I have a Texas star amp and Iota Dls-55 powersupply the Amp sits on top of a 4 inch axial fan with fan blade guards no mods to the amp to mount the fan. It simply sits on top of the fan held on by a wire tie. Will sell 325.00 shipped, insured, Double boxed in origional boxes with all paper work in like new condition. Grogan11@yahoo.com