Hey all,   I bought a set beolab 8000 with beolab 2. When playing sound from it from my ouverture i can hear a loud squeeking noise from it. When measured it is 8017Hz. This of course is hugely annoying. I also got a set of beolab 1 speakers and another beolab 2. Those also have the high frequency squeeking noise. I have tried a lot of things but nothing seems to work, and i'm kind of out of ideas. Does anyone have any experience with this problem or does anyone know what i could do to fix this, or at least diagnose this further?   Thanks in advance