Alexander Pedals Wavelength High Bandwidth Digital Modulator. " Authorized Dealer"More. Thats the best way we can describe the sounds and features of the Wavelength. We took everything from our Waveland Multi Modulator and blew it up larger than life, while keeping it the exact same size. Weve added some welcome improvements like more modulation engines and tap tempo, and some cool surprises like selectable waveforms. Its a true all in wonder for your modulation needs.