From a customer service standpoint, I disagree that the issue isn't on Ampeg, Slpbass81. If you do a search of the pf50t on google, what pops up in the first 3 pages doesn't show a thing about the backward compatibility issue.
Additionally, Ampeg touted backwards compatibility as a feature of the product in their advertising, even specifying the model cab that the OP decided to purchase. That created an expectation of compatibility on the part of the OP, and certainly on the part of other consumers as well, or it wouldn't be an issue.
Ampeg doesn't mention the issue in their advertising or on their website...hell it wouldn't have cost Ampeg anything to devote a sentence or two in the owners manual .pdf on their website to mention that there could be issues, but they didn't acknowledge it at all. In fact, they say on page 4 that it was specifically designed "...match perfectly with existing cabinets". I think the OP has a reason to be miffed. Those who are saying that Ampeg should be let off the hook because models change, no crystal ball, etc. aren't really acknowledging the expectation of compatibility that Ampeg created. That is an oversight that they should definitely address. It's good customer service to create realistic expectations.
Jake
They already told him they would help him out if he is the original owner and can provide proof of purchase which he cannot. Read the complete story before commenting.
