@pbecker128 Here’s an interesting thread that includes the very experienced and knowledgeable guys who designed it that you might find interesting — I sure did. It’s impressive the lengths they went to in both the design and choosing the parts they did and why. It just exudes bespoke quality and end-game preamp level to me.
https://forum.audiogon.com/discussions/spatial-audio-raven-preamp?highlight=Spatial%2BRaven%2B