The Roger That FM Modulator - Demodulator from Fairfield Circuitry was designed to emulate the sounds of an FM radio signal taking its dying breaths over the airwaves. Its distortion and sonic deconstruction capabilities are seemingly endless thanks to the highly interactive controls within its circuitry. You can set it to diamond-cutting-sharp fuzz, or a tube-slamming preamp with ease. But, if you want to dive in deep, you’ll soon find that the slightest turn of a knob or flip of a switch can engage sound degradation like you’ve never experienced, with usability that we all crave.

The relationship in which each control parameter relies on one another is second to none. Drive, being the most straight forward, takes care of your input (and in this case, clean to dirty). Shift is responsible for the tracking of your signal, whether it be guitar or a saxophone (yes, we encourage you to try literally any instrument with this). You’ll find your “noise” controllable mostly by the Tune knob, which can be further encouraged to derail itself by incorporating the CV with a 1/8th connection to a compatible companion. The “R” switch handles the parameter options for Tune, and the ”F” switch is an on/off voice filter control. All of this functionality can be fine-tuned in its final output stage by finding the sweet spot you’re looking for between your wet/dry controls, which is a highly coveted feature on a noisemaker of this caliber.

While its behavior can be unpredictable, more often than not, you can expect the Roger That to throw some kind of tonal tantrum whether you’re sending instruments its way or using it as an instrument itself.