PC for Brsyton 4B SST

I can hear the buzzing without having to put my hear right up to the tweeter.

The volume range on my receiver goes from -00 where there is no sound. The next step is -61Bd where sound buzzing begins and it ends at+9Bd.

Here is what I've figured out so far. With the reciever on but not my Bryston there is no buzzing. Once I turn on the amp the buzzing starts.

With the amp powered and the Nad off there is still buzzing. If it ends up to be a grounding issue how can I go about fixing it. I've tried my best at arranging my cables but things are pretty tight back there.

Tvad,

Thanks for the time you've taken in trying to help me.

With the reciever completely disconnected there was no buzzing but hissing. I've tried connecting the amp straight to the wall and into my powerbar to little effect.

Believe I've tried myself and thought to give it anoher try. I wish there was a device that would pinpoint the problem instead of all this trial and error.

I have searched and found ground loop isolators ranging from $9.00 to over $100.00 but I'm leary.

Many Thanks

The hiss was still present with the amp connected to the powerbar. The buzz is Present when the amp is turned on. Connections are via RCA.

Here is what I've come up with so far.
Reciever on ,amp on but no RCA cables=no buzz
Reciever on,amp on connected=buzz
Reciever connected to amp but unplugged=buzz
Reciever on,amp off=no buzz
Reciever off,amp on= buzz
Both on=buzz
Source components connected/disconnected=buzz

At this point I thought it might be my rca cables but when I connected my speakers to my reciever like I used to have it the buzz was still there.

This is getting so confusing it's driving me to drink,smoke, and the night is still young.