Powered by advanced BOSS technology, the ultra-versatile MD-500 delivers nearly any type of modulation effect a musician could want, and then some. Included are 28 different algorithms with intensive programming parameters, offering a nearly limitless sound palette to create with. And with class-defying 32-bit AD/DA, 32-bit floating point processing, and 96 kHz sampling rate throughout, you’ll enjoy pristine sound quality that extends beyond the capabilities of the very best studio hardware.

Effects in the MD-500 include many new Prime types developed with cutting-edge BOSS tech, plus authentic sonic recreations of vintage classics like the CE-1 Chorus Ensemble, Roland Dimension D, ‘70s script phaser, ‘80s tri-chorus, and numerous others. With the ability to use two patches at once with A/B Simul mode, the MD-500 can likely cover all your mod needs with one convenient pedal. And by inserting drive pedals in the MD-500’s flexible external loop, it’s easy to place mod effects before, after, or around the loop as needed for the very best sound.



*For optimal performance, stay up to date with the current MD-500 system software and editor

Download “MD-500 Editor” for Windows/macOS

• Studio-level sound with first-in-class 32-bit AD/DA, 32-bit floating point processing, and 96 kHz sampling rate
• 12 modes and 28 modulation types, all with deep editing parameters
• Classic mod effects and BOSS originals, newly enhanced with cutting-edge technology
• A/B Simul mode for using two patches at once, with your choice of series/parallel connection and mixed or split A/B output
• Insert Loop function allows you to use mod effects before, after, or around drive pedals
• Graphic LCD and intensive real-time control options
• 297 onboard patch memories and hands-on controls
• Selectable buffered-bypass or true-bypass operation
• MIDI I/O for interfacing with MIDI control devices
• USB-MIDI for connecting to the MD-500 Editor/Librarian or a DAW
• Runs on four AA-size batteries or PSA-series AC adapter