Wassup guys...Im looking into uprgading my current system: Sony xm-D9001GTR mono amp (550w @ 4 ohm/ 900w @2 ohms) pushing some new Sony XS-L123P5B 12's 330w RMS 1300peak blah blah....nothing too spectacular but due to the size of my sealed box, they hit pretty decent...

Was debating switching to 2 of the AA Assassin Series 12"D4...im guessing I cant push these at 2ohm due to the amp and them being DVC 4 ohm subs and technically they'd probably run best a 4 ohms on this amp(550w)...

For the hardest hit, should I just run 2 at 4 ohms(550w) in my current sealed box which is pretty big(dont know exact specs on it, maybe like 2.5ft in each chamber )...or run 4 of them at 2 ohms(900w) to get the most out of my amp in a 4 chamber box w/ 2.1 ft in each chamber?

Oooor....should I focus on a one sub set-up like a 15" AA Havoc Series 15"D2 and get a box built for it?? I dont think my amp would push that sub anyway...since I just got this amp Im really tryna build around it, despite what alot of people think about sony, there new amps are actually pretty decent....thanks alot

If you're trying to build around the amp you already have, I'd go with the Assasins and wire them to 4 ohms.

If you're trying to build around the amp you already have, I'd go with the Assasins and wire them to 4 ohms.

Thanks, that what I was thinking also...unless there's another sub out there that would give more spl type bass with the same amount of power going to it....

i say a arsenal 15 will give you 500rms

Do you have room for a ported box?