Hi There...
PH5000W/D1 inside1 :
well , all topology are Full bridge...
so...SPL drag With Ph5000w/d1(about 2000w) & one Kicker 06S15L74(6th order bandpass enclosure) :
this amp have subsonic filter about 20hz/ -18db per octave...
so...
PH2200W/4 insides :
input stage :
input...