I have a Marantz SR6200 Receiver and Paradigm CC270 Center Channel. I have noticed that my center channel periodically gives a crackling sound during some speech (usually on lower toned male voices), and occasionally during loud action scenes, but not that often. This tends to happen more with the speech than it does during action scenes. I have read that some people experience this with certain DVD's (which is also in my case), but I also notice this while watching cable television (analog). I checked with my local Marantz/Paradigm dealer and was told that I was pushing the center channel to hard. I had the individual speaker level settings set at +13. I was told to lower the speaker settings and see if that helps. Well, I lowered them as follow: LF/RF +3 C +4 S +5 LS/RS +3 This did help some, but the ocassional crackling is still noticeable. Is this common or is there possibly something wrong with my receiver or speaker.