An upgraded car audio sound system isn’t possible without buying a highly rated amplifier. We remember when we first spent a few bucks to increase our music listening experience and we haven’t gone back since. Unless you’re buying some type of luxury car that has a built-in higher-end system (even then, we’d at least add a few extra watts or tweeters if you can). If you’re just starting out your question to build the best car audio sound system, one of the first steps is grabbing your amp. So which car amplifier is the best? That depends on a few factors, which we list below. We then compiled a list of the top 10 best car amplifiers for the money to help your shopping endeavors.