@steve59 I have a customer that uses a full 3000 HV stack (MP, P, A, and PS) with KEF Blades and he is very, very happy with the electronics matching.
Thyname has a good suggestion to use the PA 3100 HV with a separate DAC (consider the T+@ DAC 200 to go with it). That said, the separates are for sure better.
@thyname I did get some details about the PSD, but I've been asked not to share too deeply until the product is released. That said, I can confide that the quality differences do go beyond the ares I provided above, and there are differences all in the preamp section, power supply, volume control and all. Both are still good values for their price points.
I will iterate that the SDV is the best purchase I ever made in my own system. I already owned the P 3000 HV, which was the best preamp I ever owned prior to the SDV. Combined with a world class DAC in a single unit, and a quality streamer and network audio device, it is a worthy investment for combined endgame performance. The DAC 200 is also exceptional for its price point, and I've preferred it to DACs double its cost. I'm certain the PSD, while not inexpensive, will also strike a great balance between cost and performance.