FS Thunderfunk 420 I have owned this amp +/- around eight years it has served me very well fan switch was bad when I bought it (used) Dave sent me a new one at no charge! This thing is built like a tank! I played through Ampeg SVT for 25 yrs.+/- this amp is part of a transition to down size I'm using only Micro's these days and trying to thin the herd. This is a wonderful amp With killer support from Dave Funk. FYI they are upgradable as well although I never had a need for any of them! Great amp as it is! $425.00 Shipped in the CONUS!