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Red Panda Radius Ring Modulator/Frequency Shifter Pedal , $349.00 - Add to Cart Skip to Product Information

Red Panda Radius Ring Modulator/Frequency Shifter Pedal

Ring Modulator/Frequency Shifter Pedal with Stereo I/O, Pitch Tracking, LFO, Step Modulator, and USB MIDI
Red Panda Radius Ring Modulator/Frequency Shifter Pedal
Red Panda Radius Ring Modulator/Frequency Shifter Pedal

Backordered - More On The Way!

We expect more from Red Panda in just a few weeks. Order today to reserve yours now, risk-free. Estimated September 2026

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Red Panda Radius Ring Modulator/Frequency Shifter Pedal
Backordered - More On The Way!

We expect more from Red Panda in just a few weeks. Order today to reserve yours now, risk-free. Estimated September 2026

Iconic Ring Modulation for the Modern Player

This article was Written By

Our Product Research Team

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Today’s guitar players and synthesists have more sonic options than ever before. Now, the Red Panda Radius ring modulator/frequency shifter pedal offers an updated take on the classic synthesizer effect. This pedal has a new “eight-quadrant multiplier” algorithm that enables the pedal to provide ring modulation that seamlessly transitions to frequency shifting as you go. Pair the eight-quadrant multiplication with spot-on tracking and the versatile LFO, and you’ve got a recipe for sonic success. The Radius offers four onboard preset slots with a total of 100 recallable presets via USB MIDI control. And, because it can handle both line- and instrument-level sources, the Radius can handle guitar, bass, synths, stage pianos, and more. Choose the Red Panda Radius and explore the most modern take on ring modulation yet.

Smoothly transitions from ring modulation to frequency shifting

The secret behind the Radius’ smooth functionality is what Red Panda calls an “eight-quadrant multiplier” algorithm. It seamlessly blends between the ring modulation and frequency shifting, so you can modulate your signal however you want. The algorithm also allows for different frequency ratios for the upper and lower harmonics, opening the door to a world of tonal experimentation. Bell-like brilliance, old-school metallic textures, frequency shifting, gentle tremolo, and bubbly phasing — the Radius pedal can do it all and then some.

Advanced LFO and MIDI control

Aside from the ring mod and frequency shifting, the Radius features an advanced LFO. You get triangle, square, and random waveforms, plus an 8-step sequencer to take your sound to the next level. There’s also an envelope follower to make the pedal ultra-responsive to playing dynamics. What’s more, the Radius offers MIDI control via USB or the TRS jack. With MIDI, you get access to 96 more preset slots for 100 total recallable presets. How’s that for versatile?

Not just for guitar

While the Radius’ pedalboard-friendly footprint is great for guitar players, anyone can use it. Red Panda designed this pedal for use with any signal you can create. It’s compatible with both instrument- and line-level signals, which gives you the freedom to use your Radius pedal with synths, keyboards, and basses. Red Panda also tells Sweetwater that the Radius can handle line-level signals up to a whopping +8dBu. That means you can use the pedal to modify and transform any signal onstage, in the studio, and beyond.

Red Panda Radius Ring Modulator/Frequency Shifter Pedal Features:

  • Transforms the timbre of any signal with classic electronic texture
  • 8-quadrant multiplier algorithm smoothly blends between ring modulation and frequency shifting
  • Stereo I/O offers compatibility with all rigs
  • Stores four presets onboard and up to 100 via MIDI
  • Assignable expression pedal can control any assortment of knobs
  • Web editor enables the user to upload and download presets
  • Compatible with both instrument- and line-level signals

Warranty Info

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Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.