MXR MB301 Bass Synth Guitar Pedal

MSRP: $299.00
1 review
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$269.99

Unleash intergalactic low-end creativity with the MXR MB301 Bass Synth a powerful, hands‑on synth engine handcrafted for bassists. Designed alongside tone expert Ian Martin Allison, this pedal delivers thunderous sub‑octave rumble, expressive envelope filtering, lush modulation, and stellar tracking through intuitive controls.


This pedal can not be powered by a 9-volt battery, a Dunlop ECB003 9-volt adapter, or the DC BrickIso-Brick, and Mini Iso-Brick power supply included.

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FREE
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warranty

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Product Manual

Available on backorder

Description
MXR MB301 Bass Synth Guitar Pedal

Elevate Your Bass Tone with the MXR MB301 Bass Synth Pedal

The MXR MB301 Bass Synth Guitar Pedal delivers powerful, analog-style synth tones in a compact, performance-ready format. Designed in collaboration with bassist and tone expert Ian Martin Allison, this pedal is your gateway to iconic synth bass sounds with intuitive controls and studio-grade sound quality.

Whether you're aiming for '80s funk grooves, cinematic sub-bass textures, or modern electronic layers, the MXR MB301 gives you instant access to rich synth tones with hands-on control.

Turn your bass into a filthy funk machine with the MXR Bass Synth. It serves up intergalactic grooves and vintage analog-style vibes with a range of monophonic synth tones that call back to hits from Stevie Wonder, Michael Jackson, Parliament Funkadelic, and more. Designed with low-end professor and tone connoisseur Ian Martin Allison, this powerhouse of a pedal offers thunderous sub-octave, expressive envelope, and lush modulation effects with killer tracking and sustain.

Explore a multidimensional deep dive with MXR MB301 Bass Synth

Bassists find the user-friendly control set as accessible to players with synth experience as it is to those taking their first plunge. Though the sounds the Bass Synth molds may be complex, creating them is fairly straightforward. Use the Shape button to establish the foundational waveform, then adjust the Mod and Envelope knobs to set the amount of modulation present in the sound and the filter response, respectively. Further tweak your tone with help from the Mix, Cutoff, and Resonance controls, where you can blend the dry and wet signals, manage the cutoff frequency, and inject your tone with an extra boost. The MXR Bass Synth is capable of bass sounds that are out of this world, no doubt, but it also provides hours of joyful and surprising sonic experimentation.
MXR MB301 Bass Synth Guitar Pedal
MXR MB301 Bass Synth Guitar Pedal

MXR Bass Synth Features:

  • Transforms your electric bass guitar into a salacious synth machine
  • Designed with champion of the bass guitar Ian Martin Allison
  • 6 control knobs — Mix, Sub Mix, Cutoff, Resonance, Envelope, and Mod — help you dial in the exact synth tone you’re after
  • Achieve more complex tones with additional harmonically tuned oscillators by using the Voice button
  • Select between 3 foundational waveforms — triangle, sawtooth, or square — with the Shape button
  • Choose between 8 onboard presets for inspired synth bass sounds
  • Advanced features include tap/expression control and stereo output mode

Dig Deeper with MXR Bass Innovation

For the true tone explorers and bottom-end fanatics, the MXR MB301 Bass Synth Guitar Pedal goes beyond surface-level sound. Dive into a wide range of advanced parameters including oscillator mix, modulation depth, compression, and tracking style. This pedal is built for players who want total control over their synth sound.

Unlock even more performance features with stereo output mode, external control via the MXR Tap Tempo Switch or Split + Tap, and real-time blending with a Volume(X)™ Series Expression Pedal. Whether on stage or in the studio, you can sculpt complex, layered bass synth tones with ease.

And when you're ready to bring the funk, grime, or futuristic heat—this pedal is built to go there. From pop covers and church worship sets to high-energy tours, the MXR Bass Synth gives you instant, professional-grade synth bass that gets nasty in all the right ways.

Get down. Get dirty. Get deep—with the MXR MB301.

MXR MB301 Bass Synth YouTube Video
Additional information
Weight 1 lbs
Dimensions 8 × 6 × 4 in
Pedal Type

Bass Synth

Analog/Digital

Digital

Effect

Cutoff

,

Envelope

,

Mod

,

Resonance

,

Sub Mix

Inputs

1 x 1/4″

Outputs

1 x 1/4″

Other I/O

1 x 1/4″ Control

Power Source

9V DC Power Supply Included

Manufacturer

Dunlop Manufacturing

Manufacturer Part Number

MB301

Warranty

2 Years

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Performance 5.0
Price 5.0
Sound 5.0
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Shipping & Delivery

SHIPPING & DELIVERY

Octavix Studio, we’re committed to delivering real value with every order. That’s why we offer free shipping on all orders over $25 — whether you're picking up guitar strings, accessories, or pro audio gear. If it’s in stock, it ships fast and free, no hassle. It’s just one more way Octavix Studio makes your shopping experience easier, more reliable, and more affordable.

FREE SHIPPING DETAILS:

  • Free shipping applies to orders over $25 shipped within the contiguous U.S.

  • Orders to Alaska, Hawaii, or international locations may not qualify

  • Purchase orders, special orders, and oversized items are excluded

  • If returned, shipping costs may be deducted from your refund

  • Free shipping cannot be combined with other offers or discounts

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GTIN 710137141643 SKU: MB301 Categories: , Brand: