The Plasma-7 sensor is particularly sensitive to strokes and allows you to extract incomparable distortion. If you need a jazz pickup, then this model is definitely not for you. But if you want the whole world to hear you, then feel free to install Plasma-7 and give everyone the heat! The Plasma-7 pickup is made using American enameled wire and Ceramic magnets. The sensor coils are filled with wax to ensure sound purity and eliminate the "microphone" effect. The Plasma-7 sensor is also equipped with a 4-pin cable, which opens up unlimited possibilities for the musician. Location of the nec.