One other thing. As you probably know, the PathAudio resistor has 3 leads. The extra wire is for a grounding shield. So far I haven't had much luck with the ground connection. My comments are based on using it without the ground shield. After I am sure it is fully broken in , I will try the ground wire again.
Of course, Charles could hook up his ground shields to his Troy Tripoint ground box. Maybe a separate Troy for each speaker...... That was a joke but it wouldn't surprise me if someone tries this.