tube rolling with Schiit Freya +


Just purchase  a Schiit Freya + preamp and would like do some tube rolling. The preamp is connected to  pair of  Passlabs X260.8. I really like the sound but want to experiment with different variants of the 6SN7 tubes.

Schiit customer service sent me an overview of different tubes with some descriptions of their characteristics which helps but I thought this forum of any  users based on actual  experience would also help. I'm looking for a fatter ( more tubey) sound with emphasis on the midrange

Thank

O

oglethorpe
No help here, sorry, as I probably intend to buy the Freya+ soon. But I have a question for you, or anyone else...

Have you had the Freya+ long enough for the "run in"? SA customer service says that they run in the unit for 48 hrs before they ship it out. But in my experience, that’s not near enough. That kinds invalidates their 15 day "try it before you by it" return policy..

Comments about the Freya or burn in? Also, can anyone recommend an alternative retailer with a more generously appropriate return policy?

Thanks!
@mkh1099 
They told me the same thing and to be honest I never really heard a difference from any of my Schiit stuff after hundreds of hours of play time vs right out of the box. 

I replaced the stock tubes to their recommended Tung Sol "upgrade" and then to a matched set of PSVane tubes. The latter yielded a noticeable difference in the sound that I was looking for and still am using to date.

BTW I have a Freya (older version) and a pair of the Aegir amps in mono block operation to a pair of 8" full range.