I have the Harmony DAC and the PS Audio DirectStream DAC Mk.1.
I bought the DSD before the latest DSD Mk.2 came out. After reading reviews of both and also reviews of the DSD Mk.1 after it was modded compared to the newer Mk.2, I had Rick mod mine and added the LPS add on.
With all the discussions of how the Harmony compares to other DACs, a refurbished DSD Mk.1 can be purchased for around $2000 with 1 year warranty.
The Laiv Harmony is $2700 with a 3 year warranty.
The DSD is FPGA based and the Harmony is a R2R. Both are great sounding.
Going up in price, the T+A DAC200 ($7000) and the Mola Mola Tambaqui ($13000) are better sounding, more analytical, however some report they are not as natural sounding. Opinions are like rectums. Everyone has one.
The soundstage of the DSD is larger than the Harmony DAC.
I am keeping both, and I listen to both. They both sound natural.
My system:
Moon by Simaudio 700i integrated amp
Vandersteen Treo CT speakers
Custom built Roon Server
PS Audio AirLens streamer
PS Audio DirectStream DAC mk.1, modded, w/APS upgrades and LPS
Nordost power and interconnect cables
Fidelium speaker cables