While this unit is named for metal-bodied guitars, it appropriate for all biscuit and cone type resonators. Some of these are made of wood. It delivers a very natural sound from an instrument that is difficult to amplify well.
The output of this pickup is sufficient to drive an amplifier directly in most cases. If you are plugging into a mixer board or PA system or need to run the signal through effects pedals or other equipment, you may need a preamp to increase the signal strength to match that equipment. Preamp not included.