A Redbook CD-only system that needs no pre-amp and no extra cables. The entire system is served by a single, 240V outlet--not even a duplex. There is a massive, 240V isolation transformer plugged into that outlet that has six 120V outlets to serve amps, subs, power conditioner, etc. This is clean, balanced and relatively independent of  other circuits in the house. The system's soundscape is wider, quieter and more relaxed with this transformer. I highly recommend this as the foundation for any high-end system. The goal is that nothing should be ordinary, especially your power supply.