Free the Tone FUTURE FACTORY FF-1YCreation of a new sound this was the motto for the development of FREE THE TONE FUTURE FACTORY FF 1Y. Many digital delay units that implement a modulation function have been introduced to date. In general, the phase of a low frequency oscillator (LFO) used in these modulation circuits changes regularly at a preset cycle. However in our FUTURE FACTORY, we succeeded in creating a new modulation sound with a unique method in which signals phase changes