Turntable grounds and cable capacitance

ambiophonics

As some of you may know I recently built the bugle 2 phono pre amp and am now in the process of building a simple passive preamp with a stepped attenuator and home theater bypass. In doing so I had to decide how I would ground the passive preamp and if the grounds would be switched or just the signal. I've settled on trying a common ground approach first and if I have issues isolate the grounds. I decided this partially because most of my components are common ground, and the bugle 2 shares a ground for all the rca jacks and phono ground input.

This leads me to my question. I'm thinking of making a short set of RCA cables that contain just the signal and running the ground wire separately. I have some nice stranded silver coated 24awg wire that would work. Any reason this wouldn't work and eliminate some cable capacitance in the process? I already use very short cables - about six inches to the phono pre and they are unshielded with no interference issues.

Speedskater

Any interconnect system consists of two conductors. The Send and the Return conductors. In an unbalanced RCA interconnect, the center conductor is the Send and the shield is the Return. The signal travels through both conductors. If you separate them bad things can happen, like noise and interference.