This is a used / pre-loved item, we do our best to uphold the quality of all our used equipment.
Martin Audio MA18K Lightweight, High Power, High Performance Power AmplifierThe MA18K is one of three models extending the range of the renowned MA Series power amplifiers. The MA18K utilises the Pulse Width Modulation principal in combination with a high efficiency two stage switching power supply to deliver true class D operation with unparalled sonic performance and hitherto unobtainable power delivery.
The MA18K operates at an astonishing 95% efficiency virtually regardless of output power, occupies only 1U of rack space and is a mere 12kg (26.5lbs) in weight.
Features :
Worldwide mains operating voltage
Power Factor Correction
Over-temperature forecasting
Thermal, short-circuit and overload protection
Temperature controlled air cooling system
Clip and permanent signal limiter
Digital gain attenuation
User selectable maximum output power
User selectable maximum mains current draw
PC remote control, monitoring and diagnostics
Specifications :
Max output power (EIA at 1KHz and 1% THD) :
8Ω per channel : 2700W
4Ω per channel : 5200W
2Ω per channel : 9000W
16Ω bridged : 5400W
8Ω bridged : 10400W
4Ω bridged : 18000W
Distortion :
THD from 0.1W to full power : < 0.05% (typically)
Intermodulation SMPTE : < 0.05% (typically)
Intermodulation DIM 30 : < 0.05% (typically)
S/N ratio : >110dBA (20Hz to 20KHz)
Damping factor (8 ohm) : > 5000 (20Hz to 20KHz)
Output impedance : 60mΩ (User Selectable with KDSP option)
Slew rate : 50V/µs
Inputs :
Gain selectable (dB) : 26, 29, 32, 35
Impedance : 10KΩ
Rear panel :
Input connectors :
Neutrik XLR / 6.3mm (0.25ins)
Jack Combo
Output connectors :
Neutrik Speakon
Link switch : Channel A-B Link
Data ports : RS485 Via RJ45