I haven't tried the Carver Sonic Holography processor with Axiom speakers, but it will work the same way with most any speakers.
To use a cliche from the '60s, it's far out, man! Acutally, too far out. Depending on the source material, the results are wildly unpredictable. I recall a Neil Young rock recording where Neil sounded as if he were singing behind my right ear. It was very peculiar. It's not realistic in any sense but for weird effects, it can be entertaining. I also recall it's very critical where you sit; the effect disappears if you turn your head to either side. And you have to be equidistant between the two stereo speakers to get the best effect.
Have fun with it if you decide to get it. Eventually, the novelty wears off, I found.
Axiom Resident Expert