I have a chance to buy a "Dumble" amplifier...trust me, the price is way right, like "yard sale" right, what is the story on these amps?? This is an amp head and a 2x12 cab, both say "Dumble" on 'em. I played thru the set this evening and I really like it, makes my Plexi sound inferior as a matter of fact. Old dude (like, 78 yrs old) is selling everything out of his house and moving to Alambama, sez he needs the $$. He sold his 1960 Lester to a collector in Miami Friday for, are you ready for this??....$4,500. He said for what he paid for it new, it was a really nice return on his investment......He said he felt bad about taking advantage of the guy... So I need to know, before I finish paying for it ($100 deposit to hold it, $400 balance), just what is it?