Tube rolling in Yaqin Pacific Valve Tube Buffer


A Shuguang 6N1 is included with the tube buffer from the factory. It sounds pleasant. An Amperex 6dj8 orange globe A frame I tried, sounded surprisingly thin and the highs shrill. I can only guess that the buffer is "voiced" for the supplied Shuguang 6N1 tube and NOS tubes therefore don't sound as one would expect.
I read that owners of Yaqin & Pacific Valve tube buffers have bee using JAN Philip green label 6922.
Does anybody have any other experience with tube upgrades for these tube buffers?
Thanks.
umn
try 5654 tubes or mullard ef95 or 6ak5.i have had excellent results with all of those however i recomend getting russian american and tung sol [which can be found esaliy on ebay or anywhere] is pretty warm very warm to soft for me but when the supplied tubes break in 100 hours or so they dont sound bad even for the price! dont cry because the miracle dosent happen for 150$ LOL!!! great product.
I'm currently using Western Electric 6AK5 1940'S with great results, great improvement over stock chinese tubes. The unit with the tube upgrade alone sounds more cohesive with smoother top end. Consider doing some mods, it will transform this buffer. I have have replaced the output caps to Mundorf M-CAP Supreme Silver/Oil 1uf and removed the input capacitors now wired directly.
I own the single tube version of the Yaqin and was one of the early advocates of the JAN6922 and it does work quite well. That said I have moved on to the Russian 6N1P with even better results. Cleaner mids, tighter bass and equal highs.
Incidentally the tube socket on my Yaqin is labeled with numerous tubes that can be used and the 6N1, 6922, and 6DJ8 are all included. Currently my buffer is in use between a Cayin MT12A amp and Denon multi format DVD/CD player to remove/smooth some of the harshness from the output and does so quite well.
I have heard many other people complaining abot the 6d orange so I think its just that tube.Try any 6922 or a JJ works just fine.