Behringer KM1700

Couldn't really go wrong with this. Does exactly what I need, whether I'm powering tops or monitors, it hasn't let me down. Can handle a serious bit of power too, without ever being overly pushed, it's taken anything I've thrown at it so far, from covering gigs in front of 20 people, to gigs with 500 people.
Would certainly recommend it to anyone who is looking for a cheap power amp to drive some speakers for practice or smaller gigs, or for powering monitors on stage.
Like everything else though, it's got it's limits, so I would recommend it more for powering on stage monitors over tops for any bigger show.

I've owned this amplifier half a year now and have been using it to power subwoofers. If i were to give you an advise it would be to only use this peace of equipment for what it is designed for. For example, don't try to run it bridged in 4 or 6 ohms, especially if you aren't going to play music in low levels. In other word it clips very easily, then again it isn't meant to handle that kind of task. Also, you should know that the advertised wattage given by the manufacturer is the peak output and not the rms rating. All in all it's been great to listen to and reliable in parties or small events. I should point out that it is very heavy not because of the components used inside but because of the exterior metal, nicely protected but could be better i guess.