GCPH - hum when gain is turned to 2/3 o'clock


#1

I own a GCPH phono stage and I am pretty happy with its performance and functionality, I use it directly with a power amplifier, however if I turn the gain control to 2/3 o’clock hum and noise can be clearly heard. I have disconnected the phono and the noise is still there.

Is there a way to eliminate this noise?


#2

It is the ground wire connected from the board to the chassis. Send me an email I will show you how to eliminate this hum


#3

Hi there, here is my email: gasparini.giuliano@yahoo.co.uk - thanks