I always leave the d-range compression to "Off" on my denon 3802 receiver, but after putting it on "HI", I didn't notice much audible difference... I seem to remember that with my last receiver (yamaha rx-v 595a) a change of this setting had a lot more impact... When my DRC is set to "HI", I still get a lot of subwoofer output. I can't hear the difference with when the DRC is switched off. Shouldn't the subwoofer be a lot less loud with DRC switched to "HI"?