Originally Posted by chpthril
Dual 2 ohm wired in series to = 4 ohm and run bridged on chnls 5 and 6 will net you 600W rms
Chpthril describes it properly, (almost)... Get the dual 2-ohm...
Know that taking a dual 2-ohm woofer and wiring to 4-oms and then bridging is electrically the same as just taking each individual coil to channels 5 and 6 of the amp you want to use.... You get the same abount of power. Tim at Wetsounds might chime in, as he might know of a reason for wiring it one way over the other, but it typically works out the same.
A dual 2-ohm L7 takes the same box volume as a dual 4-ohm L7 so don't worry. ALSO, the L5 8 works in same volume as L7 8 so you don't need to be concerned about changing boxes.
If you have concerns, check out the KICKER U ap for android or iPhone. It has box volume calculators, tuning calkculators, tone generators... Lots of nifty audio tools right there in one simple ap. YOu can verify what I shared regarding box volumes.
Good luck and let us know how it turns out!