Laynes,
I have not ventured into rolling, neither with the EVO 400 nor the Lampizator Atlantic DAC. I honestly can't think of one thing I'd change with the Lampi. With my system and ear, it still remains my favored DAC. Along with the Daedalus speakers, I have no curiosity to vary. I tried a bunch of DACs, and none had quite the magic of the Lampi, so leaving it alone. Thanks for the specific tube suggestions for the EVO. I would love to see that effect and do plan on exploring if I keep it, which I may do, and just add another amplifier for a different combo.