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In Reply to: RE: Six 6922/E88CC/6H23 tubes compared posted by Triode_Kingdom on June 21, 2021 at 23:55:27
Which is why I listed associated equipment in my OP.
All my up & downstream equipment is what many would call "analytic" in character. That's true of the Sonic Frontiers Line 1 as well -- at least for tube preamp.
Still, the relative characters of the tubes may be relevant though preference is likely to depend on personal inclinations as well as circuit context as point out.
Dmitri Shostakovich
Follow Ups:
My ARC preamp uses 6dj8/6992 in the phono section. I have tried a lot (all NOS see photo). The best I ever had was the Amperex pinch waist, that was an amazing tube and I never felt like taking it out. I played it till it was toast. Since then I have rolled many different Amperex, but always found them somewhat "fat" in the middle, like the OP. I couldn't live with it. I went though a Siemens phase, I like them a lot still, but they are a little to "thin" in the middle, great extension, not as holographic. Same with the Telefunken 6992.
Here's the thing. I have found that the humble 6DJ8 often sounds better than the voltage updated gold pin 6922 and 7308. The Telefunken 6DJ8 is a great tube in my ARC, less dry and more holographic than the more renowned gold pin 6922. The Siemens 6DJ8 is also a very good sounding tube. They seem to last longer too, the Tele 6DJ8 has been my main tube for years now, still sounds great and tests perfect.
None of them are perfect, they each have their strengths, that's why you need a stash to roll!
Edits: 06/30/21 06/30/21
Interesting the you found most Amperex to be "fat" in the midrange -- certainly what I found to be the case.A couple of days ago I dropped of my SF Line 1 at Parts ConneXion for a full 'SE+" upgrade. Previous to the I had abandoned the Reflectors and was using the JJ E88CC/6922 Gold Pins that seem to me to give relatively more smoothing and holography without the bloated midrange.
Dmitri Shostakovich
Edits: 07/01/21
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