ok, the problem is this: i have a PPI amp that is 75W per channel, and is bridgeable for 300W at 4 ohms. my sub is an eDK12 double 4 ohm coils, so how can i get the most out of my amp? if i wire both bobins in series, i´ll get 8 ohms, and in parallel 2 ohms. how do i feed 4 ohms to my bridged amp?