Originally Posted by Stevetd
What kind of problems might I run into running ARC on two separate units on one laptop?
Each unit will come with its own ARC mic (USB connection to the PC), and a pair of licensing/calibration files that are matched to the serial number of the unit and the serial number of the ARC mic.
You'll install ARC for either unit on your PC and the pair of files for that unit/mic will be installed with the application. Then you will manually copy the pair of files from the ARC install CD of the second unit into the same location (Windows > Program Files > Anthem > Anthem Room Correction) so you've now got two pair of files in there along with the one copy of the installed ARC application.
When you run ARC it will ask you to select which mic you are using. Pick the mic for the unit you intend to set up and just be sure the mic you actually use happens to be the mic you select. (ARC will warn you if you mistakenly try to use some random USB mic or the mic built into your PC, but ARC can not tell if you mistakenly use the WRONG ARC mic.)
That's basically it.
The result of doing an ARC run is a data file on the PC. There's no problem having data files for different Anthems. When the results in the data file are how you like them, you use the ARC application to Upload those results to that Anthem after which you no longer need the PC connected to the Anthem.
When you install new updates of the ARC application on your PC, the calibration/licensing file pairs will be left in place from the previous install, so no worries there either.
Things are only slightly trickier if you also happen to have Paradigm subs with the PBK feature (the subwoofer portion of ARC). There's a PBK mic for those.