I was on another forum and an old thread got bumped... There was BennyG.

He seems to have fallen off the planet around the new year (2005). Web site down, no posts anywhere...

I've been present at a number of pro mastering sessions for major label commercial release projects, and each time always noticed the mastering engineer applying a Low pass filter around 20Khz. Is this a case of getting rid of frequencies you can't hear that are using up headroom, so you remove it to gain more overall volume on single mixes for radio?.

Brad, Were you involved with "Low" by Cracker. That track has the greatest bass tone...the song would be lost without it. Do you know anything about the chain?