Dunlop MXR Bass Synth Pedal (MB301)

The Dunlop MXR Bass Synth Pedal (MB301) is a powerful bass effects pedal designed to transform your bass guitar into a versatile analog-style synthesizer. Developed in collaboration with renowned bassist Ian Martin Allison, the MB301 delivers rich synth textures, thunderous sub-octave tones, expressive filter sweeps, and lush modulation effects while maintaining exceptional note tracking and sustain. Perfect for funk, rock, pop, electronic music, and experimental performances, this pedal brings iconic vintage synth sounds to your pedalboard.

Featuring intuitive controls for Mix, Sub Mix, Cutoff, Resonance, Envelope, and Modulation, along with selectable Voice and Wave Shape options, the MB301 offers extensive sound-shaping capabilities. It also includes 8 factory presets, stereo output support, expression pedal compatibility, and true bypass switching, making it an ideal choice for live performances and studio recording.

Key Features

• Professional bass synthesizer effects pedal

• Premium analog-style synth tones with excellent tracking

• Legacy sub-octave, envelope filter, and modulation effects

• 8 built-in factory presets

• Selectable Triangle, Sawtooth, and Square waveforms

• Voice control for harmonically rich synth textures

• Stereo output capability

• Expression pedal compatibility for real-time control

• True bypass switching

• Rugged MXR metal housing for stage-ready durability

Specifications

• Model: MB301

• Product Type: Bass Synth Effects Pedal

• Brand: Dunlop MXR

• Inputs: 1 × 1/4" Instrument Input

• Outputs: 1 × TRS Stereo Output

• Control Input: Expression / Tap Input

• Power Supply: 9V DC (Center Negative), 330 mA (Power adapter required; battery operation not supported)

• Construction: Heavy-duty metal chassis

• Application: Live performance, studio recording, and bass effects processing

Designed for bassists, recording artists, session musicians, and live performers, the Dunlop MXR MB301 Bass Synth Pedal combines legendary MXR reliability with modern synth technology, delivering a wide range of expressive, studio-quality bass synth sounds in a compact and road-ready pedal.