Originally Posted by makkan00
Technic / VP, any comments?
Somewhere in here VP determined that the PDX amps single-ended inputs are referenced to 0V and not to ground
. That's the reason that they work with the OEM HU balanced signals (double-ended outputs, as in both wires have voltage).
There is no balanced-signal circuitry per se in the PDX amps.
-2015 F30 320i, Imperial/Oyster, 8AT, ED
-2012 E92 M3 Jerez Black/Rust Brown, M-DCT, ED: Gone
-2008 E90 M3 Melbourne Red/Bamboo, 6MT: Gone
-2007 MK5 GTI United Grey/Grey, DSG: Gone
-2004 E46 M3 Carbon Black/Cinnamon, 6MT: Gone