Effect Frequency controls the modulation frequency of the ring modulator and resonators. The frequency range is dependent on the effect type. For Ring Mod, the frequency range of this control is from 0 Hz to 22.05 kHz. For Freak Mod, the frequency range is from 0 Hz to 22.05 kHz. For Resonator+, the frequency range is from 344 to 11.025 kHz. For Resonator–, the frequency range is from 172 Hz to 5.5 kHz.You can also enter a frequency value using keyboard note entry.1 Start-click (Windows) or Control-click (Mac) the Effect Frequency slider to display the pop-up keyboard.2 Select the note on the keyboard that you want for the Effect Frequency.