Ever wanted to know, what your phono cartridge sounds like dead flat??

Tough crowd!  🤨

Well if I can have it, I'll take TWO...

Regards

Interesting! He says it can get the frequency response very flat, at least relative to the test record.  But then he says it can't help with the channel separation being no better than 30db. I wonder! The channel separation issue, if I understand it, has to do with the movement of the needle for each channel at a 90 degree angle (or whatever angle it is) relative to the other channel. Each channel inherently ends up coming in to the other channel, attenuated and reversed in polarity due to the mechanical arrangement. Seems to me this is something dsp could potentially address to some degree.

Each channel inherently ends up coming in to the other channel, attenuated and reversed in polarity due to the mechanical arrangement. Seems to me this is something dsp could potentially address to some degree.

It says it can also fix the "cross talk". You know when you hear very quietly in the background the next phrase as the record does the next rotation, it’s the stylus picking up the next rotation groove through the vinyl V wall before it gets to it’s proper groove. (I think they call it adjacent groove talk)
As well as giving a "flat frequency" response.
But to me the "channel separation" is a more difficult one, as I don’t think the dsp knows what’s the reference is for this to give it better separation.

Cheers George

Who cares?  It's not designed to run "flat."  Just designed to run "flat" against the RIAA EQ plot.  It doesn't matter how it sounds in ANY OTHER configuration.