What's the best 6NS7 tube you have tried in your Atma-Sphere MP-3 preamp?

@vthokie83 I would definitely like to hear how the Ray Select tubes are as they are about 1/2 or so of the Reserve. I might replace power tubes with Select tubes if they are still better than most of what is out there. 

dz13,

I'll get a pair ordered, but unfortunately won't be able to test them for a few months at the earliest......much of my tube gear is packed away, waiting for my listening room to be completed

I remember in my Atma Sphere amps this is what I concluded.

1. Melz 6SN7

2. RCA red base VT 231

3 Sylvania 6sn7 chrome dome

4 RCA black plate

5.sophia electric 6sn7

6 Chinese shuguang 6sn7

Have not tried any others.  The Ken Rads get great reviews.  I always wanted to try those...