Number of main channel groups: 4 groups (CH1～CH4)

Alternate channels: 1 groups

Channel switching capability: 150V/20A, audio signal

Signal input parameters: 0.775V(0dB)，10kohms(Ω), imbalance

Input detection threshold: 50mV, detection time constant 20mS

Output detection threshold: 100mV, detection time constant 20mS

Roving inspection cycle: 500mS tour eight times

Control mode: manual / automatic

Power supply: AC220V～240V/50～60Hz

Power consumption: 10 ~ 15W

Protection: Ac　FUSE(0.5A)×2

Machine size: 485×390×90mm

Net weight: 7.5Kg

Function introduction:

1, with 4 main power amplifier, 1 sets of power amplifier, fault detection, automatic switching.

2, 4 groups of power signal output, connect the loudspeaker.

3, automatically detect audio power amplifier failure, and automatically switch between the main power amplifier and standby power amplifier.

4, 2U standard chassis design, aluminum alloy panel, beautiful and practical.