GIK's Tri-Traps are constructed with plastic nowadays? Whenever I bought my Tri-Traps about three years ago the framing was made from heavy duty cardboard and 1"x 1"s, which worked out good because I trimmed a couple of them to fit on top of an existing pair already in he corners to fill each front wall corner from floor to ceiling. The one thing I don't like however is that there is a slight coloration difference in the black fabric between the two pairs that is somewhat noticeable, good product overall though.
If nothing else I'd at least give the bass traps a try, they certainly made an improvement in our room.
