Hello, I've been watching your website for months now, Thanks for all the useful information guys. However I would like to ask, Why don't you guys publish SNR measurements in both "headphone amplifier" and "DAC"?
That's usually published in dBV/dBU or just uVrms. (0 dBFS works since you guys spec the output voltage at 0 dBFS/max output voltage).
The plain noise floor really doesn't help much, for example with a well measured SNR (with a reference) you can calculate if you're going to hear hiss with any pair of headphones by checking their required voltage(Or power) to reach a "X" SPL.
This can't be done with the plain noise floor, since SNR is equal to the sum of all the noise floor. And I'm not very sure of how to calculate SNR from noise floor.
Hopefully this image helps:
Finally, sorry if this post shouldn't go here.