I just received my B15 and have a 240V - 110V step down transformer on order so I haven't played it yet. I do have a couple of questions though. Did they originally have speaker wadding on the back wall of the cabinet? The picture shows what I think is the remants of it. I've got some lying around any general advice for replacing it? I have no idea what this is. I've emailed the seller but am still waiting for a response. He shipped it with the cabinet. Only half of the Ampeg logo on the front of the cabinet remains. Would heating it up to soften any glue be a good way of removing it? Or is it 'spiked' on the back? Interestingly it says B15NC on the inside of the cab but http://users.aol.com/bluemuse/portaflex.html lists the NC as a 2x15. Any ideas? Thanks for any help.
Congrats on a great amp. The cabinet needs to be damped, as you guessed, to reduce box colorations. Make sure you don't block the porting, but pretty much cover the interior. I used Deflex, but it's a bit pricey. As far as the other ?s, I have no idea. That metal piece doesn't look familiar.
Thanks for the help guys. I've been checking out fliptops.net and found this: I think the part I've shown above might be the screw down part for one of these.