Check the Rythmik thread on AVS; pretty sure Brian discussed it there. I do not remember the reasoning. https://www.avsforum.com/threads/official-rythmik-audio-subwoofer-thread.1214550/#post-17875554 I have not figured out their search function (do not visit as often as I used to).Anyone know why the Rythmik L22 were discontinued? Doesn't appear to be a successor on their page either.
The L22 is (was) two 12" drivers stacked vertically to provide greater output with a smaller footprint. It is not a 22" driver. The largest driver Rythmik offers is 18".Well I don’t know, but cost containment is usually the driving force in situations like this. Their drivers are custom made, in house, I believe. Could be they didn’t sell enough units to give workable economy of scale. Dual 15 or single 18 is probably enough for most domestic applications. Some folks would rather do two or more 18’s placed in different locations vs a single 22. And not as many people have the space for a 22, too.