DUDU-Meng Signals through RCA is low voltage, 1.8v and when setting gains, no matter what I do, there is noise even at higher volumes 70%. I did test clipping on head unit and it happens at 80% volume, so adjusted the gains voltage accordingly for a 75w RMS/channel amp.
DUDU seriously need to implement high volt 4-5v RCA output on some of their models.