Boss MS-3 Multi-Effects Switcher


91 out of 100. Incorporating 100+ ratings and reviews.

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Boss MS-3 Multi-Effects Switcher
Boss MS-3 Multi-Effects Switcher

Gearank Recommendation

The Boss MS-3 appeared on our recommended list for Multi Effects Pedals from September 2017 until July 2021 when it was out-ranked by other options.


The Boss MS-3 is a multi-effects pedal that is not meant to replace your favorite pedals, rather it is meant to help you make better use of them.

It has more than enough effects (112) for most musical applications, but what makes it special is its old school approach that lets you incorporate pedals and amps into your rig, along with its built-in effects.

First off, it has three effects loops that let you control pedals (or groups of pedals) right from the MS-3. It can also be used as a foot controller for amplifiers, which allows you to change the channel on your favorite amps and employ effects in the comfort of a single compact box.

This makes the MS-3 a very versatile unit, catering to vintage amp/pedal users while adding the comfort of modern digital effects processing and preset control.

Since it has its own noise suppressor and global EQ, you can tame noisy pedals and shape their tone a bit more.

All of these features are on top of the many built-in effects which are Boss quality good by themselves.

The Boss MS-3 is the go-to multi-effects pedal for those who want to enjoy digital control without totally giving up on old school pedals and amps. Get it if you need something to tie your rig together while providing great effects.


  • Effects: 112 (6 Simultaneous)
  • Presets: 200
  • Footswitches: 5
  • Input: 1 x 1/4"
  • Output: 2 x 1/4", 1 x 1/4" (control out), 2 x 1/4" (control in), 6 x 1/4" (3 pedal loops)
  • Extra Features: Tuner, Noise Suppressor, Global EQ
  • MIDI: Out
  • USB: Preset Editor/Update
  • Dimensions: 2.68" x 9.68" x 3.87"
  • Weight: 2.44 lbs.
Although this was previously on our recommended list, there are now more highly rated options available which you can see in our guide to The Best Guitar Multi Effects Pedals / Processors.


About the Author

Alexander BrionesAlexander Briones

I have been writing about and researching music gear for many years, all while serving as a music director at my local church. I engage in guitar playing and singer-songwriter stints, in addition to mentoring young musicians and teaching guitar and bass.