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Accession with balanced output

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Aussie Mick View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Aussie Mick Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jun 2019 at 12:26pm
that’s exactly the kind of information I was after!
Rega RP8/Ortofon 2M Black/Rega Apheta 2 - Reflex M/Elevator EXP - C.E.C. TL5 CD Transport - MacBook Pro/Roon - Majestic DAC - Solo ULDE (Focal Elear) - Proprius - PMC Twenty5.22
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Graham Slee View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Graham Slee Quote  Post ReplyReply Direct Link To This Post Posted: 05 Jun 2019 at 12:47pm
Single ended inputs are generally (after switching) into non-inverting op-amps to which there are complicated distortions, too much to explain in a short reply so I won't.

Balanced requires an inverting stage to one leg to invert its phase, and an inverting stage has one less distortion to worry about (common mode). But it still has a non-inverting input for the other leg.

I don't know if it's this difference in distortion people can hear, because it would seem there are distortion mechanisms people can hear, even if measurements suggest they're too low to hear.

But I find an inverting stage often sounds better to my ears, but then again, a single transistor stage as it was before the op-amp, is inverting, so it could simply be a 'nostalgic' difference I'm sensitive to.

Going back to the second paragraph above, I found a way to make both legs use inverting inputs and use that in the Proprius unbalance circuit.
Not simple enough for Google-Bot to understand...
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