millercarbonAll the bass at low frequency is mono anyway ... Don’t believe me? Play some music you think has stereo bass. Okay now move the R to L and play it again. See how it sounds exactly the same?
I’m not sure why you’re moving things around. Recordings with stereo bass will have it coming more from one side than the other at times, depending on the instruments and how the recording was made. (I provided a few references to the science of stereo bass in another thread. The research on this goes back to the ’30s, at least. It’s really all about phase.)
Of course, if you set up your system with mono bass, then monophonic bass is all you are ever going to hear from it. That can be a very satisfying presentation and in some problematic rooms, it can be preferable.
It’s true that many LPs are cut with mono LF. But that doesn’t mean there’s no such thing as stereo bass. For example, I never sum the bass on recordings that I make myself. Yes, you can hear the difference.
In the earlier days of hi-fi, it was quite common for audiophiles to make their own recordings. I think it’s unfortunate that has fallen out of fashion, because the practice can give you a meaningful reference, and help you understand some of hi-fi’s common myths.