The concern is headroom. That's how much power is available after the signal is sent to the amp. Lets say you start out with 200 watts. The bass and drums are pretty demanding and the first note you play "asks" the amp for 50watts of power ... the headroom is now 150 watts.
One strong singer could easily use up that 150 with a strong lead vocal, and you have 4 other singers !! PLUS - kb, bass etc !!

If you play very quietly and don;t use the bass and drums too loud, then you MIGHT get away with a home system like that 2200, but if the 5 singers were Me, Dnj, Don Mason, Rich Childs and Terry Connely ...... that system would run home to Momma ... cryin all the way !

It's all about moderation, so if you put a reasonably quiet signal INTO it, you MIGHT get a pretty good (although moderatly amplified) sound. As soon as you push it .... those tiny tweeters will self destruct. You may have better success running a mixer directly into the kb fisrt and use the compresssor. Then run the kb into the 2200s alone.

Try it ...... if you blow them up .... it's only $100 bucks, and the woofer will most likely be unaffected, so you can still use that with the kb for extended bass response.

My warning:

Don't do it.

Your decision:

????????