Which amp? Most of their stuff is just copied wholesale from popular models of the past. Isn't there a bugera 1961? Gee, I wonder what that's supposed to be. It wasn't "hey, let's take a Plexi and make it better", it was more "hey let's copy a plexi but have it made with questionable labor practices in the far east and undercut the original model". That's a lot different from what someone like a Jim Marshall or Randall Smith did. Yes, they started with existing models, but they both used that as a jumping off point to create new iconic amps/companies, which have in turn been copied by others over the years (some more respectable than others, a lot of the Carvin guitar stuff from the 80s/90s were Mesa killers, without being exact clones, more like using the same engineering brief, which of course is easier if you can peek at the other guy's work after he's done and made all his mistakes).