ToneMatch Power Supply
ToneMatch® Audio Engine power supply. This is the power supply for the ToneMatch Mixer. You will need this to power your ToneMatch Mixer when running with an L1 Compact, S1 Pro System, L1 Classic, L1 Model I, or or non-Bose equipment. You will need a one of these if you have two ToneMatch Mixers running into a single L1® Model II or L1® Model 1S. — details below the picture.
If you are attaching two T1 ToneMatch® Audio Engines to a single L1® Model II then you will need this power supply to support the second T1® - the one connected to the Power Stand Analog Input.
See: Connecting Two T1®s to a Model II for details.