There's likewise the indoor size of your lorry to think about. You may wish to take into consideration a 5-channel amplifier that can power your whole system from one portable as well as practical plan. It's 4 channels for your speakers, plus a 5th, higher-powered network for your subwoofer. 6- and also 8-channel amps take that all-in-one design as well as add even more system-building flexibility.