Resurrecting this thread from 2015...I have new 7810.
I ran YPAO RSC and, like many other users, it set my front monitors to large (not small, which they are) and my surround crossover freq to 100Hz. I used four mic positions, starting with my main one. (My living room is long and narrow with the display & front monitors in the right front (narrow) corner and my main seat along the long wall on the same side.)
I then went into manual settings, where I set fronts to small with an 80Hz xover and the rear surrounds to 80Hz. These are settings that worked well with my previous Denon and Audyssey, and they work well - at least as a starting point - with the 7810.
I also changed the distances to ones measured from each speaker to my main listening position.
I've read quite a bit about DSP & YPAO and understand that with YPAO the "distance" figures represent time delay, and that YPAO calibration is also factoring in room reflections, phasing, and whatnot. Therefore, the xover and distance settings that YPAO RSC returned will theoretically give me the "best" sound by correcting sonic issues created by the interactions between room dimensions/surface treatments/ speaker & listening positions, etc.
From the previous post it seems that I can use start with the YPAO settings and manually change them to create a new correction scenario. I assume that will save all of the "behind the scenes" YPAO calibrations plus change only those settings that I change, such as switching front speakers from large to small, and changing front and surround crossover points.
If my above assumption is correct...Can I save THREE DSP scenarios and then compare them? Three would be: (1) the original YPAO calibration, (2) my manual settings, and (3) the original YPAO calibration (#1) plus any adjustments I make to, say, speaker "size" and crossover points?
Please feel free to correct me, tell me what I can do and how, and so forth.
I found my way around Audyssey Multi fairly easily. Am struggling more to understand and execute the Yamaha DSP options.
Thanks!!