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    Design a new subwoofer box for HT. Triple chamber anyone?

    I got a good deal on a THX approved EV TL440 cabinet from a theater. I've been using it as a HT sub with the step down kit installed and active EQ. (Lowers box f3 to 24 from 33hz, 6db boost at 29, and 12db rolloff below). So far it's working pretty good with being driven by a Crown cTS 1200 in...