4400 Hz Piezo element, diameter 27 mm impedance 400 Ohm Upgrade your acoustic instrument to semi-acoustic with this piezo-element

4000 Hz Piezo element, diameter 27 mm impedance 500 Ohm without wires Upgrade your acoustic instrument to semi-acoustic with this piezo-element

4400 Hz Piezo element, diameter 27 mm impedance 200 Ohm Upgrade your acoustic instrument to semi-acoustic with this piezo-element

With 2.5 watts, a volume potentiometer plus a gain trim potentiometer mounted right on the PCB, you can go from clean to crunchy with a twist. Dial in your personal tone then set it. As an analog voiced circuit, the amp has warm tube tones with the gain providing control over the amount of crunch desired. The SD- 2W delivers powerful volume with less noise. From clean tone to heavy distortion you can rely on SD-2W to create the best sound you could ever imagine LED, Head Phone Jack can be instal