Here is a thread on the QSC CP series. http://forums.musicplayer.com/ubbthreads.php/topics/2951139/re-qsc-cp-series#Post2951139

I was interested in the CP series myself for its lighter weight than the K series. In the end, I went with the K8.2. I didn't care for the 1st generation K series. They sounded a little too harsh.