This amp rocks. Sound is so good, that I bought 2 of them, to bridge my front channels.

J'ai acheté cette ampli il y a 6 mois pour mon système 2eme zone a la maison. Rien a dire de négatif! Puissant et sans faille. Tres heureux et surtout surpris pour une ampli de se prix!!! Je recommande :-)

Been looking for a amp for my drum kit and this is the perfect solution. Best bang for your buck by far. Behringer does not disappoint.

I bought this amplifier to run two 10" in-wall subwoofers that I installed in my garage when I heated/ finished it. I knew that my stereo receiver wouldn't have the power to run 4 speakers and two subs, so I opted for this amp after a lot of reading and research. I have had the amp in play for the past 4 months and I am very pleased with its performance. I rarely run it at more than 1/4 volume and that gives more than enough punch in 2, 10", 8ohm subs (w/ boxes built into the wall). I will say, it is very fast, the bass is quick and not muddy at all.The only drawback of this amplifier in a practical sense for home theater, etc, is that you may need to pair it with an equalizer as the amp itself only has volume control. I did this in the garage instead of running another lowpass filter to my subs, but this was just because of my implementation more than anything.The fan can be a bit noisy but if you have it in a cabinet, or the music/ theater system at a typical volume for listening then I doubt you will hear it, I don't until I turn the music down.Overall, great performance for the price and it sounds great!

My 40 year old Bryston 4B, used as a subwoofer amp roasted one channel last week and appears un-repairable, so I started looking for a low investment replacement (I am retired and have much better ways to spend $1000+ than on an amp these days). I read the reviews and comments regarding the KM750 here on Amazon (none of the high end magazines and audio webzines have gotten around to it yet) and for the price decided to take a chance.For reference the 4b was reviewed by The Audio Critic in 1978 and declared the then–$1195 amplifier "the best power amplifier we've been able to find so far" (Vol.1 No.4, p.41).The KM750 arrived today so these are my initial impressions.Still in the box, the first thing that struck me is how light it is...especially compared to the 4B. Setting it up is pretty straight forward, but the binding posts arent what I would expect of something labeled "binding posts". They are not 3-way or even 2 way posts. They do not accept spade lugs or banana plugs, only bare wire or pins. I suspect the contace surface is minimal too since the tightening nut is non-conducting. At least the pin/wire post accepts as large as a #10 (solid) copper wire and tighten up reasonably well. I wasnt prepared to go with a pair of SpeakON connectors but ordered a set today as that seems to be a better connection than these "binding posts".Once hooked up (RCA inputs, Stereo, .77V sensitivity, Limiter on, Ground isolation off) to my system - it drives 4 Dynaudio 30W54 drivers configured 2 channel compound loaded in tuned enclosures - and powered on, I was pleased with the low/lack of fan noise. I had read some owners found the fans noticeably loud, even when when first powered up. Even after a couple hours playing demanding music at pretty high levels, the fan noise was all but imperceptible when the room went quiet.As this amp is used below 100Hz (6db lopass so there is some mid-upper bass reproduction as well), I cannot and will likely never hear how it sounds in the midrange and treble. Its still brand new so things may evolve with time but as new it does a great job of driving the Dynaudio 12" (4 ohm nominal impedamce) drivers to which it is attached. Very controlled, deep and dynamic. Where the subwoofer overlaps the KEF/Class A MOSFET amp mid-range, this seems to blend as seamlessly as the 4B did before it.I have not removed the top or done any bench testing, but on some pictures I have seen I would guess impedances well below 4 ohms would severely limit the amps output because of the heat dissipation limits of the heatsinks I have seen in photos.So far (1 day) I am extremely happy, this amp bats way above its price.Update (3/21/18)I have had the unit in place and running for a few days now. Still love it. Nothing to complain about. I have switched the ground lift switch to the lift position as I occasionally heard a low level 60Hz in the subs when idle. They are now dead silent. Also went with the SpeakON connectors from Neutrik for the speaker outputs. The speaker wire I use is #8 stranded and the terminals on the Neutrik NL4FX connectors are limited to "4mm^2" for the screw type termination which works out about #11 stranded or #10 solid so I added some #10 solid pigtails to my speaker wires in order to attach them to the NL4FX connector terminals. I think the SpeakON provides a better mechanical and electrical connection than the 1-way binding posts supplied with the amp.