I used some gasket tape for the coax section for the Celestion and the built-in gasket on the Estoterics to seal up each respective driver. The coax chamber got about 8 oz of polyfill for the ~0.4 cuft of space it had, while the ported woofer chamber got a lining of 1" thick project foam from wally world. Overall driver install went well. I only had to use my tap kit to clean out one of the 10-24 threaded inserts on the coax chamber. For the cosmetic benefit of using machine screws and multiple on/off installations, those little buggers can get mighty particular about thread-ins! Gotta be careful not to snag one and accidentally twist it out of the MDF hole it lives in.
The last thing I learned at the end of the night is that my Dayton Audio speaker stands may be a bit undersized for these stand-mounters. I didn't feel very comfortable putting this cabinet up there. Took a few attempts at positioning the speaker on the stand to get the balance point right, and the footprint of the stand felt smaller than it should be. I will definitely need to add re-worked stands to my to-do list so these cabinets have a stable permanent home in the future!
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