Sony XM-GS4 4-channel car amplifier - 70 watts RMS x 4
Plays your music loud and clear: This Sony amp uses a heavy-duty transformer and premium capacitors to maximize sonic accuracy. Sony's XM-GS4 4-channel amplifier will drive your whole system, sending 70 watts RMS to each of your front and rear speakers. Or you can switch the amp into 2-channel mode to power a couple of subs with 160 watts RMS each. This compact amp sports a hefty heatsink that gets rid of the heat that's generated when you're pushing your system hard.