A CD with a top DAC ( 32bits/384 khz.) and good overall design
outperforms any phono stage it does not matters the phono stage
price/pedigree ( including yours. ) in the bass " management " and this
is not because your unit or other units are not good designs because I
know your design is a good one but it’s because the differences between a
digital and LP recording technics.
Nah. I've heard the best digital out there. Sorry.
The recording microphones pick up all the music in stereo including the
bass range but for the LP overall limitations the low bass comes not in
stereo as when in the recording but in mono way when in digital comes as
what were pick up by those recording session microphones, digital has
no limitations about.
This statement is false. I run an LP mastering operation (Scully lathe, Westerex 3D cutterhead, modified Westerex 1700 electronics). It is true that out of phase bass is problematic for the LP (which only occurs in pop recordings; if recorded with two mics it does not happen). Problematic is one thing- impossible is another!
If you are lazy, you use the bass processing (and then the bass might be mono for a few milliseconds), but so far we've yet to need it. All you have to do is spend some time with the project (making tests of the problem area) to sort out how to master it (vary the groove depth and amplitude to see what works- a 3 db change is a significant change in modulation...) so you don't have to use processing even if the bass is out of phase.
My recommendation is to get an LP mastering lathe and find out for yourself- or listen to someone that has already gone down that path.