Re: Adding a powered subwoofer
The DSP will not detect or change anything due to the sub. You should experiment with placement and settings. Ideally, the sub should be centered between the two tops. If placed to one side, there will be more bass on that side. I would set it up as follows:
Set ZLX mode to "Live"
Set Location to "Pole"
Set ZLX Sub to "ELX118P" - on both tops.
Now wire your outputs to the sub, then through to one ZLX, then through to the other ZLX.
Or, you can go Left out to one sub & ZLX, and Right out to the other ZLX.
Get it up & running per above, then go to the ZLX that does not have a sub below it, and change the sub setting to "None", and see how it sounds.