Hello,
I would call the Tube Depot or The Tube Store and ask them as they really know their tubes and their sound characteristics in and out. (www.tubestore.com or www.tubedepot.com) Personally, from experience and working at Cary Audio in 2004, I like EH brand in general but also the JJ's too as they have a lighter sound whereas the EH's overall tend to have a lot of low end grunt. Sound preferences of course factors in heavily with tubes, as does their production run, tolerances, and the age of them, etc. I also like to substitute the 6DJ8 for a 6922 as Audio Research does whereas Conrad Johnson loves 6922's for decades. Perhaps call CJ in Virginia. 6DJ8 is a more direct and driving/leaner sounding tube whereas the 6922 is more melodious and smooth and rich.
I would call the Tube Depot or The Tube Store and ask them as they really know their tubes and their sound characteristics in and out. (www.tubestore.com or www.tubedepot.com) Personally, from experience and working at Cary Audio in 2004, I like EH brand in general but also the JJ's too as they have a lighter sound whereas the EH's overall tend to have a lot of low end grunt. Sound preferences of course factors in heavily with tubes, as does their production run, tolerances, and the age of them, etc. I also like to substitute the 6DJ8 for a 6922 as Audio Research does whereas Conrad Johnson loves 6922's for decades. Perhaps call CJ in Virginia. 6DJ8 is a more direct and driving/leaner sounding tube whereas the 6922 is more melodious and smooth and rich.