The power supply that I received with my Empeg is actually 15V...

Ah, yes. I was worried because the original power supply actually put out 15v when I tested it. The other one was putting out 18v and I was worried it was too much.

As you said, the 18v power supply works great. Today I was working on setting up all my "indoor" stations: Desk at home, livingroom at home, desk at work. I was scrounging power supplies to do it. I found out that even 15v isn't enough in some cases. I had a 15v/450ma power supply that didn't supply enough power to the Empeg and it kept trying to boot, but then it would shut down its display. That one's now powering my computer speakers because they seem to work fine with it.

I'm pretty darn happy with my setups now, though: I can swap the Empeg between four different locations (if you count the car as a "location") without carting cables around. It's quite cool to be able to pull it from the car, walk in the house, plug it in, and have it pick up the same song right where it left off.

At the moment though, it still doesn't automatically change the EQ preset when you make the switch. I have to go in and manually pick my "at home" or "in car" EQ presets. I'm told that's on the "to-do" list. Once that's implemented, moving it between locations will become totally transparent.