Apologies up-front, for my blatant ignorance.
Referring back to the discussions in this thread starting on August 6th... at one point I mentioned that I've owned four YPAO-equipped Yamaha AVRs (current one is an RX-A2010).
What I didn't mention, is that -- since I generally prefer "manual" adjustments over "automatic" -- I've never once tried using
YPAO... until last week.
My setup is Klipsch RF-7 II fronts, RC-64 II center, SF-3 towers as surrounds, and an SVS SB12 sub. I'm extremely happy with the overall sound, but in the interest of possible "betterment" -- and since the A2010 has manual PEQ ability that includes the subwoofer -- I recently acquired a Mastech MS6700 SPL meter... which I really like:
Upon graphing my measurements, I discovered some areas which seemed to need "adjustment", so I started messing around with the manual PEQ... only to discover that I can't make any sense out of the Yamaha's PEQ adjustment parameters at all. It provides the ability to adjust PEQ according to "Band/Gain", "Frequency/Gain" and "Q/Gain", but when I try them, each of those three parameters seems to do exactly the same thing to the graph of the signal... so there's obviously a huge chunk of understanding that I'm completely missing, both in regards to how to specifically go about entering
those adjustments, and in understanding what the graphs are telling me.
After fiddling with it for a few hours, I gave up, and reset the graphs' curves to flat. The following day, I finally set up the YPAO mike, and performed the auto procedure, using the "flat" setting. After running it, I reset all the speakers to small, reset the crossovers to 60Hz and reset the sub's output level to "0" (YPAO set it to +4.5), but left everything else the way YPAO had set it.
Of course, after transferring the auto settings into manual so I could look at what it had done, the frequency graphs still made no sense to me.
In any case, even though I didn't initially like how it sounded, I listened to the system like that for the next two days -- just to be "fair" -- after which I decided that it sounded basically "dead", and again reset everything back to pre-YPAO.
So... since the A2010 Owner's Manual offers no explanation whatsoever about how or in what way the manual "Band/Gain", "Frequency/Gain" and "Q/Gain" PEQ adjustments work, or what they each specifically do, or what the differences between changes in each of them actually accomplish (I do understand that Q-Gain adjusts bandwidth)... can anyone please point me to a tutorial or online discussion that specifically addresses Yamaha YPAO manual PEQ adjustment, and interpretation of its graphs, in detail?
PMs regarding this would be very
welcome, as well... and I truly appreciate any assistance offered!