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133 Posts
I was sitting in my room last night watching a movie and all of the sudden I had a question. Why not port your IB enclosures? Sounds crazy and impossible, right? But take my room for example.
My HT room is in the basement. Underneath the stairs is basically unusable space (other than storage). Why not make that entire space (measured to 132 cu. ft.) a huge ported enclosure? According to port length calculator software, a 131 cu ft enclosure tuned to 15 hz would require a very short port at "normal" port sizes. In fact, a 12" diameter port would only be 1.56 inches long. Why not use a mammoth subwoofer that can already get crazy deep (like an LMS 5400 18") and tune it to, say, 10Hz? That would need a 12" port at 14.49" or even an 18" port at 39" which would be pretty attainable...
Acoustically, what'd be wrong with such an enclosure?
My HT room is in the basement. Underneath the stairs is basically unusable space (other than storage). Why not make that entire space (measured to 132 cu. ft.) a huge ported enclosure? According to port length calculator software, a 131 cu ft enclosure tuned to 15 hz would require a very short port at "normal" port sizes. In fact, a 12" diameter port would only be 1.56 inches long. Why not use a mammoth subwoofer that can already get crazy deep (like an LMS 5400 18") and tune it to, say, 10Hz? That would need a 12" port at 14.49" or even an 18" port at 39" which would be pretty attainable...
Acoustically, what'd be wrong with such an enclosure?