you all need to grow up,i've been into this stuff every since i was 15-16, i'm 36 now (old man ) Old school amps blew up just like today's amps do, the difference is you're just out more money with the old school amps, those amps back in my day cost an arm and leg, punch 150 was like $550, Technology is a bitsh, look at the car shows of today , It's like underrated amps, to me that don't mean nothing, a watt is a watt no matter how much u pay for it ( 220 per watt or 60 per watt) they did that just to justify the high ass price. 15 yrs ago it took 12-24 15" woofers to do what 2 subs can to today. don't get me wrong i love the old school amps, heard alot of them, had alot of them, back then, we didn't have the choices you have now and of course class D. i have a ppi art series ap1200 and the 404, ( now you know how much that cost back then,) and i also have an soundstream picaso class a (the chrome one) punch 45 and a 100 dms all blown, so it's all n the eye of the beholder. thats why i shake my head every time is see oldschool and newschool, i love all school