Graph Tech Ghost - Manual (Page 12)

12
This option lets you run your acoustic and/or magnetic
signals down pin number 7 of the 13-pin cable plugged into
the Hexpander, so you don’t need a 1/4” cable attached to
your guitar. Most MIDI converters have two 1/4” outputs
on the back -- one for MIDI and one for this pin-7 signal,
so you can still run your mags to your electric guitar amp.
Hexpander only and mag-to-pin-7
Piezo
Volume
- OR -
13-pin MIDI Cable
Acoustic Amp
MIDI
MIDI Converter
Electric Guitar Amp
Blended Mag and Piezo