Does kick bins need relative higher power handling then the rest of the system?

In other words; Are kick bins "invented" to relieve bottom and midds from the high power content in the kick drum region of the frequency spectrum? Thus needing higher durability/power rating relatively?.
-Or is kick bin simply the nickname for second lowest cabs in a 4 way system?
Cheers?
 
Some people just got to have a kick sound that will knock buildings over. LOL

I say no dedicated kicks don't need to be the most powerful part of the system... that would be the subs, but there are genres that seem to emphasize the kick region more than anything else(not much under 60hz) so who knows. The presence of a dedicated kick section also depends on the capabilities of the mid-high section,.. it is possible to cover everything above 80hz with a 2-way but some horn loaded mid designs can't handle anything much below 200-250hz so something else is needed to fill in that region... hence the dedicated kick bin.
 
The kick sound that knocks over buildings comes out of the subs. But when you have subs that will knock over buildings, it gets increasingly difficult to get mids that will keep up AND mate properly with a 1.4 inch compression driver. Staying horn loaded, the mass corner just gets too high and the directivity narrows if you want to play to 80 with authority. Let the light cone mids work where they want (200 or 300), and put some x-max and some cubic footage into the low mids and the whole mid range improves.
 
This is spl distribution based on 800 sound clips. Pic stolen. Will try to find power distribution.
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