Dear Ted and Elk,
Thank you very much for your kind, extensive and informative comments. I could not reply and thank you earlier, as I was driving my wife, a mother of three, with our children around, celebrating the Mother’s Day.
Indeed, I could have been too easily taken by a few Internet articles on the subject matter. I was particularly excited after taking some blind audio quiz on four short tracks pairs, each pair containing identical passage of music recorded with both A-440 and A-432, played back in, initially unknown, sequence. I consistently preferred segments corresponding to A-432 and the difference was audibly better to my ears, as played on my computer. I could not tell, if those tracks were not purposefully modified for a reason, albeit no indication, or link to another site with a commercial interest could be found. Nevertheless, a software allowing for the pitch adjustment, including freely downloadable implementations, can be found (e.g. https://www.432player.com/) and might allow for the experimentation.
My apology for a hasty suggestion of non-trivial modifications to the PSA Direct Stream DACs. Absolutely, feeding an appropriately modified digital stream to DS would be much more practical option. I might experiment further but, in the meantime, I will continue to enjoy music though my unit of DS DAC. On that occasion, Ted, let me thank you very much for creating such an outstanding piece of modern audio engineering gear!