I have had my Wa6 2nd Gen for a couple of years and I am very happy with it. I think it would be time to try some tube rolling and not having much experience with this, I was wondering if I could get some suggestions. My music preference is typically classical and various laid back/easy listening but I am looking to build a system with a bit more "umph" for the heavier music I listen to. My gear is as follows. Wa6 2nd Gen Sophia Princess 6GL7 with adapters Cambridge Audio Dacmagic 100 Q701 Lenovo P50 Thanks for reading.