best for 6sl7 and 6sn7 tube nos?


i have northren electric 6sl7 , i need also invite 6sn7 3pcs , what you think is the best preamp in both entrey 6sn7 & 6sl7 
tnx you foxes
israrami
Andy at Vintage Tube Services is my go 2 expert…..and he has killer test gear…
      Agreed!
+1 @lewm

good thing about 6sn7 and sl7 is there are many many makes and types, old and new, from many different places over the world, all with their own sound - but most sound quite good, some really excellent

lots of choices, tube roller’s paradise!
When I needed some very quiet 6sl7 tubes for a phono preamp Andy at Vintage Tube Services recommended Sylvania.  He set me up with a NOS pair that were excellent.  I sold the phono pre shortly after I received the tubes as I acquired a different pre with phono built in but still have those tubes.  Also have the RCA 5691 red base tubes.  Sylvania a little more air while the RCA had a little more meat on the bones…