The Freya+ is tough to beat both sonically and flexibility wise. There are some forums that post of success in upgrading parts in the Freya+.
Upgrading from the Schiit Freya+
I have a Schiit Freya+ that I really love. I cant complain about it, I have upgraded the gain side to a great pair of RCA JAN 5692's and the buffer side to PSVANE COSSOR 6SN7's. This is a great combo and really kicked the sound of the pre-amp to a peautiful place. I have been upgrading me gear to end-stage type gear. My turntable and amps are amazing. I am trying to figure out if I will hear much of a difference if I upgrade my pre from the Schiit to something like a Sonic Frontiers Line 2 or another tube pre in the $3k-$4k range, or will the improvements be so minor that it may not be worth te money. Given that I have put a little money into tubes I am just not sure how much of an improvement things would be compared to what I have now.
I will say that I would like a tube pre with at least two xle ins and one XLR out. Any thoughts on a step up from the Schiit in my price range or is it just not worth it.