I guess it isn't a huge secret that these are pretty good amps for the money -- I picked up a '73 YBA-2B a few months back after playing through another one at the studio in which I was recording, which blew my mind. When I finally got mine and had the chance to bring it out and gig a little with it, it was almost loud enough... but not quite. So, I threw in a JBL D130F, and it's definitely louder. Thing is, I'm not quite sure how I feel about the sound of it. Anyone who's seen any of my posts/replies here in the amp section has probably seen at least part of the story in which I found the world's greatest-sounding SFDR a month or two ago and it's making it very hard for me to appreciate the other stuff I've got. Anyway, what I'm really curious about is a few things: 1, anyone else have one? 2, what speaker(s) have you tried? 3, ever have any issues with speaker rattling? I think that's what it is... with either of my JBLs I'm getting a rattling sound that is rather unpleasant. 4, thoughts on the ballpark value of this amp? I think I got a damn good deal at $200, but if I did decide to turn around and sell it, while I'd definitely ask more than that, I have no idea HOW much more. And finally, 5, anyone sell one of these and then regret it?