This is an excellent little mixer, brilliant value, and does everything I wanted. I'm using it with a small PA (actually a Behringer D205 active monitor) because I wanted more inputs and some reverb. I recommend it and would buy another, in fact if I wanted to expand my PA with more inputs I would just get another of these and run them as a pair.
I don't like the way manufacturers use silly code numbers to imply more channels than you really get, It's a 4-channel mic mixer with up to 4 mono/stereo line inputs, some of which may be used up by signals from your own system, eg fx return or a second mixer..
It's as small as it could be given the number of channels etc. Looks neat and professional.
The sound quality seems to be fine, no perceptible noise and everything sounds much the same as when plugged directly into the PA's built-in mixer. I'm using good quality mics (SM58) and an L.R.Baggs guitar pickup.
The three band EQ works pretty well, In some situations I need to compensate for a bit of resonance in the guitar sound and this is enough.
It's ideal for us as an acoustic duo (Guitar + Voice + Clarinet) and I can see it would work pretty well for some larger groups.
We use two or three mics and a guitar so the four main channels are perfect.
I've tried it with an additional small mixer feeding into one of the line channels and that all works well with no apparent noise so you can expand your mixing capacity easily, an obvious route would be a second one of these.
Phantom power is provided if you need it. I have a condenser mic and I've used it with phantom power alongside Shure dynamic mics. Some people have misgivings about phantom power damaging other mics but the expert opinion seems to be that's it's not an issue with good modern kit.
The reverb is pretty crude, comparing it with the reverb in my basic Cakewalk DAW which gives a rich spacey effect, this one sounds pretty "clangy" So I only use a little bit to compensate for a 'dead' room.
The whole effects unit is a bit of a problem as there is no documentation (the manual refers to an appendix with more info about fx but I can't find that anywhere and I've searcheds the Behringer website), many presets appear to have little or no effect and you have no control over any parameters.
So it's only useful as a very simple reverb or echo unit with ten presets of increasing impact for each of those.
Compared to the Copicat I had in the 1970s it's not a very sophisticated thing. But the additional cost compared to the equivalent Behringer mixer without effects is a lot less than a cheap reverb unit so I can't complain too much. It's possible to route the fx signals through an external reverb unit if that was important for you.
I'd like to see some EQ on the line channels. That would allow more control of pickup signals from acoustic instruments and the mixer would then be very suitable for folk club type gigs with a variety of performers. But mixers with that amount of control are more expensive and bigger so I guess it's a trade-off.
The little black gain controls on the mic channels are very hard to see and you might want yo put a little white or silver ink/paint on the indicator ribs to be able to see what's going on.
So very good value in a neat package and I'm extremely happy.