I haven't tried using both at the same time but it would have to sound good.
For sure it would running mono. I always do stereo though.
I have set two Nanos and two Compacts up and a-b tested them. At close quarters the Nanos won, but it was just in my small office.
That prompted me to try them on a job and they passed that test with flying colors too.
I do have a couple of bigger jobs coming up and I think the Boses might cover them better.
Maybe I'll take 'em all!