A friend and I used to use the Furman AR1215 to protect our gear and to make sure we always got the good voltage our gear needed. these boxes were going for 350 to 500 a pop. his smoked after 2 years and mine about 3. Their new model that came out is around 800 bucks, I forget the model number. That IMO is just A crazy price. Its bassically a tapped transformer with some electronics to monitor voltage and tell it when to step up the juice and a surge/spike suppressor. When our other models died we tryed to contact the company to hopefully get these expensive critters repaired. We had no luck period. so I went shopping. I also found the spec's to the AR1215 as well.. the AR1215 would only handle 1400 watts tops.
I found a Voltage regulator that gives you a constant 120V from a capture range like 85 to 140 with all the other goodies, spike , line noise filter etc. in a rackmount unit by Tripp-Lite. Plus it handles up to 2400 watts, almost twice that of furmans AR1215 which now goes for around 500 bucks.
Get this!!! the tripp-Lite unit is 250.00 I ordered two units without blinking an eye. Furmans unit take up 1 rack space, the Tripp-lite takes up 3 rack spaces but its shallow in depth about half of Furmans. I've had the Tripp-Lite for about 6 months now and their working fine.
You always run into clubs with low voltage and those nights when the amp doesn't sound quite right or all of a sudden things sound different for better or worse, its probably voltage fluctuations.
Hey! I like to protect my gear anyway and if I can control things rate down to the fuel my amp gets I'm in!
If you've been seeking something like this, Tripp- Lite is whipping furman's butt in spec's and at half the price. you can't beat that.