I was taking a look at the "Settings" of my digital cable box (Scientific Atlanta Explorer 2000), and came across an "audio range" option. The three choices are Wide, Narrow, and Normal. I don't have my HT set up yet (waiting on shipment), so audio just comes from the crap speakers in the TV. The only difference I perceive between the settings is _volume_. I don't have the manual for the digital cable box... can anyone here tell me what these settings are supposed to affect? Thanks!