Tip:This subwoofer amplifier board is a real pure bass amplifier with only strong bass output.

Features:
(1)Input voltage 220V.
(2)Watts:4 ohms/200w,8 ohms/100w
(3)With automatic standby function
(4)Panel material: aluminum alloy
(5)Frequency range: 30-150HZ
(6)Power supply: switching power supply
(7)Amplifier Amplification Mode: Analog
(8)Power tube: 5198/1941

Size:(As picture show)
External dimensions: 200 mm * 145 mm * 53 mm thick
Opening size: 177mm*125mm*55mm