Crown XTI 4000 Power Amplifier Features:

• Integrated proprietary DSP with LCD front panel display
  
  
• Accurate, uncolored sound with very low distortion for the best in music and voice reproduction
  
  
• Advanced protection circuitry guards against: shorted outputs, open circuits, DC, mismatched loads, general overheating, high-frequency overloads and internal faults
  
  
• Extremely versatile, handling a wide range of speaker impedances 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 17 pounds
  
  
• Speakon® and binding post outputs, XLR inputs and loop-thrus
  
  
• Comprehensive LED status per channel
  
  
• 3-year, no-fault, fully-transferable warranty
  
  

Crown XTI 4000 Power Amplifier Specifications:

• Voltage Gain at 1kHz, 8 ohm rated output:
  
  
  
• XTi 1000: 30.5dB _XTi 2000: 32.9dB_XTi 4000: 34.2dB
  
  
• Frequency Response: ±0.25 dB from 20 Hz to 20 kHz at 1 watt into 4 ohms
  
  
• Phase Response (at 1 watt, 20 Hz to 20 kHz): ±15°
  
  
• Load Impedance: Safe with all types of loads. Rated for 2 to 8 ohms in Stereo mode, 4 to 16 ohms in Bridge-Mono mode
  
  
• Sensitivity: 1.4V
  
  
• Signal to Noise Ratio (below rated 1 kHz power at 8 ohms): _105 dB (A weighted).
  
  
• Damping Factor: Better than 500 from 20 Hz to 500 Hz.
  
  
• Crosstalk: > 80 dB below rated power, 20 Hz to 1 kHz.
  
  
• Common Mode Rejection (CMR): > 45 dB from 20 Hz to 1 kHz._Input Stage: Input is electronically balanced and employs precision 1% resistors.
  
  
• Input Impedance (nominal): 20 k ohms, balanced;10 k ohms, unbalanced.
  
  
• Maximum Input Signal: +22 dBu typical
  
  
• AC Line Voltage and Frequency Configurations Available: 100V, 120V, 220-240V _50/60 Hz
  
  
• AC Line Current:
  
  
• XTi 1000: 6.5A_XTi 2000: 6.9A_XTi 4000: 8.0A
  
  
• At Idle: Draws no more than 90 watts.
  
  
• Operating Temperature: 0° C to 40° C at 95% relative humidity (non-condensing).
  
  

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 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
  
  
• Front Panel Controls and Indicators
  
  
• Level: Detented rotary level control, one per channel
  
  Power Switch: On/off switch applies AC power to the amplifier
  
  Sel/Prev/Next Buttons: Three buttons near the LCD screen are used to access menu items
  
  
• LCD Screen: Backlit liquid crystal display shows speaker presets
  
  
• Signal Indicator: Green LED, one per channel, flashes when a very low-level signal is present at input
  • 10 Indicator: Green LED flashes when output signal exceeds —10 dB below clip.
  • 20 Indicator: Green LED flashes when output signal level 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 at the 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 turned on 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 for linking