solo baric

So my two kenwood 4ohm kfc-xw120 12s just gave up the ghost and I am trying to decide whether to use two KICKER - CompR 12" Dual-Voice-Coil 2-Ohm Subwoofer in my old bassworx ported box or spend a little more and get a KICKER - Solo-Baric L7S 12" 2-Ohm ported Loaded Subwoofer Enclosure. I’m...

I am pretty sure the way I want to hook my system up is Bridging the amp and then running my voice coils in series like option 2 of this link. http://www.the12volt.com/caraudio/woofer_configurations.asp?Q=2&I=42#results When I bridge the amp do I need to put jumpers or anything or just run...

I'm new to car audio and needed help on wiring up my system. I have 2 of the 8" L7 Solobarics and an 850/2 Kicker Amp. I have been told I should wire it up 4 ohm instead of 2 ohm, is this correct? How would I go about this? and To secure my subs into the box is there any specific screw I should...