John,
The 3808 allows you to “copy curve”. What all is included in that curve, I do not know. I believe it’s only seven points along the graph and all Audyssey filters are removed. I tried this function for a while but there was something missing, no matter how much I tweaked it. As I’ve stated elsewhere, I use Audyssey, but I have the L/R bypassed, and I also bump up the center channel 2 DB over all others. I run the LFE pretty close to where the room calibration left it, but I always use the meter and set LFE as close to an average as I can get of 5 DB over the remaining channels (with a 3 DB ave over the center).
One thing I notice with Audyssey active, is bass and LFE seams more enveloping as if I was in the middle of it. When I disable Audyssey, the bass and LFE is more directional. Obviously, my room and my personal preferences are different from anyone else. That is why I always encourage others to give it a try before following the herd that has decided Audyssey is junk.
