Yeah really nice clock indeed .... well done mr. Moffat !

Those crossover blibs are just at -104dB and at a frequency of around 17kHz (for this test tone).
Judging from the waveform I figure it may not be possible to improve this using forward correction, perhaps using signed magnitude.

What would interest me is the differences in jitter between 'cold', 'several hours' and 'mucho hours' as well as seeing if the 'blib' gets smaller when warmed up.
After all the accuracy of most components is temperature dependent.
I don't think any other aspects/measurements will change over time, unless they are related to the 'blibs', which I think is visible in the form of the relatively high frequency 'poles' in the upper part of the spectrum.
But why scrutinise measurable thresholds that may not be that audible ? Ah yes ... because we do want to know.

If it is temp dependency of one specific component, sticking a tiny regulated heater (resistor) on it may greatly shorten the long 'wait before use/magic apppears period' .
Wouldn't it be great if you could switch it on and in 5 mins would do 'the magic' (IF caused by actual warming up of certain components)

I totally get the 'available time' thing vs curiosity.

By now, some of you probably have noted the THD+N graph may not be the lowest ever seen. Designers are often faced with trade-offs for various reasons. I believe the Schiit design team has made trade-offs that result in best auditory experience over best measurements possible on all fronts. I have a colleague who gives a "13 dB miracle" demonstration showing that SNR isn't the best predictor of auditory experience. So THD+N may not be that influencial on the final sound while jitter may have a bigger effect.

Try measuring at -3db and -6db, ladder DACs tend to higher THD as you approach 0dBFS.

I dunno about the Prism, but according to the legend, THD+N was measured at -0.1 dBFS where 0 dBFS maps to 14.76 dBu (according to the script log). This is close to 4 Vrms which matches Schiit's balanced drive specs. Atomicbomb would have to confirm...

I'm a bit puzzled about the "Soundcard Outputs" control. It seems it's using WDM Microsoft Sound Mapper. Where these drivers used?

Wait, there are actual oven dacs? I thought people were joking...

Oh that makes more sense. I was picturing little dac saunas for a second there.