Fishman POWERMIX Manual page 9

Piezo/Magnetic Outboard Mixing Preamp
Suggested Signal Routing Options
STEREO CABLE OPERATION
Magnetic and piezo signals from your instrument are routed through a
stereo instrument cable to the Mag/Stereo Input jack on the PowerMix.
The Tip signal (magnetic) goes to the magnetic input stage. The Ring signal
(piezo) goes to the piezo input stage. In this case, the Piezo Input jack is
unused.
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