Is there a Nelson Pass amp with servo loop?

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Would not every balanced design run without an exit-cap?
"Capacitors in the signal path" are no problem regarding sound. Use little ones, NO big MKP or other big stuff.
The 1. advantage of balanced designs is the outcrossing of psu-"fluctuations": use ONE psu; do not add psu-"fluktuations" per add psu's;-)
The big problem are many psu's and many parts and many gain-stages and a lot of feedback-loops ... and complementary-transes-designs;-)
And poor sources and (multiway-)speakers;-)

PassDiy
Ralf Metzger - Aleph X
High Power Aleph-X Monoblock – Garbz Electronics
ALEPH-X - Pass Labs Clone Class-A amplifier PCB & schematic
 
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