What final Ohm Impedance would I end up with if I hooked up both of these subs? And is it ok to do?

I have a JL 12w7 (single 3ohm voice coil) and a 15" Alpine (dual 2ohm voice coil) alsi the alpine is currently wired to a 4ohm load.. Both are single subs in seperate ported boxes (JL in the H.O. ported box and the Alpine in a custom 2.9cubic foot pirted box)So just for the hell of it to hear what they sound like running at the same time I want to hook them both up to my Kenwood Excelon x1200m monoblock amp.. Is it possible? Or wuld it do anything different if I wired the alpine in series instead for a 1ohm load? Wuld that then give me a final 4ohm load combined with the 3ohm svc JL?