Pros: HD600 became more balanced and overall audiophile improvement. Awesome build quality.
Cons: Ultimitly power cables made more of a difference and I sold it
This cable improves the extension in both the treble and the bass and gives the whole spectrum a balance reminiscent of Beyerdynamic T1s. The Midrange becomes sweet and tones seem to take on a hue that serves to almost always improve the music. Grain seems to disappear, though transparency is only a little improved. The bass seemed to get deeper and also improved in tone.
Overall a big improvement in audiophile qualities in the music.