The tall bottle Sylvania 6Sn7GTB is a better sounding tube than the short (standard) bottle version. Not quite as good as the more expensive "bad boy" Sylvanias, but very close.
SYLVANIA 6SN7 GTB tall bottle tubes and short bottle
What is the difference between SYLVANIA 6SN7 GTB tall bottle and short bottle tubes.
Using in a Rogue Metis preamp. Also what tubes do you recommend for the Metis?
System: Rega RP 6 w/ Exact cartridge and Fono Phono Preamp MM, Raga Apollo R CD,
Rouge Metis and Carver M-1.0t mk II opt 002 amp and Source Loudspeaker Technologies
7211 Reed Tower and Kimber cables.
Using in a Rogue Metis preamp. Also what tubes do you recommend for the Metis?
System: Rega RP 6 w/ Exact cartridge and Fono Phono Preamp MM, Raga Apollo R CD,
Rouge Metis and Carver M-1.0t mk II opt 002 amp and Source Loudspeaker Technologies
7211 Reed Tower and Kimber cables.