I was going to do exactly as your friend described except wire the Romex into my Shuyata Denali Hydra 6000S power conditioner instead of an amp. The Shuyata Denali was intended to tale out any line interference.
Unfortunately, I was informed this was a NEC (National Electric Code) violation which might void your homeowners insurance if discovered after a fire for example. Other than that it is logical it would work if your power conditioner would take out any RF or other types of interference, rather than a ridiculously expensive power cord. Just a thought, not based on anything but common sense, admittedly not expertise.
Mike
Unfortunately, I was informed this was a NEC (National Electric Code) violation which might void your homeowners insurance if discovered after a fire for example. Other than that it is logical it would work if your power conditioner would take out any RF or other types of interference, rather than a ridiculously expensive power cord. Just a thought, not based on anything but common sense, admittedly not expertise.
Mike