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December 12, 2019, 06:03:06 AM

Author Topic: SII with output tubes other than 2A3 or 45?  (Read 265 times)

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Offline Deke609

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SII with output tubes other than 2A3 or 45?
« on: April 28, 2019, 06:40:53 PM »
I just came across this tantalizing remark from PJ from a couple of years back:

Quote
Incidentally, I originally designed it to have some other output stage options, not just the 45. It's not clear which of them we might support, at what level of support. So I won't say more just yet.

@PJ: As I am sure others would, I'd very much like to hear more about the other output stage options.


Derek
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Roon Intel NUC ->  Yggdrasil DAC -> BeePre (w/ BeeQuiet and EML 300B)  -> Kaiju (w/ DCFil and EML 300B) or Stereomour II (2A3 [EML Mesh] and 45 Conversion [EML 45B])  -> Audeze LCD4

Online Paul Birkeland

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Re: SII with output tubes other than 2A3 or 45?
« Reply #1 on: April 28, 2019, 07:16:33 PM »
There are some other indirectly heated tube types that could be made to work in a Stereomour II, but I wouldn't expect them to be particularly strong performers sonically.

Maybe the RE604.
Paul "PB" Birkeland

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Offline Paul Joppa

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Re: SII with output tubes other than 2A3 or 45?
« Reply #2 on: April 28, 2019, 08:33:37 PM »
Sorry to have been unclear - I was not thinking of other tubes. Work progresses, can't really say more just yet.
Paul Joppa

Offline Deke609

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Re: SII with output tubes other than 2A3 or 45?
« Reply #3 on: April 29, 2019, 04:38:50 AM »
Thanks PB and PJ.

@PJ: a different output stage circuit for the 2A3 would be a cool experiment. I'm sure there's are more than a few others on this forum who would enjoy playing around with a different output stage configuration.  Something to look forward to!
Derek
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Roon Intel NUC ->  Yggdrasil DAC -> BeePre (w/ BeeQuiet and EML 300B)  -> Kaiju (w/ DCFil and EML 300B) or Stereomour II (2A3 [EML Mesh] and 45 Conversion [EML 45B])  -> Audeze LCD4