6H23 NOS Russian Military tubes. Affordable and sound very good. Better all around than EH or Sovtek. Smoother top, more natural, better soundstage.
I use Mullard made by Amperex in Holland NOS 6922. Very nice sound. They're not as expensive as some other NOS tubes. Got them from Brent Jessee Recording Supplies.
There is so much information on tubes, it can be confusing. Essentially, tubes are like cables. You have to try in your own rig. If they work good in someone's system, this is no indication they will work for you. So buy an try. This is the best way.
I use Mullard made by Amperex in Holland NOS 6922. Very nice sound. They're not as expensive as some other NOS tubes. Got them from Brent Jessee Recording Supplies.
There is so much information on tubes, it can be confusing. Essentially, tubes are like cables. You have to try in your own rig. If they work good in someone's system, this is no indication they will work for you. So buy an try. This is the best way.