I used an Sa-12 classic for modeling. (.14ft3 displacement)
Mounting cutout: 11 1/8"
Depth available: over 12" (plenty)
Actual tuning is 34.75hz with corner 45s put in, 33.75hz without. (45s displace .12ft3)
***Note*** With 30in2 of port area and plenty of depth available, larger and higher power drivers will work. Adding an inch to width to this design on the non-ported side will add .12ft3 to account for higher driver displacement and/or desired lower tuning. A second baffle will only add .04ft3 volume and .75" port length so its basically negligible and only for a strengthened mounting surface. Figuring all displacements accurately and modeling the result is suggested for best results.
Mounting cutout: 11 1/8"
Depth available: over 12" (plenty)
Actual tuning is 34.75hz with corner 45s put in, 33.75hz without. (45s displace .12ft3)
***Note*** With 30in2 of port area and plenty of depth available, larger and higher power drivers will work. Adding an inch to width to this design on the non-ported side will add .12ft3 to account for higher driver displacement and/or desired lower tuning. A second baffle will only add .04ft3 volume and .75" port length so its basically negligible and only for a strengthened mounting surface. Figuring all displacements accurately and modeling the result is suggested for best results.
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