Best Sounding Passive Preamp

Slowhand, if I might intrude, thanks in advance:

M Brown, I own the SYS. Currently use it with a Dynaco ST-70. Have not compared it to my Jolida Fusion all tube pre in my primary system.  Also own the Schiit Valhalla all tube headphone amp. Would like to know what you think of this new Schiit passive/tube active.

Michael, thanks for the info. Hope to hear that Schiit takes care of you.  No sound either passive or active? 

Glad you got things worked out and are happy with results. They make some really good Schiit for the money in my experience.