Room Correction: Should I disconnect my REL Subwoofers before running room correction?

Did you buy the full version of Dirac live or are you running the  free version that comes with the NAD? The free version only goes from 20hz - 500hz so I would leave the subs on,  doesn't the instructions tell you how to set the subwoofer? 

I bought it second hand and downloaded the app.   I ran it a number of months ago and looks plug and play.  I think it ask if you have subs during set up but not subs integrated with mains as in the case of the Rels. I think I must have selected “no subs”.  So the A.I. basically thinks those are my mains.  

I would run it again from the beginning when it asks about subs say yes it assumes you’re integrating them with either small or large main speakers. You might have to adjust the sub volume on the sub or it might allow it in the software but it should have a volume bar in the RC and you will need to adjust until it matches the main speakers. You can keep the crossover on the sub at the max. It's only going to correct below 500hz. 

@George. To clarify : So when running the RC, I would set the sub volume at 50% and the frequency at 100%? If I am understanding that, would I then leave the sub at those levels when playing music?

Yes make sure you say yes to having a sub, volume at 50% and xover at max hz, if your auto setup room correction program is done using a microphone, the the program should do it all for you, even the sub phasing. I know Audyssey does, and it’s very good at it hardly had to manually tweak it all in my HT room.

Cheers George

Interesting.  Thanks.