"Finally, I will try the ODSE to Criterion to Veritas as I have been, but add in the Short Block (which, from what I understand, basically divides the small dc USB power from the line which helps to improve sound."
The SB should always be used with the Overdrive. It filters out the common-mode noise from the computer and ground-loops, improving SQ. The side effect of this filtering is that the 5V power in the USB cable is compromised. Rather than selling something that compromises USB power, I just cut the power wire and limit the use of the SB to products that do not use the power in the USB cable like the Overdrive. Because a high inductance is inserted in the ground wire between computer and DAC, it is important to plug the DAC and the computer into the same AC outlet. Using some power conditioners that add even more inductance in the earth ground can be problematic. They usually don't help with digital power anyway. A solution like the Plasmatron from VHaudio.com makes more sense and improves SQ significantly for digital.
Steve N.
Empirical Audio
The SB should always be used with the Overdrive. It filters out the common-mode noise from the computer and ground-loops, improving SQ. The side effect of this filtering is that the 5V power in the USB cable is compromised. Rather than selling something that compromises USB power, I just cut the power wire and limit the use of the SB to products that do not use the power in the USB cable like the Overdrive. Because a high inductance is inserted in the ground wire between computer and DAC, it is important to plug the DAC and the computer into the same AC outlet. Using some power conditioners that add even more inductance in the earth ground can be problematic. They usually don't help with digital power anyway. A solution like the Plasmatron from VHaudio.com makes more sense and improves SQ significantly for digital.
Steve N.
Empirical Audio