Power Acoustik RZ4-1200D Class D 4 Channel Car Motorcycle Digital Amplifier

Power Acoustik Class D 4-Channel Car Motorcycle Amplifier. 3-way protection circuitry (thermal, overload, and speaker short protection). Mono channel operation. 4 ohms: 100 watts x 4 channel. 2 ohms: 150 watts x 4 channel.

eBay