Hands-On Review:Line 6 M9 Stompbox Modeler

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Modern and classic stompboxes in a powerful and portable package

By Frank LaMonte,
Line 6

M9 Stompbox Modeler has the brilliant tones, old-school simplicity, and necessary portability to be the all-in-one stompbox solution for every guitarist. It gives you access to over 75 immortal modern and vintage stompbox effects plus a whole lot more.

Over 75 FX

Swirling phasers, tangy choruses, syrupy sweet reverbs, and more: M9 Stompbox Modeler has enough stunning stompbox sounds to spark the gear lust in every guitarist. The comprehensive list of models features all the effects from best-selling Line 6 pedals. Access all the famous sounds from DL4™ Delay Modeler, DM4™ Distortion Modeler, FM4™ Filter Modeler, MM4™ Modulation Modeler, Verbzilla® and Echo Pro™, and more. Get the Velcro®-and battery-free pedalboard experience that delivers the essential colors, depth, and sonic firepower necessary for every gig.


M9 Stompbox Modeler is set up with three FX Units. Each FX Unit can have two stomps at the ready, and any three effects can be played simultaneously. Use one effect at a time, arrange effects in tried-and-true combinations, or create your own original blends! Create six different stompbox arrangements, or pedal board "scenes"—one for your metal band, one for your punk band, one for your Top 40 gig — you get the picture. No more tearing up Velcro® just to switch out one or two pedals. Plus, M9 Stompbox Modeler features MIDI in/out, which allows you to back up your scenes to your computer or control the unit with a MIDI controller.

Stompbox simple

Inspired by the simplicity of classic stompboxes, M9 Stompbox Modeler is incredibly easy to use. Tweak your tones on the fly using the dedicated knobs and easy-to-read LCD window. Just turn the knobs and you’re done—no menus, no saving, no hassles—and your tweaks remain! Even after you power down!

Supah loopah

Complete with a full-featured 28-second looper, M9 Stompbox Modeler allows for extended in-the-moment looping. It has all the necessary looper controls with dedicated footswitches to make looping easy: Record, Record/Overdub, Play/Stop, Play Once, Undo/Redo, Half Speed, and Reverse. (The looper can be used simultaneously with the three FX Units.)

In, out, through

M9 Stompbox Modeler features plenty of ins and outs. 1/4" mono/stereo inputs and outputs (with True Analog Bypass or DSP Bypass) let you put M9 Stompbox Modeler before, after, or in-between your other pedals. Connect expression pedals to the two 1/4" expression pedal jacks to morph smoothly between tones. MIDI in/out, which is perfect for backing up your "scenes," also makes M9 Stompbox Modeler compatible with many popular MIDI control systems.

Total pedalboard experience

M9 Stompbox Modeler is built tank-tough with all-metal construction. From the chassis to the footswitches, it’ll withstand constant stomping. Together with its built-in chromatic tuner, M9 Stompbox Modeler’s generations of sonic treasures and brain-dead simple design will prove indispensable (not to mention highly addictive).