@georgehifi - I believe you are correct. The information on the totaldac website says:
Based of the huge input impedance and low output impedance, the d1-driver should work very well as a buffer. You can get it as a unity (0dB) gain version or with 10dB gain. I would really like to hear the unity gain version and compare the sound of it with my SMc unit.
From the website:
-one-box stereo version: RCA inputs, RCA outputs + unbalanced XLR outputsThe XLR outputs on the stereo version appear to be "convenience" outputs for those using XLR cables but not really carrying two symmetrically balanced/inverted signals. Sounds like a single-ended piece that must be doubled up (mono version) if you want a true balanced circuit.
-two-box monobloc version: RCA inputs + XLR inputs, RCA outputs + balanced XLR outputs
Based of the huge input impedance and low output impedance, the d1-driver should work very well as a buffer. You can get it as a unity (0dB) gain version or with 10dB gain. I would really like to hear the unity gain version and compare the sound of it with my SMc unit.
From the website:
-very easy input impedance: 1MegaOhm
-natural low output impedance plus added 40ohm pure resitor for a perfect interconnect impedance matching
-can drive anything above 100ohm without distorsion