L1 Pro16 with external mixer and additional speakers

Interested in L1 Pro16. Can I connect a Barringer 1220 unpowered mixer for more inputs? If needed for large room, can I connect 1 or two 12" powered speakers?

Bose product name




Firmware Version


App Version


What devices were you using that were affected and what version are they on (e.g. Samsung Galaxy S9 on Android 11, iPhone X on iOS14, etc.)

Detailed description of the issue and steps to reproduce


What environment do you experience the issue in? (e.g. noisy office, quiet kitchen, etc.)


When did you start to experience the issue? Did it work correctly previously?


Any troubleshooting steps you took



Hi ChuckE,

Thank you for your post, welcome to the Bose forum! 

You can use an external third-party mixer with the Bose L1 systems to give you more inputs. 

If the mixer has more than one set of outputs, you can connect it to additional speakers as well as the L1 Pro16. Alternatively, the Pro16 has a line output that can be connected to another speaker using an XLR cable.

Hope this helps!