| Performance
Power (1 kHz*):
8 ohms: 500W
4 ohms: 800W
2 ohms: 1050W
8 ohms bridged to mono: 1600W
4 ohms bridged to mono: 2100W
*1 kHz Power: refers to maximum average power in watts at 1 kHz with 0.5% THD.
Sensitivity (volts RMS) for full rated power at 4 ohms: 1.25 V
Frequency Response (at 1 watt) 22 Hz to 20 kHz: +0 dB, +0.8 dB
Signal-to-Noise Ratio (20 Hz to 20 kHz)
A-weighted, below rated power: >98 dB
No weighting, below rated power: >93 dB
Total Harmonic Distortion (THD): <0.5%
Intermodulation Distortion (IMD): (60 Hz and 7 kHz at 4:1) from full rated output to +40 dB: < 0.3%
Damping Factor (8 ohm) 10 Hz to 400 Hz: >200
Crosstalk (below rated power) at 1 kHz: +76 dB. at 20 kHz: +58 dB
Input Impedance (nominal): 20 kilohms balanced, 10 kilohms unbalanced
Load Impedance: Rated for 2 to 8 ohms per channel in Stereo, 4 to 8 ohms in Bridge Mono
AC Line Voltage and Frequency Configurations Available (+/-10%): 120 VAC 60 Hz, 100 VAC 50/60 Hz, 220 VAC 50 Hz, and 230-240 VAC
Controls
Level: 2 front-panel rotary level controls, 1 for each channel
Power: Front-panel switch; on when in the IN position
Circuit Breaker: Back-panel breaker provides overload protection
Mode Switch: Back-panel switch selects Dual or Bridge-Mono mode
Indicators
Signal Presence Indicators: 2 green LEDs, one for each channel, illuminate when the channel's input signal exceeds +40 dBu
Clip Indicators: 2 red LEDs, 1 for each channel, illuminate when the channel's output is being overdriven
Power Indicator: Blue LED indicates amplifier has been turned on and AC power is available
Fault Indicator: 2 red LEDs illuminate when amplifier is in protect mode. Also illuminates briefly during normal power-up when amplifier is first switched on
Input/Output
Input Connectors: 1 per channel; back-panel 3-pin female XLR input connectors
Output Connectors: Two 4-Pole Speakon Output Connectors accept 2-pole or 4-pole Speakon connectors. The top Speakon connector is wired for both channels so it can be used for bridge-mono wiring or for stereo wiring of two speakers to a single Speakon connector. One pair of back-panel binding posts per channel; accepts banana plugs or bare wire. (European models do not accept banana plugs.)
Protection
XLS Series amplifiers provide extensive protection and diagnostic capabilities, including output current limiting, DC protection, circuit breaker, and thermal protection.
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 cubic ft.
Dimensions: EIA Standard 19 in. (48.3-cm) rack mount width (EIA RS-310-B), 3.5-inch (8.9-cm) height and 15.2 in. (38.6-cm) depth
Net Weight: 35.5 lb (16.1 kg)
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