Yup, height.
Like your speaker is coaxial, so the tweeter & woofer is at the same height because same axis. So how can the mixing engineer position the kick drum below the snare?
I think the mixing engineer use selective frequency band EQ to position the height, so the height positioning works for WMT speaker since the drivers are stacked above each other. So how it works for coaxial speaker? Hmm...
Not close

There are 2 major types. Close micking and acoustic micking. In latter, either single or dual mics in stereo separation, no additional DSP required, and as good as it can sound.
In close micking, there are about 2 additional mics over the drum set to capture the reverberation and height.
There might be a lot more ways by now, but this is all I know.
Reverberation is the key if you are looking for.