I have an old Nakamichi cassette deck. It doesn’t come close to touching a DSD128 recording.Just curious- which deck and when was the last time it was serviced?
I used to maintain a pair of Nak decks for making cassettes for my truck; haven't done that in years and still have the decks knocking about. Both need a serious amount of service (essentially all new rubber parts and some new parts sprinkled through the electronics) in order to come close to their original spec.