Sorry for the duplicate ... network problem. I have had a new HTD level III surround setup for the last month. My 6.1 setup consists of the level III center, two front towers, two bookshelves for L/R surround, and a matching bookshelf for the rear, and the HTD subwoofer, all driven by an Onkyo 797. Recently, I have begun to notice a distortion with the center channel speaker. With certain dialogue (probably in the upper end of midrange), I can hear a "buzzing" distortion at modest volumes. I first noticed this while watching Predator DVD (DD and DTS), but now I can detect it with others - Gladiator in DTS ES Discrete mode. The speaker sits on top of my TV with felt pads for feet. I have checked the connections and they are secure. There is no visible defect in the cones or tweeter, and the screws are tight. The distortion does seem to originate from the speaker itself. I know in various reviews that the HTD level III center is not as strong as the other components, but I have not seen anything written about serious distortions. Could this be a defect in the speaker, or a limitation? Does anyone else who has a HTD level III center channel notice this? Is there something else I should be checking? I have not yet had the energy to move the speaker around or test it further.