Just did it last month with 4 lines and a separate subpanel with Romex wires and Furutech ports.
I live 4 blocks from powerlines (not sure good or bad) and berfore installation, the room had pseudo dedicated lines except for lightings
Improvement was not jaw dropping at any single aspect but there is noticeable improvement on almost all aspect. Before installation, I had to run preamps, phono off a conditioner; otherwire there is lost of subtle detail, soundstaging and texture. After the dedicated AC installation, the difference with and without AC conditioner is insignificant.
I live 4 blocks from powerlines (not sure good or bad) and berfore installation, the room had pseudo dedicated lines except for lightings
Improvement was not jaw dropping at any single aspect but there is noticeable improvement on almost all aspect. Before installation, I had to run preamps, phono off a conditioner; otherwire there is lost of subtle detail, soundstaging and texture. After the dedicated AC installation, the difference with and without AC conditioner is insignificant.