How many amps does a 2000 watt amp need?
What is a 4 channel amp good for?
A 4-channel amplifier can power front left and right speakers plus rear left and right speakers in a basic car stereo system. In more complicated active setups, a 4-channel amp could be used to power front left and right tweeters and woofers.
Does a 4 channel amp make a difference?
If you’re looking simply for more power for your front and rear speakers, a 4-channel amplifier is the way to go. They basically come in four sizes: 40 to 50 watts per channel compact power packs that conveniently connect to factory wiring and can often fit behind the dash for a stealthy installation.