Red panda Radius Ring Modulator

The Radius is a ring modulator and frequency shifter with pitch tracking and an advanced LFO. It is designed around an innovative "8-quadrant multiplier" algorithm that makes a smooth transition from ring modulation to frequency shifting, and allows different frequency ratios for upper and lower tones. The Radius provides you with complex harmonic structures, bell sounds, metallic textures, frequency shifting, soft tremolo and sparkling phaser sounds.

A ring modulator multiplies 2 signals together to create new frequencies that are the sum and difference of the input frequencies. One signal is your instrument and the other is an internal oscillator. The Radius can double the sum or difference frequency rates and adjust their relative levels, offering sonic timbres beyond traditional ring modulation.

Pitch tracking, a push-to-tune footswitch and playing dynamics make the Radius responsive and predictable on stage. Hold down the left footswitch and play a note to tune the carrier oscillator to that note. Pitch tracking maintains the pitch ratio as you play up and down the scale, or tracks according to a rate (or vice versa) to give more dynamic sounds. An expression pedal can be assigned to any combination of settings.

The Radius features an advanced LFO with triangular, square and random waveforms and an 8-step sequencer, all of which can be triggered by an envelope. Envelope tracking makes it responsive to playing dynamics, and 2 "X" modulation waveforms create sweeping spectral changes.

Full MIDI implementation enables synchronization with MIDI clock, sequencing of parameter changes and playing the carrier oscillator from a keyboard.