Box help fpr Alpine SWR 1521D

[john64]

Hey guys, I just finished a nice sealed enclosure for my Alpine SWR 1521D, I have it wired to 4 ohms on my Alpine MRV 1507 (bridged). The enclosure turned out to be around 2.8 cubes after all displacement. It sounds real nice, but I would love to see what it can do ported. What would your recommendations be for port size and length? I would like to do 2 ports. The sub is facing the rear, but the ports would have to face the passengers. Your input is welcome.

Car is an 85 RX7 //content.invisioncic.com/y282845/emoticons/naughty.gif.94359f346c0f1259df8038d60b41863e.gif

Sub specs are:

Fs:23hz

Vas:98L

Qms:9.84

Qes:.4

Qts:.38

X max:16.5mm

X peak: 33mm

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[Pickler 10+ year member]

That box looks really nice.