I've had a BG250, the original Mark I with only 1 Toneprint for many years. Recently when loading the combo into the car, I head a "clunk" from inside the cab when it's tipped forward, backward or to the sides. I attempted to take the speaker out to see if something has come loose inside the cab (brace, perhaps), but find that the speaker is glued or otherwise attached to the baffleboard with something other than the screws. I thought I might pry it loose but the firsts attempt didn't budge it, and I feared damaging the board. Anyone here removed a speaker from this combo? The cab doesn't appear to rattle when I play through it.