I just got a whole complete Paradigm speaker set up and about a month later my center channel started to break up with dialogue. I took it back to the dealer and we tested it and sure enough it started crackling when we played the midrange frequencies from a test cd. He exchanged the speaker and I thought the problem was solved. But I went to calibrate my speaker with Avia with an SPL meter and I noticed the same crackling with my Mini Monitors that I use for surround!!!! Does anybody know why this is happening? My only theory is that my cheap receiver isn't powerful enough and it's doing the damage. Here are the specs for my receiver: SONY RECEIVER STR-DE725 Built-in Dolby (AC3) Digital Decoder Digital Cinema Sound Virtual 3D Modes Stereo Mode: 100 watts per channel x2, 8 ohms or 4 ohms, 20 - 20,000 Hz, 0.09% THD Digital Cinema Sound with 3 Cinema Studio Modes Surround Mode: 100 watts per channel x5, 8 ohms, 1,000 Hz, 0.8% THD S-Link Control Bus for A/V System Convenience 4 Audio Inputs/1 Audio Out 4 Video Inputs/3 Video Out 1 Optical Input/Output Two Subwoofer Outputs Does anybody know what is ruining my speakers? I have 2 surge protectors so I don't think it's that. ANY ADVICE WOULD BE GREATLY APPRECIATED!!!! james ps I have run some tests and I know for sure that there is now something wrong with the speakers, I just don't know what caused it.