2. amps-preamps
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best 6dj8 tubes for AR sp9mkII???

hi! I'm in the process of replaceing the old tubes from a
SP9mkII that I've bought second hand. I assume that both
are the same 6dj8, as the model is still readable only on the Red Dragon ones. Opinions about what replacement would be better and were to buy it would be highly appreciated.

jstones
vtvu
97 posts
 
Kevin Deal of Upscale Audio receommended a Sovtek NOS that were supposedly made in Russia in 1970's. See http://www.upscaleaudio.com/ for details. I bought a couple from him for my SP9 II and am happy with it. Much improved over the Philips JAN tubes I had.
gmorris
351 posts
 
I agree with Vtvu. I have used the Sovtek NOS 6922 (6H23) from Upscale in my ARC LS25 with stunning results. The actual designation for this tube is 6H23.
dacostab
84 posts
 
I recently bought a couple of Gold Aero Platinum Grade Gold Pin 7308's, made in Germany (probably by Siemens) from Stereo Unlimited is San Diego (619-223-8151) for $35 each. They sound really good in my SP9 MkII. You could also try Valvo 6DJ8's, if you can find them.
plato
1,543 posts
 
I'm with Dacostab on the recommendation for 7308s. To my ears, almost any type of 7308s have consistently outperformed 6DJ8s and the 6922s I have tried (including the 6922 Sovteks).
gmorris
351 posts
 
Plato: Did you use the 6H23 tubes? If not, please limit the scope of your comments.
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