DCM-390 vs Onkyo DV-CP802
The DV-CP802's signal-to-noise is 110 dB against the DCM-390's 112 dB, its thd 0.005% against 0.003%, and its weight 7.3 kg (16 lbs) against 6.3 kg (14 lbs). Both share output voltage (2.0V RMS).
Both turn up in the same documented systems.