The speakers are 89 dB. Up to a few months ago, I didn't hear buzzing at all. I did remove the amp from the Bryston BIT-20 and the buzzing didn't go away. I will try turning off other circuits in house next.
It takes an hour or so for the buzzing to appear, as if it is usage related or heat related.
It takes an hour or so for the buzzing to appear, as if it is usage related or heat related.