I have two Ampeg b100r combos. The newer of the two (which was shipped from Bass NW in Seattle to me in Massachusetts last week) produces a loud speaker "pop" when it's powered down. The older amp does not pop. I called Bass NW and the gentleman who answered the phone said this is not a problem. The receptionist for the service department at Ampeg suggested that I take the amp to a local service center. What do you all think? Anyone else have a b100r that pops? I've experienced this with SWR (when turning the heads on IIRC) but never with Ampeg. Thanks for your time.