Warranty (unlikely given second hand nature but one can hope)? Glad they could be fixed and are back working for you.

Curious whether they are white cone vs black cone on the wideband. Black cone seems to be a later revision and trying to establish where in the serial number sequence this might have occurred…


M#1: Bluesound Node (N130)>DSP3100 + Analog Sub
M#2: WiiM Pro > DSP5000