Line 6 MM-4 Modulation Modeler - Programmable Chorus / Flanger / Tremolo / Vibe / Rotary / Phaser


  • Mode
  • Speed
  • Depth
  • Tweak
  • Tweez
  • Mix


Line 6

The first great sounding professional guitar effects pedals designed to deliver a wide range of cutting edge and legendary effects tones in a programmable stomp box format.

  • 4 completely programmable presets available at the tap of a toe. No more need for multiple pedals for multiple effects.
  • True Bypass switching, so your direct tone is exactly that; direct from your guitar to your amp.
  • Expression Pedal Input - for real time control of all effect settings. Also the ability to morph between settings lets you create effects not possible with the originals.
  • Nothing but knobs. No menus, no multiple button contortionist gymnastic moves, just twist and go.
  • Stereo inputs and outputs
  • Runs from batteries (Heck, we even include a set) or optional power adapter.

Do you hang out at the airport, just listening to the jet planes woosh-ing overhead? Ever fire up a speaker in a washing machine just to see what it sounds like? Or are you just in love with the sounds of vintage phase shifters, flangers, choruses, and rotary effects? The MM4 Modulation Modeler is the first pedal to give you all those classic sounds, as well as some Line 6 originals in a fully programmable, pro-quality stompbox.

The MM4 offers you 16 of the most popular and sought after modulation effects from the sweet warble of modeled tube bias tremolo, through 2 types of rotary speaker, to the rarest stereo choruses from the '80s. With fully programmable effect parameters and extra control available with the optional EX1 expression pedal, if making things shimmer and shake is your thing, the MM4 may become your favorite tool.

All new Line 6 digital models based on* classic effects including: Uni-Vibe, Phase 90, Leslie 147, CE-1 Chorus, MXR Flanger, the incredibly rare Tri-Stereo Chorus, Mutron Bi-phase, and much more.


  • Digital Effects: 16
  • Factory Presets: 20
  • User Programmable Channels: 4
  • Controls: Effect Selector, Speed, Depth, Tweak, Tweez, Mix
  • Additional Controls: Expression Pedal (optional)
  • Mono/Stereo: Stereo in/ Stereo out
  • Chassis Color: Blue


myFXDB user reviews

1 review, average score of 7.5 / 10

2015-06-13chambs8917.5/10  I love this pedal. Has some really great, useful sounds.Leslie setting sounds nothing like a Leslie. But like all Line 6 products, there are some useless sounds.

Most recent forum threads


Link to this page

Here's some code to post a link with image on forums, eBay, websites,...
BB Code
(sites, eBay,...)

Where to find one?

your browser doesn't support AJAX?

fx pedal stompbox stomp box guitar effects pedal modulation modulate time-based lfo
Syndicate content

Subscribe to our newsletter

Also check out Effects Database's social media accounts: