I have not received any reply from Acousense for 2 months, so it seems these things are not needed for me

I just tried a simple and straightforward thing: passed several tracks of various instruments via pure DA AD Forssell chain.

And then listened to the original and "processed" tracks. It was absolutely impossible to tell which is which during many repeated blind switching tests - in all cases.

So I think there is nothing to worry about or to think about something else. These converters obviously do exactly what a converter is supposed to do: to perfectly convert the original sound to analog or digital domain.

This is what a converter is supposed to do.

To change or "improve" the sound - the converters are not doing their job but they smuggle additional job there that other devices should do).

By that I think I stop looking for "better" converters because no better converters could exist. If something converts the source exactly, something else cannot convert the source "more exactly"

If I want to change or improve the sound, there are another devices for that.