Box for Alpine Type-R 12's


Unregistered guest
I have a couple Alpine SWR-1221D's on the way and was trying to find out what type of box I'd get the best results with. I've heard that, for these subs, bandpass is not the way to go, but I don't know for sure. Thanks!

Unregistered guest
for the best results out of the tpe R sub use a
42 litre ported box for each sub. go to for full specs on their subs

New member
Username: Swimminaggie

Post Number: 1
Registered: Mar-04
I have 2 12" Alpine R's, and had cartoys put them in a sealed box made to the specifications that came with the subs.. all I have to say is that they hit AWSOME. if you want more pics, check out my car on cardomain " "

Unregistered guest
K, I have one type S alpine 12 and can't find any spec's on how I should build the box...any sugestions??
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