Tube Pre-amp Suggestions.

I have a Prima Luna Evo 400 that feeds my  Brysto 4b3 SS amp that I feel really made a big difference in SQ over the SS Parasound pre I had been using. It’s my first tube preamp so I can’t see how necessarily compared to anything else, I got my system to the point where I don’t really have any desire to make any changes and Just want to listen to it as it made all sorts of music more enjoyable. The 400 is over what you want and o spend, but you might want to listen to or consider the 300 or even the 200 which are more reasonably priced.