A:Answer I don’t think so. As far as I understand it, the Bluetooth feature is for connecting an audio source as an input, not for connecting additional output or speakers. You can only have one Bluetooth device connected at any given time, so that would also conflict with any input connection.
The R41P does have a “Sub Out” connection for directly connecting to a compatible, powered subwoofer. I imagine this works with most of Klipsch’s Powered Subwoofers, but I’m not sure.