[PeterMusic]

I agree with Puma Cat that clean power is essential. My Nordost QKore and QBase grounding system with a single Frey 2 cable into the wall were pricey, but a huge improvement over stock power. Interestingly, once these 3 components were installed, I could not hear additional benefit from upgrading the stock power cables into the QBase.

But as I noted in my last post--it's critical to demo any cable change for a few days at home. Some cable upgrades will help a lot, some will hurt, some will be neutral.