Originally Posted by obie_fl
What is the advantage to taking separate readings for 5.1 vs 2.1 or do you use different positions? I don't see any advantage to doing a separate run for each configuration since ARC only "listens" to one speaker at a time. Am I missing something?
ARC does only listen to one speaker at a time. But when you do just one ARC run for 5.1, and then change the speaker configuration in ARC to 2.1 for music, it keeps the same room gain and sets the subwoofer level the same.
When I do (and I assume others also) a separate 5.1 run for movies and 2.1 run for music ARC consistently sets room gain and subwoofer level @1dB lower for the 2.1 music configuration.
Same speakers and same mic positions--- at least the mic positions are as close as humanly possible. I have had ARC since it came out and have done numerous ARC runs in 2 different rooms with different speakers and sub(s), and the 2.1 ARC run is always different and always has a lower room gain and subwoofer level.
I don't think if you are missing anything. Changing the speaker configuration in ARC is most certainly good and works great.
For me doing the separate 5.1 and 2.1 runs sounds just a little better. The bass is less boomy for music, but retains the impact for movies.
For me its just a little bit better. And since the purpose of this thread is to tweak the sound (and picture) to get the most out of the system, I suggest to do separate movie and music runs if you use different speaker configurations.
Try it the next time you do an ARC run. You might like it.