The QSC MX700 is a stereo power amplifier which is no longer being made. It is pretty simple as far as power amps go, but this one offers up a good amount of power in a sturdy build. Each of the two channel has 1/4" TRS connections as well as those for running speaker wire to it. The front panel has gain knobs for each of the channels and LED lights to show power and clipping, as well as few other things. It also has a big fan in the back of it to keep this guy cool, as it can certainly get hot when you've got it on for an extended period of time. It is rack mountable and takes up two rack spaces in a traditional casing. The MX700 is suitable for powering up passive studio monitors of all types, and I have used them with both a set of Tannoy and JBL monitors. The main thing to remember is just to make sure that your monitors match up with this in terms of power and ohmage. I've never had a problem with the QSC MX700 as both sets of monitors that I've run through it end up sounding great and how they should on the other end. There isn't any noise at all - the bottom line being that the MX700 does it's job and it does it's job well. Even though they are no longer manufacturing the QSC MX700s, they are still pretty readily available as I believe that these were discontinued not too long ago. The price doesn't make it the cheapest stereo power amplifier on the market, but it isn't very expensive and I would say that it is worth it for such a top notch power amp. If you're got some passive monitors that need some serious power, definitely look into the QSC MX700.