Sub best at high crossover?

Never trust YOUR ears or really, what is the point of this forum? Even if the suggestions here result in your hifi setup becoming an impractical pain in the ass and sounding like dog meat to you, you could be making some sort of aural mistake resulting in fun for you, but an utter lack of "geek credibility" among the Brain Trust...let this be a warning. Also, unless a "class field trip" to your house is organized, nobody around here will have a clue what your room sounds like. I'm sure this response was helpful. You're welcome.

My post was supposed to be silly, and any other interpretation is strictly prohibited. I use test CD warble tones to see what my room is doing to the sound and then I mostly ignore that, but it is interesting to see where your main speakers actually stop producing useful bass, and where the sub goes. That IS useful information in setting the frequency point in the sub relative to the mains, but final tweeking is up to my wax filled and frequency challanged earballs.

I'm suppressing an "according to your sister" retort, and that's not easy.