Dunlop MXR MB301 Bass Synth

The MXR Bass Synth transforms your bass into a powerful synth engine, delivering vintage analog-style textures and intergalactic grooves. Co-designed with bassist Ian Martin Allison, this pedal fuses classic funk tones with modern control and flexibility—ideal for players chasing iconic synth bass sounds with fat sub-octaves, expressive envelopes, and rich modulation.
Sound Design Features

• Sub Mix: Controls sub-octave level blended with synth signal
• Mod: Adds movement from gentle modulation to deep pulses
• Envelope: Adjusts filter response from quick attack to slow sweep
• Voice Button: Introduces harmonically tuned oscillators
• Shape Button: Selects triangle, sawtooth, or square waveforms
• Mix, Cutoff, Resonance: Fine-tune blend, frequency, and emphasis

Preset System

• 8 artist-designed presets inspired by classic synth bass tracks
• Presets include references to tones from “Thriller,” “Chameleon,” “Sledgehammer,” and more
• Easy cycling via Preset button

Advanced Functions

• Additional control over oscillator blend, compression, modulation, and tracking
• Stereo output support
• Preset cycling and tempo control via optional external footswitch (MXR Split + Tap, Tap Tempo Switch)
• Compatible with Volume (X)™ Series Pedals for real-time parameter control