geowick07 10+ year member
CarAudio.com Veteran
I am going to be building a 4 cf. box @ 36 hz. will be running two alpine type-r's, 1800w rms @ 1 ohm. should i use a double baffle, or just brace internally? and if i should use a double baffle, how would i go about adjusting the dimensions of all my pieces to keep the CF and the tuning right?