09-05-14: Stevecham
It's the stylus/cartridge/arm/turntable combination that is rejecting the tics and
pops, not the phono stage.
That's where I was starting from too, but I posed the question because the before
and after signal chains had the same turntable, same arm, same cartridge, same
tracking force, same VTA, same anti-skate setting. The only difference was
swapping out an op-amp/tube buffered phono preamp for an all-tube hand-
wired MAGI Phonomenal preamp.
Through the MAGI the mungy pressing noise was gone. In the link provided by
Almarg, Ralph of Atma-Sphere explains why this could be so. I could see where
passive EQ would be quieter than active. And the MAGI has an all-tube gain stage
vs <$1 op-amps in the previous phono stage.