So audiphiles go through the expense and toil of getting a subwoofer but refuse to use the high pass filter for fear it introduces more noise and distortion, which if true, would be hundreds of times smaller than the problems it fixes. They want a pure benefit, no downside solution only. Never mind the pure benefit is so vastly superior to the downside.
All audiophiles EXCEPT @ghdprentice of course. You are baffled by subwoofers. don’t use them, and are publishing misinformation.
Earl Geddes (look him up) shoots down the mystique stating a sub is the LEAST critical of all speakers. "Audiophiles" are not toiling except the one in your imagination. Before you respond with more stuff you make up find some research that backs it up. Just because you are toiling with your sub doesn’t mean anyone else is.