Not to hyjack your post but I am also a "New" Bose Compact owner. I have "Two". I use a PA2x and I am extemely pleased with my decision.
casp I believe you can Daisy chain them. The output jack on the back can go into the input of another, I believe that's in the manual. I use them in stereo directly from the PA2x outputs. Set the master volumes to 12 o'clock and control the overall volume from the PA2x ... works great, don't need a mixer.