Who has switched from a PS Audio BHK Preamp to something else?

The AVM's look fantastic!!. I swapped the stock tubes with Gold Lions and hear quite an improvement. I'm quite pleased with the Gold Lions

@aberyclark I own the BHK in a second system and have played around with it a lot. In honesty, with the right tubes it can really come alive, and has a wide, deep, 3D soundstage that most other preamps don’t have.

I compared it against an Arc Ref 6 SE like others above, but I felt the ARC to be too “lit” and did not have the warm harmonics that the BHK makes possible. It was good in other ways, but not good enough to justify replacement. 
I also tried a Cary SLP-05 Ultimate, which retails for double the BHK, and the BHK easily bested it.

If Gold Lions are the best tubes you’ve tried in the BHK, you’re missing out. Did you know you can switch the current and voltage settings internally? With a proper adapter, you can use 6SN7s. My favorite is a pair of Sylvania VT-231 - really opened up the preamp in every dimension while adding dynamics and authority. There are many other great tubes, like Tungsram 7308 and Psvane T-II CV181.

Also, if you haven’t yet, try a Synergistic Research blue or orange fuse in the BHK. That makes as much or more of a difference than tube rolling.

I’ve since also purchased an Allnic L-3000 Mk 2. It, too, is an incredible preamp, but different. The Allnic is a tad bit more euphoric with the midrange bloom - it’s just gorgeous, but the soundstage isn’t as wide as the BHK. Still worth keeping at the price I got it for.

After investing in the fine tuning, the BHK isn’t going anywhere.

Everyone's points about not judging the merits of the BHK using the stock tubes are right on.  I should have mentioned that I optimized mine, for my system and tastes, with Amperex 7308's from the early '60's.  These were importantly better for me than the NOS Tungram 7DJ8's that BHK himself reportedly liked.  And every tube of the 10 different pairs I tried in the BHK were significantly better than the stock tubes.  You've got to try others, for sure.

Did you know you can switch the current and voltage settings internally? With a proper adapter, you can use 6SN7s. My favorite is a pair of Sylvania VT-231 - really opened up the preamp in every dimension while adding dynamics and authority.

Kinda crazy they don't advertise this more prominently (and just put the switch on the back).

@smodtactical  the Don Sachs is not better nor more revealing than the 6SE just different in presentation.  The 6SE is fantastic and very flexible but I am on a path to minimalization thus the DS.  I think this cycle repeats every 8 to 10 years.