AC Line Connector: NEMA 5-15P (15A). Input Connector: XLR, one per
channel. Link/Out Connector: Loop-thru signal from input connector for
linking to another amplifi er, one per channel. Output Connectors: Two

®

Neutrik

Speakon® NL4MP (mates with NL4FC) output connectors. Chan-

®

nel-1 Speakon
optional single 4-conductor cable. Two binding post outputs (in parallel
with Speakon
HiQnet network.

The power amplifi er shall meet or exceed the following power criteria at 1
kHz: 2 ohm Stereo (per channel): 1,600W with 1%THD, 4 ohm Stereo (per
channel): 1,200W with 0.5% THD, 8 ohm Stereo (per channel): 650W with

0.5% THD, 4 ohm Bridge-Mono: 3,200W with 1% THD, 8 ohm Bridge­Mono: 2,400W with 0.5% THD.

The amplifi er shall meet or exceed the following performance criteria:
Voltage Gain at 1kHz, 8 ohm rated output: 34.2 dB. Frequency Response:
+0/–1 dB from 20 Hz to 20 kHz at 1 watt into 4 ohms. Load Impedance:
Safe with all types of loads. Rated for 2-8 ohms in Stereo mode, 4-16
ohms in Bridge-Mono mode. Sensitivity: 1.4V. Signal to Noise Ratio (below
rated 1 kHz power at 8 ohms): 100 dB (A weighted). Damping Factor:
Better than 500 from 20 Hz to 400 Hz. Crosstalk: > 70 dB below rated

shall be wired with Ch. 1 and Ch. 2 outputs for use with

®

connectors). HiQnet USB Connector: Type B, connects to a

Crown International
1718 W. Mishawaka Rd.
Elkhart, IN 46517-9439
TEL: [phone]
FAX: [phone]FAX
www.crownaudio.com

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, Inc. Printed in U.S.A.
© 2006 Crown Audio

9/06 139475-1B

®

, Inc.