Modwright LS100 vs The followings

Hi @thaluza
"Regarding the tonal qualities of the CSLS, my initial impression of the CSLS was similar to the OP’s. However, I found a dac and cables that I like that tailored the sound more to my liking. So maybe this is a compliment for the CSLS. "

Yep!!! This very distinction was discussed earlier in the thread. I expressed that the CSLS is chameleon " regarding its sonic signature. So it definitely can be described as lean/cool Or rich/warm depending on the other audio system components. Very organic character paired with my Yamamoto YDA-01 DAC.
Charles

@Thaluza, 
I do feel the innate differences between the 101D and 6SN7 are at play as factors. Very different tubes for sure.
Charles 

Haven’t ask a very important question, which 101D you are using?  

Hi@gte357s,
Good question that I should have addressed in prior comments. I purchased my CSLS MK II new in 2009 and it came with the Shuguang 101d. This is a good sounding tube at very reasonable cost and is also reliable.

I switched to the Psvane W.E. Replica 101D in 2014. This is a "great" sounding tube.you can hear improvement across the sonic board/spectrum compared to the standard Shuguang 101D. This premium level Psvane is more expensive but IMHO worth the additional cost.

Good versus great , even more air, openness and inner detail and nuance. The Psvane W.E Replica has a fuller more meat on the bone presentation (Relatively speaking) yet remains remarkably transparent and more dynamic. I’ve had them so long I consider them my "standard 101D
Charles