AVS Special Member
Join Date: Nov 2006
Location: Bushnell's Basin, NY
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Moving the CC after setting Audyssey did 2 things:
- changed the phase relationship with the other speakers (think transit/arrival time)
- changed the SPL at the listening position.
Audyssey sets speaker level and phase relationships based on measured sensitivitiy and arrival times. It uses a full range FR scan, with a "chirp" at the end for timing. Your AVR should have a menu option that allows you to view speaker level and distance settings and adjust manually, but there's a third thing at work.
Speaker frequency response varies with proximity to boundaries. You don't realilze it, but the TV is a wall over most of the CC's range. My CC is also below the TV, and I use a different XO design than I would if it were free-standing, away from boundaries, in order to flatten its uncorrected frequency response.
Try running Audyssey in the exact listening environment you use and see if that helps.
That said, it could be that this CC isn't a good match with the rest of your system, or your room. My first DIY speaker was a CC, a vertical speaker laid sideways, and after learing speaker design, I discovered the tweeter polarity was wrong, and it needed a little padding. Even with those corrections, it doesn't do dialog as well as my current CC, which was designed as a CC even as it cost 2x it's predecessor (same mid-woofs).