I have had a pair of Behringer MS20 monitors speakers. I’ve had them for a about 6 months or so. They have a fairly thin, but detailed sound for the price point. One thing with them is a good mix sounds VERY good, while a bad mix, or a badly encoded mp3, sounds woeful. I would ot call them mega accurate, but they do seem to show up bad mixes very well.
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Note that I dont use these for writing music on, mainly just general music listening.. in fact more as a high end set of 2:1 PC speakers than anything, which they are great for.