So, a few years later...I did end up putting Premium Power Links on both my Bryston headphone amplifier and Ayre QB-9 DSD DAC and it made a huge improvement. There is a lot more slam and punch but at the same time everything sounds smoother and less edgy. Much more organic and natural sounding. I can listen even louder than before with less fatigue. The bass is much improved. This was a BIG step up from the stock cords and I would say it was on par with changing a component.
