BOSS MS-3 EFFECTS SWITCHER

Pedalboard Integration Evolved

The MS-3 Multi Effects Switcher is a revolutionary pedalboard solution. It combines a world-class multi-effects engine and a flexible pedal switcher in one compact, lightweight unit. As a result, you can now create a professional-level effects system without needing a bulky setup.

Anyone—from touring musicians to hobbyists—can build a board that’s portable, powerful, and highly versatile. The MS-3 allows you to run six internal pedal effects simultaneously while integrating up to three of your favorite external pedals.

Maximum Control in a Compact Format

Beyond effects, the MS-3 offers deep control over your entire rig. You can switch amp channels, adjust parameters in real time, and even control MIDI-compatible devices—all from one intuitive unit.

In short, it replaces multiple gear pieces while giving you more control than ever. Whether you’re assembling a fly rig or upgrading your pedalboard, the MS-3 avoids the usual compromises of traditional loop switchers and multi-effects units.

Key Features

• All-in-One Solution
  Create a compact, professional-grade pedalboard using one integrated unit.

• Endless Sound Design
  Run six simultaneous internal effects and connect three external pedals using dedicated loops.

• 112 Built-In Effects
  Includes delays, reverbs, modulation, pitch shifting, overdrives, distortions, and more—for both guitar and bass.

• User-Friendly Interface
  Easily create and edit patches with a backlit LCD, knobs, and dedicated status LEDs.

• Advanced Control Options
  Features assignable controls, wave pedal function, and multiple footswitches for expressive real-time control.

• Full Rig Integration
  Connect amp channel switching, MIDI devices, and additional foot controllers.

• Additional Tools
  Includes a built-in tuner, global EQ, and noise suppressor for stage and studio perfection.

• USB Connectivity
  Use the MS-3 Editor/Librarian software to create, edit, and back up patches on your computer.

Specifications at a Glance

• Modes: Memory mode / Manual mode
• Loops: 3 external pedal loops
• Effects: 112 types; up to 6 simultaneously
• Patches: 200
• Sampling Frequency: 44.1 kHz
• AD/DA Conversion: 24-bit using Roland/BOSS Adaptive Focus method

Input/Output Impedance

• Input: 1 MΩ
• Output: 1 kΩ
• Recommended load: 10 kΩ or greater

Connectivity

• INPUT: 1/4″ phone
• OUTPUT (L/MONO, R): 1/4″ phone
• LOOPS SEND/RETURN (L1–L3): 1/4″ phone
• CTL OUT, CTL IN/EXP: 1/4″ TRS
• MIDI OUT
• USB (Type B)
• DC IN

Controls

• Number switches 1–4
• MEMORY/MANUAL toggle
• ON/OFF, MENU, EDIT, EXIT, ENTER buttons
• 3 control knobs
• Graphic LCD (132 x 32 dots)

Indicators

• Numbered loop/effect indicators
• Memory/Manual indicator
• On/Off LEDs for FX1, MOD1, L1–3, FX2, MOD2, DLY, REV

Included Accessories

• AC adaptor (280mA)
• 4 rubber feet
• Owner’s manual
• Safety leaflet

Optional Accessories (Sold Separately):

• Footswitches: FS-5U, FS-5L, FS-6, FS-7
• Expression Pedals: EV-30, FV-500L, FV-500H, Roland EV-5

Dimensions & Weight

• Width: 275 mm (10-7/8″)
• Depth: 97 mm (3-7/8″)
• Height: 68 mm (2-11/16″)
• Weight: 1.1 kg (2 lbs 7 oz)