luvrbcs

This came from the sheet I got when I ordered my AVIC-D3:

*Subwoofer/Non-fading Preouts:* In addition to the front and rear
preamp outputs, there is one set of outputs that may be set for
"subwoofer" or "non-fading" output. When set to "non-fading", the
signal is full-range and the output level is user selectable from
-6 to +6. When set to "subwoofer", the outputs are non-fading, and
they may be set for normal or reverse phase, 50Hz/80Hz/125Hz
low-pass output, and the level is user selectable from -6 to +6.

smythge

I have the AVIC D3, looks great and works great. I've had a couple others in as well, Jensen with the flip up screen (junk), and an Alpine Single din. None compare to the Pioneer AVIC D3.