MXR Bass Synth

  • MXR Bass Synth - front
  • MXR Bass Synth - back
  • MXR Bass Synth side
  • MXR Bass Synth - left side
  • MXR Bass Synth - bottom
  • MXR Bass Synth - top
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$332.50excluding VAT
More on the way, available to order
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This item has been ordered from our supplier, and we are currently awaiting delivery.

We will dispatch this product to you as soon as it is received from our supplier.

"Estimated delivery to you" is our estimate of when we will be able to deliver the product to you, based on our supplier's normal delivery timescales. If we become aware it is going to take significantly longer than normal to deliver this item, we will let you know, otherwise, we will advise by email or text message when the item has been dispatched from our distribution centre.

Estimated delivery: 4th - 6th November
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2-year warranty & 30-day money-back guarantee included

2-year warranty & 30-day money-back guarantee included
You can purchase from Gear4music with complete confidence and peace of mind. All of our products are new unless stated and come with a 30-day money-back guarantee and a 2-year warranty as standard.

Once the product is delivered, you'll have 30 days to decide that you definitely want to keep it. If you decide it's not suitable, you can return it to us for an exchange or a refund, providing the product is in 'as new' condition and in its original packaging.

We do everything we can to make sure the right item reaches you in perfect condition. If your order arrives damaged, or is incorrect, let us know within 14 days of receiving it and we'll arrange for a free collection.

If your goods develop a fault within the warranty period, we'll quickly repair or replace the item for you. If the fault occurs within the first 180 days of your ownership, we'll collect the goods and deliver them back to you free of charge.

We're unable to accept returns of any custom-made items designed to work together as a unique package. Some items are only eligible for the money-back guarantee if they are returned to us unused and sealed in the original packaging.

For full information on our returns policy, please refer to our returns and refunds information page.

If you decide your order isn't suitable for any reason you can return it - just let us know within 30 days of receiving it. Please keep hold of all the original packaging until you're sure you want to keep the order.

Eligibility for Money Back Guarantee

Important: For hygiene and software licensing reasons, some items are only eligible for our Money Back Guarantee if they are returned to us unused and sealed in the original packaging with all software still "unregistered." Details of exclusions are shown within the product descriptions. Products include:
- Monitors and Headphones
- Earplugs and Ear Protection
- Reeds and mouthpieces for woodwind and brass instruments
- Mouth and Lip-Care Products
- CDs, DVDs and Software

We can collect your return for a small fee, or you can send it back to us yourself. The collection fee can be found in the returns information on each product's page on Gear4music.

In the unlikely event that any item in this order is faulty, damaged or incorrect on receipt, notify us within 14 days and we'll arrange a free collection.

When returning an order please ensure products are appropriately packaged and protected, to prevent them from getting damaged.

Summary of returns policies and timescales

This table provides an overview of your statutory consumer rights, compared with our standard returns policy and optional extended money back guarantee and warranty.

UK & Europe EU Standard Gear4music Standard Gear4music Optional
Return Period 14 days 30 days up to 180 days
Standard delivery charges refunded? Yes Yes Yes, up to 30 days
Upgraded delivery charges refunded? Standard costs only Standard costs only Standard costs only
Free collection on cancellation No No Yes, up to 30 days
Free collection if defective, delivered damaged or incorrect item Yes, within 14 days Yes, within 14 days Yes, within 30 days

We are unable to accept returns of any custom made items designed to work together as a unique package and some items are only eligible for money back guarantee if they are returned to us unused and sealed in the original packaging. For full information on our returns policy, please refer to our returns and refunds information guide.

Key Features

  • Vintage synth bass pedal
  • Harmonic oscillators expand tonal depth and layering
  • Envelope and modulation shaping lets you sculpt dynamic filter responses
  • Eight presets give instant access to iconic synth bass sounds

MXR Bass Synth Overview

The MXR Bass Synth is a funk-fuelled effects pedal that transforms your bass into a monophonic synth machine. Designed with Ian Martin Allison, it delivers thick sub-octaves, expressive envelopes, and lush modulation for vintage-style tones that channel everything from Stevie Wonder to Nine Inch Nails.


With eight presets, three selectable waveforms, and additional harmonic oscillators, you can lock into iconic synth textures instantly or dive deep with full control over filter, modulation, and tracking. It's built to inspire groove-driven creativity, perfect for hitting the stage or in the studio.

Product Ref: 337246

Full Description

View Full Description

Vintage synth tones with serious attitude

The MXR Bass Synth is packed with rich, analogue-style monophonic synth sounds that bring the vibe of classic funk, soul, and electro right to your pedalboard. With tones inspired by legends like Stevie Wonder, Parliament Funkadelic, and Michael Jackson, it's perfect for recreating retro grooves or crafting your own futuristic basslines.

Designed with Ian Martin Allison

Created in collaboration with acclaimed bassist Ian Martin Allison, this pedal is built for serious tone shaping. From thunderous sub-octaves to expressive filter sweeps and lush modulation, it delivers performance-ready sound and feel. The eight custom presets are designed to give you instant access to studio-quality synth bass magic.

Customise your tone with deep control

You get full creative control with Mix, Sub Mix, Cutoff, Resonance, Mod, and Envelope knobs, as well as Voice and Shape buttons for selecting oscillators and waveforms. It's easy to sculpt your ideal synth voice, perfect if you want smooth triangle warmth or aggressive sawtooth growl.

Performance features for flexible setup

Built with modern versatility in mind, the MXR Bass Synth supports expression and tap tempo control, stereo output, and alternate tracking modes for 4-string, 5-string, or standard guitar. You can save presets, scroll through them live, and blend dry and wet signals for total command over your sound.

Specifications

  • Product Name: MXR Bass Synth
  • Product Code: MXR-EFX-MB301
  • Input: 1 x 1/4" TRS (mono signal on tip)
  • Output: 1 x 1/4" TRS (stereo capable), 1 x 1/4" CTR jack (stereo or control)
  • Power: 9V DC centre-negative, 300 mA minimum
  • Controls: Mix, Sub Mix, Cutoff, Resonance, Envelope, Mod
  • Buttons: Voice, Shape, Preset
  • Waveforms: Triangle, Sawtooth, Square
  • Presets: 8 user-selectable, plus live mode
  • Bypass Modes: True bypass (mono), Buffered (wet/dry, stereo)
  • Extra Features: Expression pedal input, external preset switching, secondary parameter editing
  • Designed with: Ian Martin Allison

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