QS400.4 2 Ohm Mini Amplificatore Audio Auto Compatto 4 Canali 4 X 100 Watt RMS a 2

2 Channel Bridged - double the power output to your speakers by bridging two channels. Minimum impedance of 4 Ohms per bridged channel at output power of 2 x 200 Watts RMS. 4 Channel car audio amplifier stable at 2 Ohm gives you the benefit of wiring multiple speakers and dividing the power per channel.

eBay