"Phil Allison" ha scritto nel messaggio
u...
At 25 Hz it will be only 0.3 mV - due to the RIAA recording curve.

A phono preamp needs at least 1000 times gain at low frequencies -
even when no NFB is used - much more if it is.

I said i'm a rookie...i forgot to consider the 20dB loss of the RIAA
network... )