disagree with post about tube break in.....IMO there's nothing to break in....tubes only start deteriorating the moment you use them until they eventually fail. For NOS 6DJ8 I liked orange label Holland Amperex.....full bodied sound with good detail. Cheaper alternative is cryo EH 6922, but thats not a 6DJ8 but is replacement like the 7308.
Best 6DJ8 tubes?
I have a Carver C-19 pre and SDA/490t cd, both use 6DJ8 tubes. Both units were recently serviced and had Sovtek tubes installed. The tubes in the cd player only have about 10 hrs on them, but the sound isn't nearly as warm as it was before replacing the stock tubes. I was wondering if anyone could recommend the best brand I could use, if 6922's would improve the sound, and the standard burn in time for the new tubes.