I have the Eros Mk II with The Innersound amp, crossover/bass amp and preamp. I upgraded Rogers cables to Tara Labs RSC Air ones (balanced, from preamp to crossover) and Tara Labs The One (balanced, from crossover to amp), and speaker wire is Tara Labs RSC Air one as well. It was a tremendous upgrade and I think the system sounds absolutely spectacular. The low level detail, resolution and holographic soundstage is startling. I have Shunyata Python Power Cords going into Shunyata Hydra 8 for the amps and diamond backs going into Richard Gray for the speakers. I know Roger is an advocat of using his cables and not spending the money (to his credit) but I gotta say, the Tara Labs cables bought the rig to a new level. (I'm sure the Pythons helped as well but that came after the cable upgrade). Adding the Shunyata's was a whole other ballgame.