未核实，仅供参考BWS-4520
Features:
4-channel dynamic amplifie
MOSFET PWM power supply
Bridgeable & tri-mode operation
Power soft start
Mute circuit for power on/off (built-in)
Overload, thermal, short circuit protection
Specifications:
1) RMS power output:
a) @ 4 ohms: 50W x 4
b) @ 2 ohms: 75W x 4
c) @ Bridge at 4 ohms: 150W x 2
2) Signal to noise ratio: 90dB
3) Frequency response: 20Hz to 20kHz
4) Total harmonic distortion: 0.05%
5)Input voltage range:DC 11-15v
6)Input sensitivity：200mV-4V
7)Dimensions(L×W×H): 394×283×103mm
