The only reason I'm giving this less then a 10 is because I have nothing to compare it to but the older Alpine that came with my vehicle. People complain about heat or other various things. I have this in a regular cab pickup...a 1978 Dodge truck with a bench seat. I have the amp configured 2 ohm stable with two Kicker 3 way 6x9 door speakers and bridged to 2 10 inch Rockford Fosgate subs that came with the vehicle in a sealed box. Everything is loud and crisp. I blast it for at least 2-3 hours non stop with no issues as I'm testing the vehicles cooling system and electrical system with new things I've installed since i just purchased the vehicle. It's a great value for the price that's for sure!