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Original Message
RE: would like to see 'choir efect' measured...
Posted by zarniwoop on December 18, 2016 at 14:41:41:
I don't think it is a listenable effect. The paralleled sections act in unison in practice. The electrons don't know anything and the physical separation between the two devices is negligible as far as they're concerned.
I guess who would even bother to attempt to measure a potential effect? The time based delay wouldn't even be measurable on their equipment. If there is some kind of femtosecond delay or interaction is that even something to be concerned with for audio signals?
I'd love to see some measurements on a paralleled 6SU7 vs a mismatched paralleled 6SL7 and see if there is anything that shows an unexpected result. I'd imagine the linearity would be affected by one section running at a significantly lower current than the other, but any temporal effects should be insignificant.