help with a RLP-12 ported

[LowLinc 10+ year member]

heres what i have:

RLP-12 (D2) in a 1.75 sealed box running off a us amps 50-HC (375rms @ 1 ohm underrated) its in the trunk of a 88 tercel.

i want to build a ported box to get it louder but still retain most some of the SQ.

can someone help me design a ported box for this? should i port it thru the rear deck? i have 15" of height inder the rear deck and 24" between my rear speakers. depth doesnt really matter.

here are the specs off soundsplinter.com:

Dual 2 Ohm

Qes: 0.226

Qms: 2.470

Fs: 23.43 Hz

Re: 3.7 Ohm

Ls: 4.060 mH

Rp: 7.478

Vas: 87.73 L

Mms: 177.9 g

Cms: 259.2 u

Bl: 20.70 T*m

SPL: 88.81 dB

Sd: 0.0471 m^2

Xmax: 24.2 mm

Displacement .15 cu ft.

Click to read more...

 

[iceteebone 5,000+ posts]

1.75 is pretty big for a sealed box. I ran my ported at 1.8 net and it sounded great.

 

[LowLinc 10+ year member]

moe lesters plans for 2 cu ft at 32 hz plans 1 and 3 fit my trunk. the only difference is the port volume, 24 or 30 sq inches. which would suit the rlp better?

 

[mlstrass 5,000+ posts]

24 would be fine as I've built 6 boxes for RL-P 15's and always used 12^2 per cube. 30-32Hz on the tune sounded the best...

 

[LowLinc 10+ year member]

cool, thanks for the help. now i can get to cutting.