Anyone running a tube preamp with a Pass XA25?

I know this is an older thread but I am also an XA-25 owner and considering some different options for preampfification. I have a Schiit Freya + with stock tubes. I like the combination but I have a nagging suspicion I’m not maxing out the potential of the pass. However I want to keep costs realistic and avoid spending more on the pre than the power amp. Remote controls are important too. 
 

Any recommendations on matching/synergy? So far contenders are: 

Rogue RH5, RP5

Vintage ARC or Conrad Johnson tube pre 

Luminous Axiom II passive pre 

Appreciate any first hand experience and recommendations! 

@knik thank you for the response. I have had my eyes on a Cary for a while as a possibility. I currently have the Schiit Freya and I’m thinking although it’s nice and adds some flavors (passive, gain stage and tube) it doesn’t really sound like tubes and I’m thinking I could do better. I’ll keep an eye out for a used Cary! Thanks a lot