Passive Pickup System
Consists of two high impedence elements inside the instrument, which combine into a standard 1/4" guitar jack. Volume & tone are controlled externally, either by an outboard preamp or an amplifier. Outputs to a standard guitar cable.
Active Pickup System:
Consists of three pickup elements inside the instrument, one for each bridge, each with it's own volume control.
There is a 4th knob which is the master instrument output. All this outputs into a standard 1/4" guitar jack.
This system requires a 9 volt battery to run the preamp (Battery housing is on the underside of the instrument body)
9-volt battery housing / underside of instrument. Battery life is 12,000 hours.
Volume 1: This controls the volume for the trompette bridge.
Volume 2: Chanterelle volume (melody strings)
Volume 3: Bourdons (low drones) volume
Master Volume: The first 3 volumes (above) are more like an onboard mixer. Once you have your balance set up how you like it, you can use the master to control the overall volume to your amplifier.