Hello everyone,

Here a technical problem of buzz (noise) in my speakers.

I got an RME HDSP 9632 (PCI) to replace my Digidesign 003 Rack (firewire as a source of problems in pc, at least for me).

However, this RME must be connected (with RCA plugs) into an amplifier Sony ES TA N77 Sony

This amp is a marvel to me.

The problem: there may be incompatibility between the RME and him - since heard a buzz (the noises that come and go depending on my use of the computer).

If I plug the RME on an NAD (well below the Sony ...), no noise. There's a design difference that makes the old Sony provides parasites with the RME.

What to do? I'm not sure that would be balanced XRL solution. It must be something else.

Thank you in advance for your help and forgive my bad english (I am unilingual French).