I opted to have my DSD MKI upgraded by JK Richards with his custom designed nickel transformers along with the VOCM caps. I couldn’t be happier with the outcome. The DAC is in an entirely different League now, so much more refined and musical. Highly recommended if you have a DSD MKI, and don’t want to drop the necessary coin to upgrade to the Mk II.
Link to thread on upgrading your DSD MKI or MkII.
https://forum.audiogon.com/discussions/modding-the-ps-audio-directstream-dac-mk1-and-mk2