I'm thinking that performing an Audyssey MultEQ XT32 calibration blew out the tweeter on my center channel speaker (Monitor CS2 Series II). This is with a Denon AVR-2112CI receiver.
The tweeter physically looks intact but high-frequency response has suffered. Highs came back for a bit after turning off the system for 10-15 minutes, but seem to have gone away again.
Because Audyssey calibrates at reference level, I can't recalibrate at lower volume. I wish I could as I never listen at reference level anyway (usually more like 10dB under reference). I think the loud test tones were more than the receiver/speaker combo could handle. Either that or I had a marginal tweeter that just failed.
So some questions:
- Which tweeter replaces the one in the CS2 Series II? I'd think I could just replace it.
- Any thoughts on how to avoid this happening again? The Denon is rated for about 100 watts per channel. Audyssey XT32 only engages one channel at a time, so I wouldn't think that I'm clipping the amp. My real-world listening is never as loud as those test tones, so if I can calibrate without damaging the speaker, I should be good to go.
- If the tweeter can't be replaced individually, I've thought about getting a pair of Monitor40 Series II instead of another CS2 Series II. I'd use one for a center channel and put the other one away.