The P-1 has a ‘Set Mixer’ to adjust the volumes of the 6 mono outputs and stereo headphones out for their live set. You can also stereo link pairs of outputs here. These settings are applied for the whole setlist, and are saved with the setlist. You can also adjust the headphone level by just turning the volume fader without opening the mixer.
The P-1 also has a mixer for the independent submix going to each output and for the headphones. Using this mixer, you can set the levels of the wav files and aux input going to this particular output. You can also mute and unmute them. These settings are saved as part of a song.
If you route a stereo source to one of the mono outputs, then the signal is summed to mono. To keep wavs in stereo, outputs can be linked, which converts them to a stereo pair. Their faders will move together in the set mixer, and they will also share a source mixer. When a pair of outputs are linked, any mono wav files routed to the first output are now sent to both outputs. Any stereo sources that were connected to the first output are now split to left channel and right channel across the stereo pair. Outputs are linked using the set mixer and apply for the whole setlist. Possible pairings are : Outputs 1(L)+2(R), outputs 3(L)+4(R) and outputs 5(L)+6(R).
Many musicians will simply want to send one wav file to each output, which is easy to do. However, with the P-1, it is also possible to create more complex routings and custom mixes for each output, for things like sending a click to the drummer with a different headphone mix.
There are 7 available sound sources which can be routed to an output (6 wav files + 1 Aux input). The Aux input is a mono source. Wave files can be either mono or stereo sources.
There can be a total of 32 connections between the sound sources and the outputs activated in a song.