for over a decade i had my source and preamp stack near my listening position and amp/s between my speakers. Cables ran nearly 30 feet. They were usually unbalanced, with a faraday shield. Nothing fancy. Noise from those interconnects was never a problem. I also had balanced cables (both preamp and amp were native balanced - use half or the entire signal), but rarely used them for practical reasons.
I actually think its a **good** idea if it allows you to minimize speaker cables, or place an amp where it gets good ventilation, or some other meaningful benefit. Of course, my cables never cost a gazillion dollars a foot - which with some stuff is a very real consideration. A few fractions of an ohm and the tiny added capacitance are really of no consequence when the termination is 10-100k ohms, resistive.
I actually think its a **good** idea if it allows you to minimize speaker cables, or place an amp where it gets good ventilation, or some other meaningful benefit. Of course, my cables never cost a gazillion dollars a foot - which with some stuff is a very real consideration. A few fractions of an ohm and the tiny added capacitance are really of no consequence when the termination is 10-100k ohms, resistive.