CROWN XS900 Details
The Xs Series of power amplifiers from Crown represents a new era in affordable, quality power amplification. The line consists of four models in a uniform, rugged 2U chassis, incorporating the best of tried-and-true design principles and innovative features.
The four 2-channel models in the series are the Xs500,
Xs700, Xs1200, and Xs900. They are identical except for output power. The Xs4300 is a 4-channel model.
FEATURES
• Housed in a rugged, all-steel 2U chassis.
• Efficient forced-air fan prevents excessive thermal buildup.
• 2-channel models have XLR-1/4" combo inputs, 3-pin Phoenix-style inputs, daisy-chain XLR outputs, touch-proof binding post outputs and Speakon® outputs. Xs4300 has XLR-1/4" combo inputs and touch-proof binding post outputs.
• Precision detented level controls, power switch, and five LEDs which indicate clip for each channel, power, AC mains, temperature and fault conditions.
• Microprocessor-controlled protection system.
• Three-Year, No-Fault, Fully Transferable Warranty completely protects your investment and guarantees its specification.
Specifications
The following applies to units in Stereo mode with 8-ohm loads and rated input sensitivity unless otherwise specified.
Performance
Power Output: See power charts above.
Sensitivity (volts RMS) for full rated power at 4 ohms: 1.4V
Frequency Response (at 1 watt): 22 Hz to 22 kHz: ±1 dB.
Phase Response (degrees at 1 watt, 20 Hz to 20 kHz): +5°, –18°
Signal-to-Noise Ratio:
A-weighted, below rated power: > 102 dB.
22Hz to 22kHz, below rated power: > 97 dB.
Total Harmonic Distortion (THD) at full bandwidth power, from 20 Hz to 20 kHz: 0.5%.
Intermodulation Distortion (IMD):
(60 Hz and 7 kHz at 4:1) from full rated output to –40 dB: < 1%.
Damping Factor (8 ohm) 10 Hz to 400 Hz:
> 200.
Crosstalk (below rated power):
Xs500 (1 kHz, 20 kHz): > 55 dB, > 55 dB
Xs700 (1 kHz, 20 kHz): > 55 dB, > 55 dB
Xs900 (1 kHz, 20 kHz): > 67 dB, > 62 dB
Xs1200 (1 kHz, 20 kHz): >65 dB, >45 dB
Xs4300 (1 kHz, 20 kHz): > 57 dB, > 40 dB
Voltage Gain (at maximum level setting):
Xs500: 32:1 (30.1 dB)
Xs700: 38:1 (31.6 dB)
Xs900: 42:1 (32.5 dB)
Xs1200: 47.4:1 (33.5 dB)
Xs4300: 25:1 (27.8 dB)
Load Impedance: Safe with all types of loads.
Xs500, 700, 900, 1200: 2 to 8 ohms in Stereo, 4 to 8 ohms in Bridge Mono.
Xs4300: 4 to 8 ohms in Stereo, 8 ohms in Bridge Mono.
AC Line Voltage and Frequency Configurations Available (±10%): 120VAC/60 Hz and 230VAC/50 Hz.
Controls
Level: Two or four front-panel, gray rotary level controls, one for each channel.
Power: Front-panel switch; on when in the right-hand position.
Indicators
Signal: Two or four green LEDs, one for each channel, illuminates when the channel’s input signal level is above –40 dBu.
Clip: Two or four front-panel red LEDs, one for each channel, illuminates when the channel’s output signal is being overdriven.
Power: Yellow front-panel LED indicates amplifier has been turned on and AC power is available.
AC Mains: Red front-panel LED indicates the presence of AC power at the power cord, even if the amplifier is not turned on.
Fault: Red front-panel LED illuminates when amplifier is in protect mode. Also illuminates briefly during normal power-up when amplifier is first switched on.
Bridge: Yellow LED indicates that amplifier is in bridge mode (Channels 1 and 2, Channels 3 and 4 in Xs 4300).
Temp: Red LED indicates that channel(s) are in thermal protect mode.
Input/Output
Input Connectors:
XLR-1/4" combo connectors: One per channel, 3-pin female XLR connector and TRS 1/4" phone jack accept balanced or unbalanced signals.
3-pin Phoenix-style connectors (2-channel models only): One per channel, accepts balanced or unbalanced signals.
Input Impedance (nominal) balanced, unbalanced: 20 k ohms, 10 k ohms.
Output Connectors:
Balanced XLR connectors (2-channel models only): One per channel, 3-pin male XLR connector in parallel with XLR-1/4" combo and Phoenix-style input connectors for daisy-chain operation.
5-Way binding post output connectors: One pair per channel; accept banana plugs, spade lugs or bare wire. Note: Binding post outputs on European models come with safety plugs installed to prevent European power-cord plugs from being inserted. The top & bottom entry positions for these connectors should therefore be used with European models.
4-Pole Speakon® output connector (2-channel models only): One connector per channel. Accepts a 4-pole Speakon connector.
DC Output Offset (shorted input): ±75 millivolts.
Output Signal: Stereo, unbalanced, two-channel or four-channel (Xs4300 only)
Protection
Xs Series amplifiers provide extensive protection and diagnostic capabilities, including output current limiting, microprocessor-controlled DC protection, circuit breaker, and special thermal protection for the unit’s transformers.
Construction
Ventilation: Flow-through ventilation from front to back.
Cooling: Internal heat sinks with forced-air cooling for rapid, uniform heat dissipation.
Air Volume Requirements (per minute per unit): 80.15 ft³ (2.27 m³).
Dimensions: EIA Standard 19-inch (48.3-cm) rack mount width (EIA RS-310-B), 3.5-inch (8.9-cm) height and 15.5-inch (39.4-cm) depth behind the mounting surface.
Weight
Net Weight: 28 lb (12.7 kg)
Shipping Weight: 34 lb (15.4 kg)
CROWN XS900 XS SERIES AMP
