I just can't stand the motor noise and took another three stars away.

Other than the motor noise, the sound quality is excellent, but the cheap motor noise is horrible

In truth, I should mention that the motor noise was a distraction at first

Other than the motor noise, the sound quality is excellent, but the cheap motor noise is horrible

I googled for "motor noise of Emotiva ERC....and found that I was not the only one

I am very impressed!------------------5/14/2016 Update --------------------The motor noise is getting worse and it is not acceptable at all

It has excellent sound quality, but the motor noise makes me worried