bradenwyatt92 Posted August 30, 2014 Report Share Posted August 30, 2014 I am new to the site, and I'm looking to build a box for two Alpine Type-R 12D-4 subs. I'm running them on an Alpine MRX-M100 have have enough max space for a 42" long, 15" tall, 18" deep box. What type of ported build would be best for these subs? Link to comment Share on other sites More sharing options...
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