How to use use analog output for subwoofer & output to home theater

Just bought a new ELAC subwoofer to connect to my Sprout only to realize I have an issue - I am already using the analog output to connect my Spout to the Russound system that drives the speakers installed throughout my house. Anyone have suggestions for how to connect Spout to my subwoofer & other system at the same time? Thanks in advance…

You might try a Y-adaptor (stereo mini-plug to dual stereo mini-jacks or RCA jacks). If the subwoofer also has speaker jacks you might try connecting that way rather than the RCA inputs.