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.
skipf
Go over to Audiocircle.com and check out electronic engineer Roger Modjeski's exposition about 6DJ8/6922 differences in the Music Reference section of postings. Basically, there is not any substantive difference. Depending on manufacturing tolerances, a batch of tubes can be labeled either 6DJ8 or 6922. Aural differences exist within this family of tubes of course, but don't focus on 6922/6dj8 as a factor of sonic differentiation.
Hi already have a Carver SDa490t in mint condition, I buy it in a dealer new one in 1992. Well I just fin a pair of Philips E88CC SQ special quality, not to expensive, with this tubes your Carver run magical ok, deep bass, excelents mids and extended highs, is just a dream, I put some acoustic parts inside the Carver and a nice foots, please put some rubbers on the tubes.
I run a Njoeb Toeb CD4000 too, but with this tubes the Carver it's much much better

I 2nd Amperex Philips E88CC SQ special quality. It ended my tube rolling and all I use in my Sonic Frontier components.
I have Amperex 6DJ8, circa August, 1962 and they are magnificent...using them in an LSA Statement Integrated Amp, the preamp section. WOW, what a tube this is...better than Telefunken and many others. Pricing is not for the faint hearted though.
Does anyone, HAS anyone cryo'd these??

Larry