Now that I've had the chance to get a bit more acquainted with the amps, post 64 seems to hold true I am still to find any shortcomings or flaws. It is as effortless and clear as an AX-100, as alive and involving as an F3, and does the job in any aspect as well as I have heard possible from any previous amp. Today I got the chance to turn it up a bit (ok, a bit more than a bit), and no matter what the volume setting is, it still sounds the same, clear and effortless.Magura :)