DVC Sub Wiring..i think i got it wrong?

Originally posted by Accord17
Ok, ya know how with Dual Voice Coil subs (DVC) you have 2 negative posts and 2 postive posts on EACH sub. Well the first diagram is how i connected my subs, wiring and stuff. But i just browsed on alpines website (my subs are Type R 12" DVCs) and it showed me a completely different way to wire them. Look below..

It really depends all on the impedance of the Voice coils.