Hi TroyD,
Systems like ARC or Audessey change the broadband amplitude response of the speaker to try and hit a target response curve measured in your room. We do not think this is a good idea above 300 Hz because, with properly designed speakers, the odds are very high it will actually downgrade the sound quality. The DSP that comes with the LFR series is making the Sound Power Curve and the Listening Window Curve relate to each other in perfect harmony in an anechoic environment. This translates into an enveloping soundstage in your room that is uniquely seductive.
