Thanks very much!There is a gasket that sometimes sticks the driver to the cabinet.
Let me take this opportunity to also thank you, agedhorse, for all I have learned about my amp from your posts here and to compliment you for its superior design. Removing and replacing the speaker (which I managed to do) revealed just what a high-quality piece of gear it is. I have been playing bass for 45 years and have owned many excellent amps (GK, Aguilar, Ashdown, etc.), but my Walkabout 12 is the one I have enjoyed the most and stuck with for the longest. In fact, though I have had it for quite a long time now, I still feel no impulse to try anything else. Ok, I am a bit curious about the WD-800. My WA-300, however, will probably have to develop some problem that can't be solved before I really consider it.