Originally Posted by ninja12
Well, it's been a while since I posted my measurements. Actually, I have not posted any since 1.1. So, now since we are on 1.2.5, I decided it's was time for me to post some of my measurements. As the title indicates, I have measurements. So, here they are. Please take a look and let me know what you think. No punches held.
First off, there's enough improvement in your 12KHz curves -- without problems showing up elsewhere -- that I think they are definitely worth a listen. That's the easy part.
Now two other things jump out and I suspect they result from the same thing -- which is that you've got a pretty thorny room cancellation null between 35Hz and 100Hz, with the worst of it between 35Hz and 50Hz.
I suspect you've applied some room treatment to help with that, and as a result there seems to be no Room Gain at all in your curves (no "hump" near the crossover). Is that how ARC did it, or did you lower the Room Gain value yourself?
Second, ARC is treating the dip at 50Hz as reason to lower the crossover in your non-EQ'd subwoofer. When you EQ the subwoofer, that dip is filled in enough that ARC brings the sub crossover out a bit further. But the impact on the rest of your curves appears to be minor (since you've got decent low frequency response from your other speakers). Which suggests to me that EITHER WAY could work well for you.
For example, the 68dB point (5dB below the basic Target level) is around 35Hz in your LF/RF and around 80Hz in your Center REGARDLESS of whether you've got the subwoofer's internal EQ turned on.
So I would expect the actual listening experience to be very similar between the two different 12KHz setups. In fact the improvement due to getting a little more blending from a little higher subwoofer exposure might be negated by the extra digital processing going on in the EQ. It's tough to know.
I'd try both of the 12KHz setups and pick whichever one feels better to you.
I'm a little more worried about the lack of Room Gain. Honestly I don't know how important that is going to be. If ARC really is deciding on a 0dB Room Gain, you might try "forcing" something a little higher than that -- say 2dB, and see what it sounds like. You can do this without having to re-Measure. You might want to do it only for Movies.
ETA: Depending upon what we discover about LFE Bypass related issues, the slightly higher sub crossover of the EQ'd subwoofer may be better for your LFE. That's another consideration. I.e., when trying to choose listen both to movies (and thus LFE content), and music (bass steered to sub from main speakers but no LFE content).