I have mine, SVS, set at right around +.05 or +1db on my Denon 4308ci, the cross over is right around 60hz, the L/R are set right around +6db and the center is somewhere around +5-7db. The gain is right around 11 o'clock. The cross over on the SVS is set to maximum as the Denon controls it. The LFE on the Denon is set to "on" I believe, speakers to small.
It will shake the entire house like this and will move you as it is pushing some serious air.