Roku soundbar pro making loud noise when turned off have to unplug to stop it.
I purchased My Roku soundbar pro about a month ago and I have had a reoccurring problem with the device. When I turn power off to the speaker it makes a consistent loud, buzzing noise and I have to pull the power plug in the back of the device to stop the noise. I returned the device to my local BESTBUY about two weeks later and they exchanged it for the same device but I have been having similar problems with the replacement. My device: model #9102R ser#YL0022887310, device id#2A1182887310.
Please advise on how to rectify this issue. Thank you.