I've got my CM-30s hooked up in my studio, and think they are great. They appear to be transparent to my PA800 speakers, but with more volume. Like Cassp, I am only experimenting with stereo because it's there. Is there any rule of thumb as to how far apart to place the speakers in a 20x40 room. I am using the stereo link with one cable unless I need more inputs from the second speaker.
The bass is better than I expected, though naturally not like the Z-22, but then that's fine for what I'm doing. I put my vocal through them and it was quite good. However, it being a dry signal and no harmony, I will run it through the PA800. As reported previously, they are built like a tank and exceed my expectations.
I am sure there are better speakers out there, but considering the price and size, they are hard to beat IMO.
Bernie
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pa4X 76 ,SX900, Audya 76,Yamaha S970 , vArranger, Hammond SK1, Ketron SD40, Centerpoint Space Station, Bose compact