L1 Pro Daisy Chain
To connect two L1 Pro systems (daisy chain) to use the second system as an extension of the first
- Use an XLR female to 1/4 inch (6.3 mm) Tip-Ring-Sleeve to connect the L1 Pro Line Out to a second L1 Pro (any model) input three
- Set the volume on the second L1 Pro to suit the application.
The Line Out is post-fader. That is, it is the combined signal of all inputs and ToneMatch processing, EQ and Reverb. That includes inputs, 1, 2, 3, Bluetooth, and ToneMatch Port (used for T4S/T8S ToneMatch® Mixers).
The Line Out is pre-System EQ. That is, the signal at the Line Out is flat. It is not affected by the setting of the System EQ switch. 
This applies to any two L1 Pro systems (L1 Pro8, L1 Pro16, L1 Pro32).