Originally Posted by bommai
Does the Audyssey EQ calibration on the NAD T775HD allow you to do that? When I do the calibration, it automatically sets the crossover and does the EQ. Unfortunately, I don't like the crossover it selects especially for my fronts. It says they are 160Hz when the fronts are Klipsch RF5 (down to 37Hz). I am wondering if the EQ'd system goes out of EQ if I manually change the crossovers after the setup is run.
Regardless of AVR, Audyssey detects the in room low frequency roll off of your speakers, applies no further correction below that point, and reports that info to the AVR, which then sets the crossover frequency.
You, the user, are always free to adjust the automatically selected crossover frequency. But you should only raise the crossover. It is rarely a good idea to lower it, as that additional bandwidth goes uncorrected.
If you notice a big discrepancy (e.g. 160 Hz vs 37 Hz) between the automatically selected crossover frequency and your speakers' supposed low frequency capability, then you have acoustical issues that need to be addressed. In their current placements relative to the listening position, your speakers ostensibly experience a major suckout ~160 Hz. Fix that issue, then rerun Audyssey.