AR 150.2 noise


I have a "buzzing" coming from both channels whose pitch is B2 (the B one octave below Middle C). It is present when everything is up and running, as well as when only the amp and speakers are connected. All equipment is running through a PS Audio Quintet which is plugged into a dedicated line. I plugged the amp into a separate ac outlet on a different line with the same results. Swapped power cables, ran a cheater adapter and also used a PS Audio power cable with the ground pin removed - no real noticeable change.

I think I know the answer to this question, but is this buzzing normal for a digital amp? It seems I can hear it constantly, and from a few feet away. Is it in need of a trip to Minnesota? Thanks for any help.
wooguy1

Showing 1 response by eee3

I also have the 150.2 and have not experienced the problem you describe. So, to answer your question it is not normal for digital amp, at least not the 150.2.
My question is has the noise been there every since you had the 150.2? If not, then it probably is the amp. Also, if the noise is there only when the amp is powered up, then again it is probably the amp.
I like Palewin leave my 150.2 on 24/7 and when everything else is off, dead silence.
Just as an aside, it might be useful to also check your preamp as well to be 100% sure.