Specifications:
Output power: 310W RMS @ 8Ω
                     500W RMS @ 4Ω
(Bridge-Mono) 900W RMS @ 8Ω
THD: <0.005% at 1kHz
        <0.05% 20Hz-20kHz @ 0.1W
Intermodulation Distortion: <0.01% 0.1W
Crosstalk: <-75dB, 1kHz ref 300W/8Ω
                <-65dB, 20Hz-20kHz
Noise: <-105dBA
Slew Rate: >75V per microsecond
Damping factor: >400, 50Hz, 8Ω
Frequency response: 20Hz-20kHz ±0.25dB
Input sensitivity: 1V for 300W @ 4Ω
Input impedance: 20kΩ
Input gain: 34dB
Physical: 19" standard rack mount x 1u
Depth: rack to rear mountings: 420mm
Weight: 10kg (22.5lbs)
Mains power: 110/120/220/240V

Key Features:

• Audio integrity: Ultra linear, non-switching electronic architecture guarantees true audio transparency. Developed from leading powered studio monitors.
• Protection against short circuited outputs, heatsink thermal sensors, internal temperature protection, power supply monitoring.
• Thermostatic fan: runs at variable speed, set by thermal sensors
• Aluminium extrusion construction for strength, weight and thermal efficiency

Free service information: 1,  2,  3,  4,  5,  6,  7,  8,  9

and Full Circuit Diagram and Parts list