Sometimes, big things come in small packages. That is the case with the Rockford Fosgate Punch PBR300X2 car amp. This compact, two-channel, car amplifier has the power to send 100 watts RMS to each of the two speakers, or to go all the way to 300 watts RMS in one-channel mode. It is able to generate all of this power thanks to the Boosted Rail amp technology. It also has a Dynamic Thermal Management cooling system so you don't have to worry about overheating, even if you're playing at max power. If you want to feel that bass when you're riding down the road, this system is a great choice.