Transform the timbre of your instrument in new, exciting ways!
The Red Panda Radius is a ring modulator and frequency shifter with pitch tracking and an advanced LFO.
It’s 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.
Radius puts bell-like tones, metallic textures, frequency shifting, soft tremolo, and bubbly phaser sounds at your fingertips.
Radius is a musical ring modulator and frequency shifter that transforms the timbre of your instrument in exciting new ways!
Flexible modulation at your fingertips.
Radius’ deep features unlock a spectrum of timbres beyond traditional ring modulation!
Pitch tracking, a push-to-tune footswitch, and picking dynamics make Radius responsive and predictable on stage.
Radius has an advanced LFO with triangle, square, random waveforms and an 8-step sequencer, all of which can be envelope triggered.
The envelope follower makes it responsive to playing dynamics, and two X modulation waveforms create sweeping spectral changes.
Full MIDI implementation allows you to sync to MIDI clock, sequence parameter changes, and play the carrier oscillator from a keyboard.
With such advanced features and intuitive control, Radius modernizes classic electronic techniques for the future!
Red Panda Radius Ring Modulator pedal features:
• Stereo ring modulator and frequency shifter.
• Continuous mix between ring modulation and frequency shifting.
• Selectable 2X frequency ratios for upper and lower sidebands.
• Three carrier frequency ranges (low, high, quantized).
• Carrier frequency pitch tracking (monophonic, +/- 100%).
• Push-to-tune 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 onboard, 100 via MIDI).
• Expression pedal assignable to any combination of knobs.
• Power: 9V DC.
• Current Draw: 200mA.
• Dimensions: 6" X 4" X 3".
Specs
| Type | Ring Modulator |
| Condition | New |
| Power | 9V DC |
| Current Draw | 200mA |
| Power supply included | No |
| Manufacturer Warranty | 1 year |
| Country of Origin | United States |
FREE SHIPPING
- Free shipping within Canada.
- Free shipping to the USA.
- Free shipping on international orders over 520$.
Visit the Shipping page for more.
Fast Delivery
- Canada : 1 - 2 business days
- USA : 1 - 2 business days
- Rest of the world: 3 - 5 business days.
Hassle-Free Returns
You have 45 days to test your new gear. If you choose to return it, we’ll send a full refund. It’s that simple: no bogus restocking fees or charges.
Visit the Returns page for more.
Frequently Asked Questions
-
How can I tell if an item is in stock? +
Each product page shows an availability status.
• In stock items are ready to ship.
• Out of stock items are currently unavailable.
You can enter your email to be notified when an item is back in stock.
-
Where are you located? +
We’re based in Blainville, Quebec, Canada.
-
When will my order ship? +
Orders placed before 12 PM EST ship the same business day.
Tracking details are sent shortly after purchase.
-
How much does shipping cost? +
Most orders ship free to Canada and the US.
International orders ship free on purchases over $520 CAD.
-
Which shipping methods do you use? +
Orders ship via UPS Expedited by default.
For faster delivery, you can select UPS Express Saver at checkout.
-
How long does shipping take? +
Typical delivery times are:
• Canada: 2–3 business days with UPS Expedited, 1 business day with UPS Express Saver
• USA: 2–3 business days with UPS Expedited, 1 business day with UPS Express Saver
• International: 3–5 business days with UPS Expedited, 2–3 business days with UPS Express Saver
-
Which payment methods do you accept? +
We accept all major credit cards and PayPal.
Financing options are available through Klarna and RBC PayPlan.
-
Do Canadian customers pay sales tax? +
Yes. Sales tax is applied based on your province of residence:
• Alberta: 5%
• British Columbia: 5%
• Manitoba: 5%
• New Brunswick: 15%
• Newfoundland and Labrador: 15%
• Northwest Territories: 5%
• Nova Scotia: 14%
• Nunavut: 5%
• Ontario: 13%
• Prince Edward Island: 15%
• Quebec: 14.975%
• Saskatchewan: 5%
• Yukon: 5%
-
Do USA customers pay import fees? +
Yes. Starting August 29, 2025, all US-bound shipments will be subject to duties, taxes, and brokerage fees.
These charges are determined by US Customs and collected by UPS at delivery.
-
Do international customers pay import fees? +
Yes. International shipments may be subject to duties and taxes.
These charges are set by the destination country’s customs authority and collected by UPS at delivery.