Maybe somebody on here could help me with this question I have, I have two Brahma MkII 12's and they sound good I have a JBL BP1200.1 per sub, at 3.2 ohms in a 1.7cf boxes for sub. I want louder so I want to know should I go with a bigger box and leave them at a 3.2 ohm load or should I bridge the amp and leave the same box or bridge and go bigger box also. the amp is rated at 1200x1 at 2 ohms and 600x1 at 4 ohms, So I figured that at 3.2 oms I am running close to the 600 watts most of the time. Could really use some help, Thanks

So your subs are DVC2 then?

Are those amps strappable? You could wire both subs together at 2 ohms and put them on one amp. It'd be about the same power.

If you want louder, you need to step up to a ported box.

what size box and and what hz is best to have for those subs, I was thinking about trying 2.5 per sub.

run that amp lower, if you have the electrical to back it... I'd go 1 ohm, jbl's are crown made and beefy.

the box, bigger is better... go to rockford fosgate webpage, and they have a box building program. after first researching your subs ideal cube space, and tunning freq.

or better yet before you do that, get your stuff tested, see what freq. you get the best score at, then tune the box to that, or half way between that and whatever the manf. recommends...