Doubt you ran DCAC for those results? Or did you try that at all?
Is it a crossover at 120hz or is that the LPF of LFE setting (which merely limits the LFE channel, i.e. the ".1" channel)? If it is the LPF of LFE it is normally set for 120hz. You could well use that as crossover (which is the setting for the speaker/sub as to where the low pass and high pass filters "cross over") as well, particularly if you have very small satellite speakers that don't have much lower end response....might be a bit high at 120hz for some but if you can't localize the sub at that setting its just a matter of preference. 80 is a more common starting point for crossover, tho.
The levels and delays (distance) settings are based on your listening position's distance from the speakers as well as the sensitivity of the speakers. The levels shouldn't need to be maxed out. If you are not using an spl meter to set the levels, I'd say 0 is a better goal than maxing it out. Somewhat depends on what speakers you're using....what models? I haven't used upfiring but that distance setting was chosen why particularly?
