In the September 2009 issue of Guitarist there is an interview with Michael Landau where he briefly discusses Dumble and his amps: Do you still have your Dumble amp? "Yeah, I have a Slide Winder. It's a four-input amp, like a Bassman. He's only built a few of them - the first one I saw was a combo. Eric Johnson has one I think. In fact he built me an Overdrive Special and it's been done for for around six months, but trying to hook up with Dumble is a little difficult sometimes. He's really a great guy - have you ever met him? He's a tough cookie to get in there but he's a real sweet dude - he's a trip" There's so much snake-oil about those amps because they're so rare - what do they do for you? "Well it's just about his attention, you know. He'll sit down with you and he'll really listen to you play. You'll go out there to his house a couple of times when he's building an amp for you and you'll play through a bunch of stuff. He's real old-school - he sits and listens to you play and he'll tweak an amp in the final stages of develppment - you can really hear it doing stuff. I'm not technical, but it's special. The notes just jump out and they're real big, y'know? It just feel so open. I've used it live and a lot of recording" In the interview he also mentions the Custom Audio OD100, a Badger and Fender he's using. Great interview.