nope ..dats not true.. a window breaking or crracking wid 500rms, neva seen dat.. and there ARE amps which can produce massive amount of power..
@stylzz.. JBL amps 6000rms.. i dun remeber the actual model but i guess it was like 6000gt
RockfordFOsgate..
T1000.1bd=1300-1500 rms
T2000.1bd=2500rms approx.
T3000.1bd=3500-4000rms
T4000.1bd=4700-5500rms
T15K=16000 - 26000 rms
and there are many brand amps which can go more then u stated like Sundown, Kicker, DD, Stretsom, Soundstream and many more..
Breaking a car windshiel is no joke really.. most of the people doing Bassraces cant do it or it would be right to say that there are only a few guyz who can do it .. neways