amp power

does anyone know aything about setting Inifinity amps, my first Sub blow out with the power truned out on it if anyone knows anything could they let me know its the 611d amp going to an Inifinity perfect 12d vqmatt

i don't claim to be a car audio expert, but infinity amps are very unimpressive. i had the 610 class d amp powering 2 perfect 10.1svc's and it was disappointing. i was told that they put out "dirty power" and to get a different amp.    i went with the kicker kx600.1 mono class d amp and am very happy with it. i've been told that infinity kappa/kappa perfects are very good speakers but their amps are unsatisfactory. 2004 hondaaccord sedan alpinecda9827HU, 2kicker sx650.1monoamps, alpinemrv-f540 4ch, 2 kappaperfect 10.1svc subs(350rms ea.), kappa 6.1 components(front), kappa 693.5i 6x9's(rear).