ZVEX Super Ringtone Ring Modulator (Vexter Series)This product is a far more advanced version of our original Ringtone pedal. Basically, the Super Ringtone is a 16 step sequencer of ring modulators. Ladies and gentlemen, you have just entered some very strange waters. Please allow me to explain. A ring modulator is a circuit that generates its own pitch or carrier tone initially. When another pitch enters the circuit, it then yields the difference between the two frequencies as one tone, and the sum