In my digital rig, while CSLS is not 100% perfect, but very close to. I wish to have a bit more tonal density or weight in the music.
I’d give consideration to trying the Lanlai 101D as @sns recommended due to their fuller tone/body compared to the Psvane W.E Replica. If that doesn’t provide what you seek then you may just prefer a 6SN7 line stage. The 101D is what it is, pure, organic and honest presentation. The 6SN7 could be relatively speaking more of a bigger tone tube. I’ve read very positive comments about the Don Sachs line stage.
I absolutely love the very natural engaging character of the 101D and its minimal editorializing. The Psvane W.E Replica is an excellent fit for my audio system. But that’s me and you have choose what’s right for your specific preference.
Charles