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Line 6 FM4 Filter Modeler Guitar Effects Pedal  

Product #150385

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Item Note:

This product has been discontinued but may be available as a Open Box item.

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See All Line 6 Wah & Filter Effects Pedals
Line 6

Tone-bending filters and classic synth effects - all in one box!

The Line 6 FM4 Filter Modeler Pedal is a studio-quality, professional effects pedal with 16 models of vintage and monophonic synth effects.

The Mu-tron Bi-Phase; the Korg X911 Guitar Synth-are these rebel fighter ships from The Empire Strikes Back? Or maybe proton thrusters from outtakes of Babylon 5? Nope. These, and the other 13 techy tone temptations loaded into Line 6's galactic-purple FM4 Filter Modeler stompbox, represent the outer limits of guitar filter effects, a territory many consider to be today's most fertile terrain for discovering new sounds, timbres and tone colors.

In looking forward, Line 6 first looked back to the filters, vocoders, and guitar synths that players from Frank Zappa and Ernie Isley to Robert Fripp and Peter Frampton have made synonymous with creative guitar playing. "The Throbber" will have your tone gurgling with synth-approved LFO from four wave shapes, including square or triangle waves; "Tron Up/Tron Down" literally drips with auto-wah style response in either Low-, Band- or High-Pass varieties; "Synth-O-Matic" simulates the notably nasty filter sections and wave shapes of prized vintage synths from the Prophet 600 to the legendary Arp Explorer.

Of course, you already use a filter effect all the time; every Wah-Wah pedal is a variable filter, and the FM4 includes a superb "Q Filter" that allows you find and fix that golden frequency notch, in the same spirit as "parked wah" practitioners like Queen's Brian May and soul superstar Prince. Want to make it a more traditional wah? Just hook up the optional EX-1 expression pedal, and save a "Q Filter" sound to both a low frequency (heel down on the EX-1) and a high frequency (toe down on the EX-1) and you've got a more versatile wah than any off-the-shelf pedal, not to mention a pristine 24-bit signal path, stereo ins and outs, and true bypass switching.

Like all Line 6 stompbox Modelers, the FM4 boasts a simple and sturdy front panel design, with four footswitches for saving and recalling your sounds, and six knobs for selecting models and tweaking parameters, with distinct assignments for each knob depending on the model you've chosen. The Line 6 FM4 is for the true explorer of new sonic galaxies; expect to be surprised, stimulated and encouraged to absolute synth-fulness.

Available Models:
Tron DownTron UpSeekerObi-WahVoice BoxV-TronThrobberSpin CycleComet TrailsSlow FilterOctisynthSynth-O-MaticAttack SynthSynth StringGrowlerQ Filter
* All product names used in this web page are trademarks of their respective owners, which are in no way associated or affiliated with Line 6. These trademarks of other manufacturers are used solely to identify the products of those manufacturers whose tones and sounds were studied during Line 6's sound model development.

  • 16 models of vintage and monophonic synth effects
  • 20 factory presets
  • 4 user-programmable channels
  • Effect Selector, Freq, Q, Speed, Mode, Mix controls
  • Stereo in/out
  • Expression pedal output for optional EX-1 expression pedal

Need to add some excitement to your stale sound? The FM4 is the solution! Order yours now.


FM4 Filter Modeler Guitar Effects Pedal Specifications:

  • 10"W x 2-1/2"H x 6"D
  • 3 lb.
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by PowerReviews
Line 6FM4 Filter Modeler Guitar Effects Pedal

(based on 1 review)

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Reviewed by 1 customer

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(46 of 81 customers found this review helpful)


Versatile, very cool, lots of fun.


from Stockton, CA USA

Comments about Line 6 FM4 Filter Modeler Guitar Effects Pedal:

The FM-4 is awesome! However, this pedal is NOT for everybody. If you are just a straight ahead garage rocker or a blues man, I really don't think this pedal would be well suited for you. It has some great syth sounds and crazy modulation type effects. It's pretty easy to use and has tons of possibilities. If you have the patience, you can spend hours just sitting behind it playing around with the knobs and not get bored. I have to recommend getting the expression pedal with this. It is almost essential and even broadens the scope of possibilities and sounds. I would recommend this pedal to people who like to experiment with their sound and who like experimental music. You almost have to treat this pedal as if it were its own instrument. It will take quite a bit of time to really get to know how to use it effectively, but it is well worth it. If you like strange, spacey, experimental music, you will love using this pedal. It will add so much to a song and give you really colorful layers to your sound if used properly. It's a lot of money to sink into a pedal, so make sure you will like it. Again, this is NOT an effect for everyone. I would recommend listening to the sound bytes and reading reviews about it.

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