Zero feedback.
Balanced and isolated input and outputs.
Output configurable to drive any impedance load, from electrostatics to sub-ohm parallel linear array loudspeakers
Good EMI/RFI performance.
Low voltage operation ( sub 60 volts ), no potentially lethal HT.
Only two power semiconductors required for Push Pull version.
Minimum components, little opportunity for noise generation (150 dB signal to noise ratio).
No capacitors in the audio signal path.
"Direct" signal connection from input to output.