On the Mobile Fidelity website, the source of the LP version is disclosed (in keeping with the lawsuit settlement):
"1/4” / 15 IPS analog copy to DSD 256 to analog console ...
I don't know what Tower did with their set but the back of the EMI box (pictured on Amazon UK) says - "Remastered in 192kHz/24-bit from original tapes by Art & Son |Studio in ...
This is one of Nina's best albums and one that is well worthy of this fabulous Analogue Production's DSD mastering for SACD.
The album and reproduction is superb and if one ...
Quite remarkable how good this sounds - Its an album recorded in 1974 after all.
Rob LoVerde's mastering seems to have modernized the presentation somewhat and the album ...