I am in a band that wants to migrate from traditional live sound (Mixer, Mains, Subs, and Monitors for FOH) to the Bose L1 Model 1S. We are 5 piece (Two guitars, Bass, Keyboard, drums, with 4 vocals). We already have a Bose L1 Model 1S w/B1 Sub, with a TS4 ToneMatch mixer. We would like to connect to our existing Behringer X-Air 18. Then connect the L/R Outputs from that into the TS4. We've tested this and it works pretty well. We are looking for recommendations on best practices for using the setup with a single Bose L1 Model 1S and also for using two Bose L1 Model 1S. Can anyone provide us with recommendations?