I use a Synergistic Research Reference Master AC coupler that has a 90 degree IEC plug to cd transport.Also this was a great upgrade from a SR Master AC coupler cord.Soundstage and dynamics really increased.I plan on buying a Shunyata Research Black Mamba II cord soon to replace it which is also available with 90 degree IEC.I would recommend the Shunyata pc's.I was very pleased with the King Cobra V2 to my DNA-2 amp and a Viper V2 to my dac.
