Possession of the PMA 2020, with which I am already very happy. Sonically, I can not tell the difference between now 1520 PMA 2020 PMA. Disappointingly, only the volume pot which is quieter up to 4 dB to 12:00 clock in the left channel. The key for Source Direct is out now, with balance control in 10:00 clock position is not it then. That might in an amplifier in this price range actually not be.