T1 to T8S to Two L1 Model II
This is an example of how you can connect a T1 ToneMatch Audio Engine to a T8S ToneMatch mixer to two L1 Model II systems.
This assumes that you will run the T1 ToneMatch Audio Engine output as mono.
T1 Power
You won't be connecting the T1 to a power stand so you will need a T1 ToneMatch® Audio Engine power supply.
Connect the T1 ToneMatch Audio Engine Master Output to T8S ToneMatch mixer Aux Input Channel 9
Connecting to Aux Input Channel 9 leaves all eight full featured channels available for other inputs. You will need to control T1 Pan and Level using the T8S PAN/AUX settings.
The output from the T1 ToneMatch Audio Engine is a balanced mono 1/4 inch (6.35 mm) Tip-Ring-Sleeve and the input on the T8S ToneMatch mixer is a balanced mono 1/4 inch (6.35 mm) Tip-Ring-Sleeve so use a cable like this.
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1/4" TRS Balanced Patch Cable (audiopile.net)
T8S ToneMatch mixer PAN/AUX Input Settings
Bose engineered the T4S/T8S ToneMatch mixers to have four (T4s) / eight (T8S) full-function channels and two Auxiliary inputs. The Aux inputs 5/6 (T4S) or 9/10 (T8S) are routed directly to the Main Output.
You can use the Pan and Level adjustments accessible through the PAN/AUX menu. There are no changes to routing, or signal processing available. Only T4S/T8S channels one through four (T4S) / channels one through eight (T8S) can be routed to the Aux Outputs.
The Aux inputs are useful for sources that have their own volume and signal processing (e.g. EQ or effects). They are similar to an effects return channel on other mixers. Use the Master Volume to raise and lower the volume of the Aux inputs in sync with the other channels. To change the volume of the Aux inputs relative to the other inputs you can use the AUX/PAN Level (soft menu), or on the source device.
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On the T8S ToneMatch mixer on the PAN/AUX setting for Aux Input (Channel 9) set the Pan to Left, Right, or Center as required. Center will send the T1 ToneMatch Audio Engine output to both L1 Model II systems.