There's no cut and dry response. The exact settings will depend on your room, speaker position and your sound preferences. Setting up a subwoofer is a long and tedious process. Use music that you are intimately familiar with that has strong mid-bass (80-120Hz), bass (40-60Hz) and deep bass (sub 40Hz). The proper setup will not bloat the mid-bass while leaving the bass untouched and simultaneously providing the deep tones. I use REL Stadiums and the effort to properly integrate them is well worth the effort.
