Hi all,
Here's the essence of the email response I sent to Donincos. It may be of interest to others who try fixed test-tones at high playback levels:
It's likely that the fixed 200-Hz tone is exciting a resonance, probably a vibrating speaker lead to one of the drivers. If you are running fixed tones at very high levels (85 dB SPL and louder at your listening position), they will cause resonances that would not occur on complex music or movie soundtrack playback.
That said, the real question is: Do you ever hear these buzzes with music or soundtrack playback? If you do, then use an Allen wrench to undo the screws for the woofers and tweeters, remove them (the leads only clip on in one way) and see if there are any wires next to wood that might buzz. If that doesn't cure it, and you do hear the buzzes with music or movie playback, email or phone our service manager, Joe Vassallo (joev@axiomaudio.com). It could be a driver problem (it's rare, but it does happen), in which case we would replace the offending driver.
Regards,
