Rear Subwoofer for an F430 *

Hi All, I am currently mulling over 3 separate speakers to use as bass fill I have installed an alpine head unit, Type R speakers up front with the Alpine 4x100 amp in back. Amp is set up to push 100w to each speaker and I can bridge the 2 remaining for a 200w load. Question is, the speakers I am looking for are not really available in Japan so can not try before I buy. Curious as to what would fit behind the seat? Here are the 3 I am looking at.

Alpine Type-R 8"
Alpine SBR-S8-4 Ported enclosure with one 8" Type-R subwoofer at Crutchfield.com
Width (inches) 19-1/8
Height (inches) 11-1/4
Depth (inches) 6-1/2

Alpine SBT-S10V
Alpine SBT-S10V Truck enclosure with 10" subwoofer at Crutchfield.com
Width (inches) 21-7/8
Height (inches) 15-1/2
Depth (inches) 7-1/2
Second Depth (inches) 4-1/4

Rockford Fosgate R2S-1X10
Rockford Fosgate R2S-1X10 Sealed truck-style enclosure with with one 10" Prime subwoofer at Crutchfield.com
Width (inches) 19-1/8
Height (inches) 13-1/2
Depth (inches) 5-1/4
Second Depth (inches) 3-1/4

Any advice/pictures would be appreciated. I know there is always a custom option but not really keen to modify the interior.

 

I guess a Bazooka could be an option as well...

Bazooka Enclosures at Crutchfield.com

 

I just need a simple pre-made box that will fit. Not trying to drown out the exhaust notes ;-)

 

Meh, went with the Rockford Fosgate 10s