I/O Mode bypasses the SSL 12 Mixer's routing matrix and fixes the routing as shown in the table below:
You can put SSL 12 into I/O Mode by engaging the tick box in the upper-left corner of the SSL 12 Mixer:
I/O Mode can be used for different purposes:
- To simplify the operation of the unit when you do not need the full flexibility that the SSL 12 Mixer offers.
- It allows SSL 12's outputs to operate at 176.4 or 192 kHz:
- When I/O Mode is not engaged (SSL 12 Mixer is active) and you are operating at sample rates of 176.4 or 192 kHz, SSL 12's outputs are automatically down-sampled to 88.2 or 96 kHz in order to preserve the full mixing capability of the mixer. Other audio interfaces typically limit mixer capability in the same scenario.
So, if you want end-to-end 176.4 or 192 kHz performance, then I/O Mode is a useful option.