that's confused even me! lol
I've never come across anyone doing what you want to do. If you run at 2 ohm you create more power yes, but the more power goes through 2 speakers. my Genesis amp creates 2 x 95w @ 4ohm. when run in 2 ohm mode it creates 2 x 145w. Not double power is it. I wanted to run 2 SVC subs off it in 2 ohm mode so they'd both get 145w each, but there was no way I could do that so I now run them in 4ohm mode and it's sounding awesome. even with a mere 95w going into them.
if you buy a dual voice coil (DVC) sub you can wire it up to run in 2 ohm mode.
The best thing to do would be to buy the biggest baddest amp you can afford. that way you can run it in 4ohm with the gain turned right down and draw less current from the battery and create less heat!
Also, forget PMPO figures. these are useless. The RMS output figures are where it counts.
I was previously running 2 12" Alpine '1000w' subs off a Kenwood '1600w' Amp in 1ohm (I think). The bass was constantly cutting out under high load even with a power cap in there and a 90amp alternator! I'm now trial running 2 12" JL 125w subs with a little 2 channel Genesis amp kicking out 95w a channel and it's almost as loud as before. Once I get the front speakers running and have the ability to set the headunit right it'll be better still!
