Crown XTI-4000

The XTI Series of Crown amplifiers are professional tools designed and built for portable PA applications. The series includes three models which are identical except for output power: XTI 1000, 2000 and 4000. All are rugged and lightweight, and offer unmatched value in their class.

XTI-Series amplifiers feature an LCD screen with DSP speaker presets for crossover frequencies, EQ, limiting, delay, and a subharmonic synthesizer. Other features include a switch-mode universal power supply, useful function indicators, proportional-speed fan assisted cooling, XLR inputs, Speakon® and binding-post outputs, short-circuit protection and more.

With their powerful, reliable performance, XTI-Series amps easily handle 2-ohm loads and are capable of chest-thumping lows. Plus, your investment in an XTI-Series amplifier is backed by Crown’s Three-Year, No-Fault, Fully Transferable Warranty.

Features

• Integrated proprietary DSP with LCD front paneldisplay
• Accurate, uncolored sound with very low distortionfor the best in music and voice reproduction
• Advanced protection circuitry guards against: shortedoutputs, open circuits, DC, mismatched loads, general overheating,high-frequency overloads and internal faults
• Extremely versatile, handling a wide range of speakerimpedances and outputs
• Switch-mode universal power supply
• Speaker presets for crossover frequencies, EQ,limiting, and delay
• All products fill 2U rack spaces and weigh under 17pounds; weight sets a new standard in lightweight amps (20% less)
• Speakon® and binding post outputs, XLR inputs andloop-thrus
• Comprehensive LED status per channel
• Three-Year, No-Fault, Fully Transferable Warranty completely protects yourinvestment and guarantees its specifications

Power Output (1kHz, 1% THD)

• 8 ohm, Stereo: 650W
• 4 ohm, Stereo: 1200W
• 2 ohm, Stereo: 1600W
• 8 ohm, Bridge-Mono: 2400W
• 4 ohm, Bridge-Mono: 3200W

Specifications

• Voltage Gain at 1kHz, 8 ohm rated output: 34.2 dB
• Frequency Response: +/-0.25 dB from 20 Hz to 20 kHzat 1 watt into 4 ohms
• Phase Response (at 1 watt, 20Hz to 20kHz): +/-15degrees
• Load Impedance: Safe with all types of loads. Ratedfor 2 to 8 ohms in Stereo mode, 4 to 16 ohms in Bridge-Mono mode
• Sensitivity: 1.4V
• Signal to Noise Ratio (below rated 1kHz power at 8ohms): 105dB (A weighted)
• Damping Factor: Better than 500 from 20Hz to 500Hz
• Crosstalk: >80dB below rated power, 20Hz to 1kHz
• Common Mode Rejection (CMR): >45dB from 20Hz to1kHz. Input Stage: Input is electronically balanced and employs precision 1%resistors
• Input Impedance (nominal): 20k ohms, balanced; 10 kohms, unbalanced
• Maximium Input Signal: +22 dBu typical
• AC Line Voltage and Frequency ConfigurationsAvailable: 100V, 120V, 220-240V 50/60Hz
• AC Line Current: 8.0A
• At Idle: Draws no more than 90 watts

DSP Section

• EQ: 4-band paragraphic per channel, boost/cut ±12 dB.Also adjustable high and low shelving filters
• Filters: Highpass and lowpass per channel.Butterworth 6/12/18/24 dB per octave. High and low shelving filters, one perchannel
• Delay: For signal alignment of driver; 5 mS totaldelay
• Subharmonic Synthesizer: Adds low-frequency content
• Output Limiter: Prevents clipping
• Presets: 10 user speaker presets

Front Panel Controls and Indicators

• Level: Detented rotary level control, one per channel
• Power Switch: On/off switch applies AC power to theamplifier
• Sel/Prev/Next Buttons: Three buttons near the LCDscreen are used to access menu items
• LCD Screen: Backlit liquid crystal display showsspeaker presets
• Signal Indicator: Green LED, one per channel, flasheswhen a very low-level signal is present at input. May be used fortroubleshooting cable runs
• –10 Indicator: Green LED flashes when output signalexceeds –10 dB below clip
• –20 Indicator: Green LED flashes when output signallevel exceeds –20 dB below clip
• Ready Indicator: Green LED, one per channel,illuminates when the amplifier is ready to produce audio
• Clip Indicator: Red LED, one per channel, turns on atthe threshold of audible distortion
• Temp/Fault Indicator: Red LED, one per channel,illuminates under Fault or excessive temperature conditions
• Power Indicator: Blue LED illuminates when the amplifier has been turnedon and has power

Rear Panel Controls and Connectors

• AC Line Connector: NEMA 5-15P (15A)
• Input Connector: XLR, one per channel
• Link/Out Connector: Loop-thru signal from input connector forlinking to another amplifier, one per channel
• Output Connectors: Two Neutrik® Speakon® NL4MP (mates withNL4FC) output connectors. Channel-1 Speakon® is wired with Ch. 1 and Ch. 2outputs for use with optional single 4-conductor cable. Two binding postoutputs (in parallel with Speakon® connectors)
• HiQnet USB Connector: Type B, connects to a HiQnetnetwork

Protection

• XTi-Series amplifiers are protected against shorted, open or mismatchedloads; overloaded power supplies; excessive temperature; chain destructionphenomena; excessive output current, input overload damage; and high-frequencyblowups. They also protect loudspeakers from input/output DC, large ordangerous DC offsets and turn-on/turn-off transients.

Construction

• Chassis: Steel.
• Cooling: Proportional speed fan with front-to-rearairflow.
• Dimensions: EIA Standard 19-in. rack mount width (EIARS-310-B), 3.5 in. (8.9 cm) high and 12.25 in. (31.11 cm) deep behind mountingsurface.
• Net Weight: 17 lb (7.7 kg)
• Shipping Weight: 21 lb (9.5 kg)

TMGR# XTI4000