Still use Alpine PDX-V9 and PDX-F6?

I bought my A22 last year and the current setup is 4 REV10 tower speakers, JL inboard speakers, and a JL sub. After some research I've learned that the REV10s are being way under powered unless they have the amps connected some crazy way. So I'm buying a ARC KS 600.2 for the REV10s but should I sell the other amps or can I still use then someway or do I need to get a whole new amp setup for the inboard speakers and sub?