I just had a gig of 50 people, also, using my two CM-30's. The results were great for the entire tonal spectrum, and the volume plenty at 2:00 o'clock.
Eventhough I was playing some "edgey" music, the lows were tight and carried well. The sound was so good, I might try them with a sub, for medium venues, as long as the sub doesn't get boomy.
Bernie
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pa4X 76 ,SX900, Audya 76,Yamaha S970 , vArranger, Hammond SK1, Ketron SD40, Centerpoint Space Station, Bose compact