In using the discwasher setup audio tones, it says to adjust the subwoofer levels so they are 3dB higher than the other speakers in the room you just calibrated? I know you normally go 3dB below? It says if this setup requires you to adjust the subwoofer to a maximum gain, then it says to rerun the other speakers again but approximatley 3dB's lower, then rerun the sub?