Best box for two 12 Inch Rockford P1's

[samslowp1s]

I have a couple 12" P1's 4OHM in a prefab box hooked up to a Prime 150-2, both on their own channel. Don't laugh too hard, I got them on a deal that was too good to pass up.

I checked the recommended size for ported on Rockfords' website and it stated they 2.1cu ft for each. They are currently sitting at 1.6 tuned at a very high 51Hz. What would you recommend me to tune them to. I used Torres box calc and came up with.

Height 16

Width 33

Depth 25

Port 14H X 4W X 12L

Tuning on this will be at about 38Hz.

Will this be good for these subs or do I have to tune higher/lower to get a good all around response fro them?

They actually don't sound all that bad I just want a little more output with the available power I have right now. I figure putting them in a better box will help with this.

Anyone with any experience with them, your input would be more than appreciated.

Thanks

[alehound]

Yeah, I saw they are like 36 bucks each on amazon right now. As for the box, I would tune it a little lower (say 32-35 range). And while it should sound better, it likely wont increase output going with a larger box. You need more power. I am no expert though.

Build the box, and upgrade the amp when you can.