1) I have all my current HD500 set up for stereo. With the single amp, do you have to set up separate POD presets for mono? Or can you just plug into the DT amp and have it run without changing presets? 2) If I like the DT enough, I may sell off gear and get a second one for stereo (but mainly for more live power, when needed). I like the idea of the smaller DT25. 3) How quiet/noise free is the DT amp for home practice? Any hiss, etc? I just got the Korean Tyler Variax (but waiting for all the parts that failed to ship with it -- battery, charger, etc.), and am again thinking about getting the whole L6 guitar system. Thanks for any responses.