And much to my surprise, the fan stays entirely off under normal operation, and Google tells me this is how the thing is designed to work. I think I've found my new practice amp. Aside from sounding great, having zero fan noise in my itty practice room is REALLY welcome. This thing also takes up almost no space. Double win. My only complaint for using this for practice is the lack of a aux input. I've already got plans to wire up a few jacks and resistors into a passive mixer box to blend the effects loop send with my mp3 player output. Problem solved (well, it will be soon). The headphone out seems to work as advertised. Seems silly to practice with a 800W amp, but that's what volume knobs are for. Oh, ya. I plan to use it with the band, too, but I'm just shocked how useful such a powerful amp is for my practice room.