Turns the prophet 12 on of off, A ¼″ stereo headphone jack, Main/a outputs and b outputs – Dave Smith Instruments PROPHET 12 DESKTOP User Manual
Page 19: Power switch, Headphones

7
Prophet 12 Module Operation Manual
Connections
Main/A Outputs and B Outputs—
Unbalanced, ¼″ audio outputs. The Main
outputs are a mix of a program’s A and B layers. When plugs are inserted into the
B outputs, only layer A is available from the Main outputs and layer B is routed
to the B outputs. See Layers, Split, and Stack on page 44 for more information.
The Prophet 12 sounds great in stereo, but can be switched to mono. See “Mono/
Stereo” in Global Settings on page 9.
Power Switch—
Turns the Prophet 12 On of Off.
Headphones—
A ¼″ stereo headphone jack.
USB
Sustain
Pedal 1
Pedal 2
MIDI In
MIDI Out
MIDI Thru
15VDC, 1400 mA
On / Off
Right
Left
Right
Left
Main / A Outputs
B Outputs
Headphones