based on my knowledge ...i think for your case ,the best will be BOSE only ..because BOSE is different from other types..there speaker impedance ranges are from 4 to 8 ohms ..where as normal AVR will be having 6 to 8 ohms .
Also in BOSE ,it is not having a sub woofer ..instead of this they are having Acoustimass module ..So I think to drive ur speakers u require the BOSE complete setup only..(some body correct me if I'm wrong..)but the problem prices in BOSE are very high..
Otherwise u can contact the BOSE expertise people for your queries.