I have the RX model. At band practice last night I noticed a crack between the front trianglar port and the right most speaker. I don't know how it could have happened other than shipping a few months back but I never noticed it until now. The cab has not moved since I took it out of the box. Also I had a terrible buzz coming from that cab. I could control it by totally cutting the horn but then the cab really sounded dull. I don't know if the horn blew or if it's related to the crack. I took pictures and e-mailed Marc this morning and he is working on building me a replacement. He is really great to work with. I had just gotten my sound going with this new rig... tube amp, nice new cab, flats on my p-bass, and now this setback. Anyway, I just needed to share. I feel a little better now.