Hi, Guys -

I have waited a while to post this because I wanted to see what came out of previous forum postings. Thanks, Giskard and Mr. Widget, et. al. for your input.

I have a project where I plan to use an old, resurrected, C37 enclosure as a subwoof box. I have two choices, assuming use with a BX63, which I have:

Use the C37 with new 2235H or recone D130 with C8R2235H.
Enlarge cabinet and use a 2245H.

In the first case, the existing volume is 5.77 cu ft, so I would cut down the volume to the 4.5 cu ft size of a B380. Could even add half inch ply to the inner surfaces for more rigidity and still fall under the required 4.5 cu ft. I might use the 2235H mounted to the rear of the baffle, using the existing grill assembly, making it easier to install in the C37.

In the second case, I could expand the cabinet by rear 6 inch extensions to make it 8 cu ft, or use stuffed fiberglas for the equivalent. In this case, I think I would front mount the 2245H and devise a new grill assembly.

Questions arise:

What is the downside of rear mounting for a subwoof driver?
Would the 2" setback of the front panel (C37) be bad?
Can I stuff the 5.77 cu ft C37 to make it usable with a 2245H?

Appreciate the help.

John