Will the CV B4 have enough power to run 4 infinity kappas in series off of the two front channels so that I can use the rear two channels for a set of rear speakers?

 

Yes. But it won't sound as good in series. You are basically increasing the impedance to a 4 ohm load in series and that amp only produces 80W @ 4 ohms. Your speakers are rated at 75 RMS and can easily take 150 RMS all day long. It can be done. But I'm not sure you will be happy with the results.

 

He is right! I've been there and tried that and didn't work. It was with a different set up, math worked for it but different in real world. Solution was a new amp

 

Thanks guys for the replies. I thought that was what would happen but I wanted to be sure.