皇冠专业功放　CROWN　XTi4000

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产品介绍

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.

Minimum Guaranteed Power, 1 kHz	XTi 4000
Per channel, both channels driven
Stereo, 2 ohms (per ch.) Stereo, 4 ohms (per ch.) Stereo, 8 ohms (per ch.) Bridge-Mono, 4 ohms Bridge-Mono, 8 ohms	1600W** 1200W* 650W* 3200W** 2400W*
With 0.5% THD. *With 1% THD.

■ 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; weight sets a new standard    in lightweight amps (20% less)
■ Speakon® and binding post outputs, XLR inputs and loop-thrus
■ Comprehensive LED status per channel
■ Three-Year, No-Fault, Fully Transferable Warranty completely protects your investment    and guarantees its specifications

Specifications

Sensitivity (volts RMS) for full rated power at 4 ohms	1.4V
Frequency Response (at 1 watt into 4 ohms, 20Hz - 20 kHz)	+0/–1 dB
Signal to Noise Ratio (below rated 1 kHz power at 8 ohms), A-weighted	100 dB
Damping Factor (8 ohm): 20 Hz to 400 Hz	> 500
Input Stage	Input is electronically balanced and employs precision 1% resistors.
AC Line Current	XTi 1000: 6.5A, XTi 2000: 6.9A, XTi 4000: 8.0A. At idle: Draws no more than 90 watts.
Crosstalk (below rated power) 20 Hz to 1 kHz	> 70 dB
Input Impedance (nominal)	20 kilohms balanced, 10 kilohms unbalanced
Load impedance (note: safe with all types of loads) Stereo Bridge mono	2-8 ohms 4-16 ohms
Voltage Gain (at 1 kHz, 8 ohm rated output)	XTi 1000: 30.5 dB. XTi 2000: 32.9 dB. XTi 4000: 34.2 dB
Maximum Input Signal	+22 dBu typical
Operating Temperature	0° C to 40° C at 95% relative humidity (non-condensing)
AC Line Voltage and Frequency Configurations Available (± 10%)	100V, 120V, 220-240V 50/60 Hz
Ventilation	Flow-through ventilation from front to back
Cooling	Heat sinks and proportional-speed fan
Dimensions: Width, Height, Depth (behind mounting surface)	EIA Standard 19 in. W (EIA RS-310-B) x 3.5 in. (8.9 cm) H x12.25 in. (31.1cm) D
Net Weight, Shipping Weight	18.5 lb (8.4 kg), 21.5 lb (9.8 kg)