The resonator is a wooden shell that is attached to the Heli-Mount frame by means of four brass lugs and four thumbscrews. Soundwaves bounce off the resonator and are directed away from the player and towards the listener. This photograph shows the back of the resonator which is made of Walnut covered Poplar Nechville Musical Products Company is located in Bloomington, Minnesota and is owned and operated by Tom Nechville.