Monster Cable PRO 3500 Rack PowerCenter  

I bought this a couple of years ago and then I thought it was a great buy. However, after two years of light use, 3 hours once a week, we turned it on and the abnormal voltage light came on and the receptacles would not power up. I unplugged it and took it home and after a day I tried it out again in my studio.  I left it plugged in for about two weeks and it finally showed the abnormal voltage light again. the receptacles did power back up this time. I'm sending it back for repairs and if it cost over $100, they can keep the piece of crap! Don't waste your time and money on this.  What they do, they do well...until they crap out on you. I wouldn't use this anymore on a gig even though it's a quiet as a mouse....if and when it works!

I have had three of the Monster 3500 units and I have now given up on them for live outdoor use. Studio use may be fine but the first time I used mine brand new out of the box I used it at a live sound venue with a 6K Inverter Generator. The unit's receptacles lost power after a a set and I could not get them to work after powering on/off. I sent the unit in and got a brand new one and the same thing happened twice (and with regular commerical power service). Do your research, it is way over-protected for outdoor use.

This is a great piece of gear.  It absolutely does all that is advertised.  It is quiet and very clean and transparent - the way power should be.  It monitors incoming voltage continuously and if that voltage spikes at 132 or higher - it will automatically shut down everthing attached to it saving your equipment.  I own 6 of these - one in each rack.  You could not pay me enough to turn on my equipment without it 1st being pluged into this 3500.

I bought this on a whim as I was purchasing two sets of noisless pickups.  I was playing at a place that I knew to be a "HISS & Buzz" nightmare. This place uses flouresent lighting as well as dimmers on their stage lighting. A virtual nightmare for the mmusician trying to play there. When setting up, I instructed my guys to plug everything into the 3500. We plugged everything, I mean every amp and anything else except the lighting (which were plugged into wall sockets on different circuits) and the results were AMAZING! Dead quiet, not a hiss or buzz to be found anywhere in the PA system. Everything was great. I am sold on this product.  By the price I can see that Monster is very proud of their product.  They should be.  This thing is Awesome! I hope it lasts as I would hate to have to buy another one but, I would because it's that good.  3 stage filtering and power up sequence makes this thing one of the handiest tools a gigging musician can have. If you want a nice quiet PA system and amps, Get this and you won't be sorry you did. I wasn't!  Thanks Monster.

Having read the reviews I was hoping for a significant change in the noise floor of my recording set up. Everying (Mixer, Combo amp, Boss Gt-6 Guitar pedal, Yamaho MO8, powered speakers, and computer) are plugged into the correct outlets for their hardware type but I still don't notice a big change in my amp's noise floor and my powered speakers have a bit of a buzz to them the same as normal. Not sure if there's something I'm doing wrong (feel free to email me if you know) but right now my 3500 is being used as a glorified power bar that has a nice sequential power up (which I do like).  As far as noise filtration, I don't notice any.