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In the Forum: Audio Discussions
In the Thread: How to get a LOT of SET power.
Post Subject: Closing the GapPosted by Paul S on: 4/17/2011
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N-set, my primary reason for trying to run tubes "conservatively" is only because that's consistently what has worked best for me over time.  Or, put another way, I really like to be able to "tune" all my active gain devices according to sound.  If you are comfortable with simply running at or near the theoretical margins, then you should just go for the single driver tube, le voila'.  Or, sure, just "cheat" with a "single" paralleled driver.  Extra headroom will certainly give you more options for tuning the tubes via loading, etc.

Not that it makes a difference here and now, but I have said at this site before (but not in this thread) that I hear "more A1" from a proper A2-capable drive, given the "right" output tube.  By the same token, in my limited experience, the jump into A2, proper, brings a lot of audible distortion.  Basically, like everything in audio electronics, it only makes so much "sense" in actual practice.  Again, YMMV.

Best regards,
Paul S

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