The answer is really difficult to say for sure. Mismatched equipment can happen regardless of purity and some combinations just flat out sound bad. The good news is you can play around and find out for yourself - since most of us color our solutions on what sounds best to us there is rarely a holy grail.

I have a very pleasant sound with SS serving as a pre, however it does seem somewhat brighter than the tube- tube set ups I have heard. The interesting part is I prefer that brighter sound with the blending smoothness - to each their own...