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Single Ended Triodes (SETs), the ultimate tube lovers dream.

RE: Drawing the line

"By absolute phase I indeed meant swapping polarity of both channels at the same time and not one channel in relation to the other."

OK, good...we are on the same wavelength (so to speak)!

I think, though, that the percentage change in air pressure around the quiescent 1 atmosphere is still absolutely tiny, even for loud low-frequency sounds.

But the asymmetry of the loudspeaker response, together with the asymmetry of the SET amplifier response (because of its predominant 2nd harmonic distortion) would certainly, I imagine, lead to the possibility of either addition, or subtraction, of the two asymmetries, depending on the polarity of the connection to the speaker. I'd put my money on that, rather than asymmetry in the acoustic propagation of the air wave itself.

Chris


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