Features:
● Higher class amplifier with Onsenmei transistor made in USA
● Aluminum alloy front panel with brushed finish and detachable ventilated heat sink panel
● Each channel has a logic power supply that can control and adjust power output stage dynamically in real time
● Versatile protections such as output short-cut, DC output, overload, overheat, mismatching the load, high frequency overload and input over-current protections; radio frequency interference filter,…
● Highly efficient wind tunnel heat sink design, minimized wind noise
● Pre-signal process with power supply directly from the motherboard that makes the voltage clean, stable and sufficient
● Using differential input mode, amplifier reacts faster
● Featuring class A sound quality, class H high efficiency, high power and low heat consumption
● Soft starting prevents surge shock
● Turn on delaying and turn off soundless
Specifications:
Model | PR855 | PR859 | PR861 | |
Power output (W) 1KHz,0.5%THD+N |
Stereo 8Ω | 500W | 900W | 1100W |
Stereo 4Ω | 750W | 1450W | 1700W | |
Bridged Mono 8Ω | 1500W | 2800W | 3200W | |
Frequency response(1W@8Ω) | 20Hz-20kHz +0.5/-0.1dB | |||
THD+N(Continuous power, 8Ω/1kHz) | ≤0.03% | |||
S/N rate (20Hz-20kHz full load) | ≥96dB | |||
Slew rate | 45V/us | |||
Damping factor | ≥280:1 | ≥450:1 | ≥450:1 | |
Cross talk | ≥60dB | |||
Input impedance | 20KΩ(Balance) /10KΩ(Unbalance) | |||
Input sensitivity | 1.0V/1.4V | |||
CMRR | ≥60dB | ≥60dB | ≥55dB | |
Voltage gain(@1.44V/1V/0.775V) | 44.7X/63.1X | 60X/84.8X | 67X93.8X | |
Input compression ratio | 20:1 | |||
Dimension(WxDxH) | 483(19")mmx490mmx89(2U)mm | |||
Weight | 20.5kg | 26.0kg | 27.5kg |