It's in the basement and I've got some 10/3 SJO cabling coming up through the floor to a breakout box behind my audio gear. There are 2 independent 20A circuits. I feed the amp from one and everything else on the other. Input power to the Matrix comes from a spare 30A 220V dryer outlet.

The matrix weighs in at several hundred pounds when it's populated with batteries. 8-) The noise level is negligible. It's dead silent as long as it's got input power. When you lose main power, you hear a bit of fan noise and faint transformer buzz.

I had a few 2200VA APC rackmount units that I was going to use for this purpose, but the batteries turned out to be suspect and the dreaded "expansion of the goals" happened....and the rest is history. Let's just say my wife is a very patient woman. 8-) The flipside is that when we had an extended power outage during the last big nor'easter in CT, we had stereo, cable TV, VOIP phone service, and even a microwave all running off the Matrix for the better part of a day. One of these days I'll spring for the kit to just wire it into the main power panel of the house and then get some extended runtime batteries so it doesn't freak out with loads from the fridge and the well pump.

Cheers,