should the crossover and LFE frequency settings be the same?
One would think so if you are using
-an identical microphone (the newer units may indeed be a different internal capsule),
-the exact same mic locations and positioning to run you measurements, down to the millimeter
glues down their mic, so nobody actually achieves this and this alone could easily account for sonic differences which people will incorrectly attribute to things like "that fantastic sounding toroidal transformer on the other unit", etc].
-the exact same speakers
-the exact same room
- the exact same speaker placement and positioning
-the exact same room decor [you wouldn't think that magazine dropped on the end table during one test run, not there upon the next unit's test run, would make a difference, but it might
, including also where you stand/sit exactly in the room when the test run occurs.]
However there's a possiblity the MultiEq target curve in the SR7002 is slightly different than MultiEq XT (found on the AV7005) or just day to day slight variations may also make small changes, or the number of test runs averaged together, but I wouldn't worry about it.
80 Hz is ther correct frequency for just about everyone. Ignore the people who insist that their speakers go lower so they choose a lower x-over freq. They don't get the whole premise of what bass management (and controlling the sub channel independently) is all about. THX picked 80 Hz as optimal, both for homes and for professional venues, for a good reason. What speakers one has is immaterial. What counts is what the supplied mic measured
in the THAT room. Don't second guess it.