I have an option to adjust the 'Delay' setting on my Surround Sound System (see signiture), but what exactly does this do? I'm guessing at this point that it's something you adjust if your rear speakers are further away than your front one's or something like that. Is it worth adjusting this setting, and what are the effects of adding extra delay on DD5.1/DTS recordings or the surround sound stage in general? At the moment I have my four main speakers at equal distances from the listening position (ie. I'm sitting right in the centre), with my centre speaker on top of my TV. Thanks for any help!