Subwoofer box suggestions/questions

[02V8Sport]

I have 4 subs total. 2-12" Infinity Perfect 12.1's and 2-10" Infinity Perfect 10.1's. For now I have the 12's in a sealed box with 1.2 cubic feet per chamber. Sounds ok with 750 watts RMS going to it.

Problem is with the seats up the sound gets muffled a lot, seats down it rattles your brain.

Now the 12's in a sealed box at 1.2 c/f is as big as I will go. I can however do 2-10' in a bandpass or ported box of the same size and run the ports up through the rear deck hidden away to get the sound in the car.

Anyone have experience with bandpass setups in a LS? Im confused on what to do.

 

[Jibit]

not familiar with the LS's but do they have that carpet stuff for sound deadening on the rear deck? If so, you could try removing that to see if it does anything for you?