so i was standing beside a friend of mine when he bought this amp years ago, ran it on 3 kicker comp vr subs and it worked great for about a year before it stopped working, he had it "fixed" and it quit again. i can get this amp for free is it a good amp? has anyone else had good luck with one? i don't mind paying to have it fixed if it's worth it. but if it's junk it can stay in his pile of broken junk.