No, no back to the future for me I briefly stepped my toes into Delta Sigma type convertors (eg: 1bit,bitstream,single bit, Sabre ect) they're all Delta Sigma based.
But they couldn't come close to properly implemented R2R Multibit for Redbook replay sound quality.
And I have no interest in DSD, Hi-rez or SACD it does nothing for me, maybe because it has to go through a Delta Sigma type dac, I don't know, it just has no jump factor or midrange warmth, it sweet enough but just a bit of a yawn.
They "the real hiend guys" not just the ones that jumped on the DSD Hi Rez bandwagon that need to use Delta Sigma type dacs. Will all be going back to R2R Ladder Multibit one day as it is "the bit perfect process", and sounds better on Redbook than Delta Sigma.
These are just some of the very best around at the moment that have shunned Delta Sigma and gone back and used R2R Multibit, either discrete or chip. And the list grows all the time.
Trinity Dac
Ypsilon Cdt-100
Phasure
MSB Platinum
Total Dac
Audial (Peja Rodgic)
AMR top dac and cdp (Thorsten Loschec)
Emm labs
Exasound
Reimyo
CH precision
Cheers George