After observing the back-and-forth discussion between
, I decided it might be worthwhile taking a look at the alignment among my main speakers. I have already spent a considerable amount of time using REW to time-align the four subs, but I have never paid much attention to the alignment of the mains.
I took measurements of the LCR speakers with subs turned off, both without Dirac Live (using a blank pre-set on the 88A), and with Dirac Live turned on (i.e. using the delay settings set by Dirac). IMO, the measurements with Dirac Live turned on are the ones to look at, since that is the way I listen to the system. Here is what I found:
While the alignment of the left and right speakers is quite close, the alignment of the center is somewhat behind the other two. As measured by REW, the gap is .277ms.
Now, is this alignment minor, and likely not to be audible, or is it worth attempting to correct? Being slightly OCD, I decided to see if I could get a better alignment. By adding .23ms to the Left, and .29ms to the right, here is what I measure now:
Can't get much closer than this result. I added the delays in the Output Tab on the 88A:
Looking for feedback: was it worth making this minor correction, or should I have trusted what Dirac Live set and not changed anything? And are the slight adjustments likely to be audible or not?