Sigh. Try this. Set up both processors using their internal reference tones so that 0db = 75db on the RS meter. Put on T-2, Opening Scene, Fight Club Scenes 34 and 35, or any other sonic blockbuster. Set the volume at 0db. Both processors should/will be equally loud, provided they are calibrated properly, and they both will blast you out of the room at both these films loudest parts. If they vary in loudness, you have not calibrated the systems properly, believe it if you will.