Red Panda Radius Ring Modulator and Frequency Shifter Pedal

£339.00

On the menu for January 2026 are the Red Panda Guitar Pedals, freshly added and carefully selected. These New units are available to order online with fast, secure delivery from trusted UK retailers. Read on for full details, specifications, demos, videos, reviews, and the best places to buy the Red Panda Guitar Pedals today.


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Description

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On the menu for January 2026 are the Red Panda Guitar Pedals, freshly added and carefully selected. These New units are available to order online with fast, secure delivery from trusted UK retailers. Read on for full details, specifications, demos, videos, reviews, and the best places to buy the Red Panda Guitar Pedals today.

Radius puts complex harmonic structures, bell-like tones, metallic textures, frequency shifting, soft tremolo, and bubbly phaser sounds at your fingertips.

The Radius is a ring modulator and frequency shifter with pitch tracking and an advanced LFO. It is designed around a novel “eight-quadrant multiplier” algorithm that smoothly transitions from ring modulation to frequency shifting and allows different frequency ratios for the upper and lower tones.

Key Features

  • Stereo Modulation – Modulation in High Definition!
  • Choose Your Favourite Frequency Ratio – Selectable 2X frequency ratios for upper and lower sidebands.
  • Advanced LFO Waveforms – The Radius has an advanced LFO with triangle, square, random waveforms and an eight step sequencer, all of which can be envelope triggered.

Pitch tracking, a push-to-tune footswitch, and picking dynamics make the Radius responsive and predictable on stage.

Oscillation Control

Hold 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 by a ratio (or inverse) for more dynamic sounds. An expression pedal can be assigned to any combination of knobs.

Intelligent Sound Design

Well-spaced controls and stereo input/output make the Radius perfect for sound design, synths, and creative mixing. A full MIDI implementation allows you to sync to MIDI clock, sequence parameter changes, and play the carrier oscillator from a keyboard.

The Radius is a musical ring modulator and frequency shifter that transforms the timbre of your instrument in new ways. With deep features and intuitive control, Radius modernizes classic electronic techniques for the future.

Specifications

  • Three carrier frequency ranges (low, high, quantized)
  • Carrier frequency pitch tracking (monophonic, +/- 100%)
  • Push-to-tune carrier oscillator
  • MIDI-playable carrier oscillator
  • Multi-waveform LFO (triangle, square, random, intelligent random, X mod +/-)
  • Step modulator (1-8 steps), programmable via front panel
  • Tap tempo and MIDI clock sync
  • Envelope follower
  • Envelope-triggered LFO (one-shot ramp, pulse, random, step mod)
  • Presets (4 on board, 100 via MIDI)
  • Expression pedal assignable to any combination of knobs
  • Configurable AUX switch (tap, tune, preset, LFO)
  • USB and TRS MIDI
  • Full MIDI implementation
  • 96 kHz sampling rate
  • +8 dBu max. input level (line level friendly)
  • Web editor with preset upload/download
  • User-installable firmware updates (USB)
  • Designed and assembled in USA
  • Requires a 9V DC 200 mA power supply (not included).

 

Additional information

Weight 2 kg

Brand

Red Panda

Red Panda, based in Canada, is renowned for its innovative and high-quality guitar effects pedals that push the boundaries of sound manipulation. Founded by a team of audio engineers and musicians, the company has become known for its unique approach to digital effects, combining advanced technology with creative sound design.

Notable products from Red Panda include the **Context** reverb, which offers a range of ambient and ethereal sounds, and the **Particle** delay, known for its granular delay effects that can transform sounds in intriguing ways. Their pedals are celebrated for their precision, versatility, and the ability to produce complex, otherworldly textures. Red Panda’s commitment to crafting distinctive and powerful tools makes their pedals a favourite among musicians looking for cutting-edge effects to enhance their sonic palette.

Category

Guitar Pedals

Tags

envelope filter

Expression

Expression pedals allow real-time control over specific parameters on compatible guitar pedals, such as volume, delay time, modulation depth, or filter sweep. Used with an expression input, they let players shape effects dynamically with their foot, adding movement and performance control that cannot be achieved with fixed knob settings.

MIDI

MIDI pedals use the Musical Instrument Digital Interface standard to communicate with other guitar pedals, effects units, and hardware. They allow control over presets, parameters, and switching across multiple devices from a single controller. MIDI integration makes it possible to build complex, synchronised pedal setups while keeping control simple and consistent.

New

This is brand new, fresh in, and a UK warranty is included. New Gear always comes from trusted UK music retailers.

Phaser

A phaser is a type of guitar effects pedal that creates a swirling, sweeping sound by modulating the phase of the audio signal. It works by splitting the incoming signal into two paths, shifting the phase of one path, and then recombining them. This creates peaks and troughs in the frequency spectrum, resulting in a distinctive, “phasing” effect characterized by moving notches in the frequency response.

Here’s how a phaser pedal typically works and some common features:

1. **Rate**: The rate control adjusts the speed at which the phase-shifting effect oscillates. Increasing the rate produces faster modulation, creating a more pronounced swirling effect, while decreasing the rate slows down the modulation for a smoother, more subtle effect.

2. **Depth**: The depth control adjusts the intensity or depth of the phase-shifting effect. Higher depth settings result in more pronounced peaks and troughs in the frequency response, while lower settings produce a more subtle modulation.

3. **Feedback (or Regeneration)**: Some phaser pedals feature a feedback control that determines the amount of modulated signal fed back into the effect. Increasing the feedback creates more pronounced peaks and troughs in the frequency spectrum, resulting in a more intense and resonant phasing effect.

4. **Stages**: Phasers typically have multiple stages (usually four, six, or eight), each of which contributes to the overall phase-shifting effect. More stages generally result in a more complex and textured phasing sound.

5. **Sweep (or Manual)**: The sweep control adjusts the center frequency of the phase-shifting effect. This allows you to focus the phasing effect on specific frequency ranges, altering the tonal character of the modulation.

6. **Resonance (or Feedback)**: Some phaser pedals feature a resonance control that emphasizes the peaks and troughs in the frequency response, creating a more pronounced and resonant effect. This control can add richness and depth to the phasing sound.

Phaser pedals are commonly used in various music genres, including rock, funk, and psychedelic music, to add movement, depth, and texture to guitar tones. They can be used to create swirling, swirling effects on rhythm parts, add dynamics to lead lines, or create atmospheric textures for ambient music. Overall, phaser pedals offer guitarists a versatile tool for shaping their tone and adding expressive modulation effects to their playing.

Pitch

Pitch pedals alter the frequency of your guitar signal, changing the perceived note or adding harmony. They can shift notes up or down by fixed intervals, create harmonies, or produce dive-bomb and whammy-style effects without a tremolo arm. Pitch shifters and harmonisers are great for thickening solos, simulating multiple guitars, or experimenting with creative, otherworldly sounds that expand your tonal range.

Tremolo

A tremolo pedal modulates the volume of your guitar signal up and down in a rhythmic pattern, creating a pulsing or wavering effect that can sound vintage and hypnotic or sharp and choppy depending on the settings. It’s one of the oldest effects in guitar history, famously used on classic amps from the 1950s and ’60s.

Most tremolo pedals let you control the speed, depth, and wave shape, allowing you to go from smooth, subtle swells to intense stuttering tones. It’s a simple but expressive effect that adds movement and character to your sound.