DISC Crown XS900 Power Amp

Full Description

Features

Housed in a rugged, all-steel 2U chassis.

Efficient forced-air fan prevents excessive thermal buildup.

XLR-1/4" combo inputs, 3-pin Phoenix-style inputs, daisy-chain XLR outputs, touch-proof binding post outputs and Speakon 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 specifications.

Performance

Power Output:

600W per channel @ 8 Ohms

900W per channel @ 4 Ohms

1200W per channel @ 2 Ohms

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):

Xs900 (1 kHz, 20 kHz): > 67 dB, > 62 dB

Voltage Gain (at maximum level setting):

Xs900: 42:1 (32.5 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.

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 channels input signal level is above 40 dBu.

Clip: Two or four front-panel red LEDs, one for each channel, illuminates when the channels 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.