What tube pre-amps pair well with Pass amps?

+2 for the Aric Audio preamps! @laaudionut, @mesch 

Since we are on the topic of the Pass Labs XA25, I am now running a souped up Aric Audio Special 6SN7 preamp with mine, replacing the already excellent Backert Labs Rhumba preamp, which I used for 3 years.  This was Aric’s own preamp that he used to voice his latest Motherlode II preamp, and it retains most of the Motherlode’s sonic characteristics.  It’s an amazing match with my XA25. 

@mesch

I got these details from Aric: the upgraded "Special" has: "Miflex PIO capacitors, all film cap power supply, heavy choke filtering, damper plates for the 6SN7s and features the Vishay resistors as well, but it has the standard iron-core transformers and ALPS remote volume control."

+1 @jake18aa
I felt the same when I matched up my Pass XA25 with an Aric Audio preamp! This combination makes a wonderfully musical, holographic, and natural presentation of the music that I find extremely satisfying!