Recent content by Tony-25

  1. T

    Bose Companion 20 - power supply making high pitch sound

    Same problem. The high pitch sound is there, even with the control pod turned on. The only way to make it quiet is to unplug it from the power source. After the purchase, I unplugged it just to sleep but now I have to unplug it even during day time, it got really worse after only 4 months of use.