I know this may sound dumb but would canvas punching bags work as bass
traps? They are not filled with corning 70X but they gotta be better
than the foam crap you buy for $50.

Besides, being a boxing fan I think it would look really cool in my
studio. Everlast sells 40lb(Not to heavy to hang I dont think) 14"
diameter(Rather Large compared to tubes) 30" long canvas bags for
about $75.

Anyone have any thoughts?