[EliasGwinn]

Music_man,

Just to clear up what you asked before, the DAC1 circuitry is not transistor based.

Also, the D-to-A chip has a (true) balanced output. This balanced output is then fed into a differential amp. The output is the difference of the + signal and the - signal. You now have a single-ended signal with 6 dB more amplitude and with the common-noise rejected. This single-ended signal is then sent on to the headphone circuitry.

Hope that answers your questions...

Thanks,
Elias