I have a set of BeoLab 8000 (Mark I), functioned very well for long.

Since a while one of the speakers has lost the balance in its sound spectrum. It produces a shrill / sharp sound. This is not like a high pitch tone, but the 'highs' sound dominant, shrill and sharp.

What I have checked:

  • I have tested by putting audio signal via power link and via RCA; no difference.
  • I have changed the tweeter for another (good) one; no difference.

Anyone has a suggestion what the cause could be, and what to do? 

Location: The Netherlands

My B&O Icons:

Beoremote-Beo4.png Beoremote-Beo4.png
Beovox.png Beovox.png
Beosound.png Beosound.png
Beosound-9000.png Beosound-9000.png
Beolab-18.png Beolab-18.png