Which preamp to go with pass labs x150.8

Okay, my .02.

While my equipment is different it might be revelant, I currently have a Pass 260.8 and run it wilth an ARC 5se. Before that I also used a ARC 28se (which is currently running with a ML 23.5)

Have always liked the sq of the mix of tubes and ss and had tried a number of tube and ss pre with these amps until I got to my current rigs. Not even considering a upgrade of either, but you never know when the bug will bite... 

Audio-gd Vacuum HE1 XLR Tube Preamplifier Review - HomeTheaterHifi.com           For the money...This Monster Tubed pre could well be the most musical pre under 10K

+2 for Aric Audio. As I’m typing,I’m listening to Aric’s Motherlode II,and a First Watt J2.  I find the combination pure magic. 

I have a PS Audio BHK pre amp that I sometimes use with my  X250 and some times I use my BHK 250 amp both sound fantastic the tubs in the BHK sound a little warmer to my ears when I am listening to Jazz, All so in my opinion both of these companies offer the best in the  business service after the sale.

@mbmi - Have you heard the Audio-gd and what preamps are you making your statement against? Also, the reviewer offers zero context as to what against that preamp is the best ever he's heard