I rolled the stock 6922's in the Cayin to Sovtek's and like the sound slightly better. IOW worth the $150/quad investment. There's others that might be even better for more $, but don't feel the need to invest at this time. maybe in 2 yrs from now I'll try another set.
Does tube rolling with regard to CDP mean...
Bringing more color into the sound reproduction? If that is the case then tube rolling would be: changing tubes until you find the right coloration. But isn't it true that the live sound is what we are after? In that case tube rolling should mean: changing of tubes until the sound resembles live music.
Chris
Chris