From the rainbow web site and other sites selling the power line, it seems the Order goes
Reference-->Platinum-->Profi Vanadium-->Profi-->Power CS-->Power CMX-->Germanium-->Sound SLC-->Sound SL-->Dream SLX-->Dream KX-->X-Line
Am I wrong?
I currently have Polk MOMO mmc6500's and after I deaden the door and see if the mid-bass tightens up, I was considering upgrading to Rainbow Profi-Vanadium kick set. I assumed it was a higher line than the Power line.