That means you cannot mix them with other speakers as you have described.
I own Bose Acoustimass 16 which consists of six satellite speakers and a sub-woofer.
To upgrade my system for movies I have purchased Klipsch RF 62 ii (right and left floor standing speakers), Klipsch RC 62 ii (center speaker) and Klipsch SW 112(12" subwoofer).
I want to use 4 Bose satellite speakers as surround speakers and want to purchase Onkyo TX-NR 818 A/V receiver for the setup. Please help and advise is this setup fine or some changes can improve.