One of the keys to a good sounding, loud and clean car stereo system is your amplifier. You could have the best car stereo speakers in the world but all of that means nothing unless you have some power behind it. Ok so here are some basics, 4 channel for your mids and highs(i.e. front and back speakers) and either a mono or a 2 channel for your subwoofers.(oh yeah or a 5 channel to run the whole system.) Browse through our selection of amps made by Alpine, Memphis, Mmats and Rockford but be sure to give us a call if you have any questions.