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In Reply to: RE: Siemens e288cc in a Cary sli-80 posted by johntoste on June 25, 2020 at 11:21:02
I have not tried them, but be sure you have enough vertical clearance for them. They're ~1/2 inch taller than your typical 6922/6DJ8.
Also, be aware they tend to be microphonic. Out of curiosity, why the 8223 and not the 7308? 7308 is much more available, cheaper and more than one manufacturer to pick from. AFAIK, Siemens is the only one to make the E288CC/8223.
Follow Ups:
Plenty of room on the Cary.
I'm currently using the Amperex 7308 and it's great. Every other tube in the amp is Sophia Electric blue glass. They're also great.
The system in general is slightly on the warm/sweet side of neutral. The E288cc was suggested to me as a more transparent alternative to the Amperex. I thought I'd try a "roll" in that sonic direction.
My main concern is that a search of AA found someone claiming that the extra current draw could fry a transformer. I was hoping that someone who tried this tube in the SLI-80 could tell me of their experience.
The Siemens 7308 may be the tube for you. IME, it's more extended on both ends of the frequency range than the Amperex. But it lacks some of the midrange magic the Amperex possesses. That may sound like a bad thing, however these differences result in a more lively, slightly brighter, sharper presentation than the Amperex.
Thanks for the recommendation. I think you're on to something. Right now I'm drowning in mid-range magic.
What are you using in the 6SN7 spot?
Never mind. You already said the Sophia. Im not familiar with the sound of the Sophia.Another idea ... a Sylvania VT231 in the 6SN7 spot. Just spitballing
Edits: 06/25/20 06/25/20
I personally don't like the Sylvania VT-231 with the SLI-80 - too thin, with excellent highs but exaggerated mid-bass.
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