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So I mentioned to a few people about this subwoofer project. 2 48" x 22" sealed tempest x sonotube.
One guy I talked to that years ago built and sold speaker commercially said "sonotube's leak bass badly, you need to wrap that in lamanite like fermical to strengthen the paper. Better than that use a medium size drain tile (concrete or something pipe) and a 3/4 inch layer of shower board (concrete with fiberglass scrim) between 2 layer of plywood (he may have said BB) on either end to seal it up.
This made me question the whole unbraced paper tube 3/10 of inch thick. I was already planning to put some internal radial braces in.
Any other ideas?
One guy I talked to that years ago built and sold speaker commercially said "sonotube's leak bass badly, you need to wrap that in lamanite like fermical to strengthen the paper. Better than that use a medium size drain tile (concrete or something pipe) and a 3/4 inch layer of shower board (concrete with fiberglass scrim) between 2 layer of plywood (he may have said BB) on either end to seal it up.
This made me question the whole unbraced paper tube 3/10 of inch thick. I was already planning to put some internal radial braces in.
Any other ideas?