I stand corrected.......
After using the DIY DAC for a week the Gumby went back into my system yesterday. I have made it a habbit to go back a step after some time and boy am I glad I did.
Now it is clear to my that the NOS is easy on the ears ONLY because it ommits a lot of details. The Gumby serves up so many details that your brain (and the rest of your system) is challenged. I now suspect that my digital source (old phillips cd player) is no where good enough to show the full potential of the Gumby.
I still like this DIY DAC a lot - but a DAC should not leave out that much information.
But Again the Gumby is worldclass in putting it all out there. Read a comment a while back: "Sometimes I think there are strangers in my house but it turns out to be new information in the music that I have never noticed before....."