Elevate 3 MKII : A Common Fault

I had to return these before really getting to use them as the seem to suffer a common fault (look up high pitch noise online)

There is an issue with its internal power supply, it emits a loud irritating 15k whine as soon as connected to the mains supply, this is without anything else connected. when you turn it off the noise continues for 30 seconds. its not coming from the speakers but inside the Speaker housing. and its not a grounding issue but something wrong with the internal power supply. I am not the only one who had this issue.

Also they could have done without the bass enhance switch as they are monitors not hi-fi stereo speakers, and as such should reflect the audio without enhancement.

and then there is the 4 week wait for replacements.

In the end I just requested a refund.