Electro-Harmonix Mod 11 Modulator

The Electro-Harmonix Mod 11 Modulator is a compact digital pedal that puts eleven modulation effects in one box, covering ground from everyday chorus and tremolo to more unusual territory like through-zero flanging, rotary speaker simulation and envelope-controlled filter sounds¹². It arrived in 2019 as part of Electro-Harmonix's range of feature-packed compact pedals, sitting alongside the Canyon delay and the Oceans 11 reverb¹².

For a player, the appeal is coverage: instead of separate chorus, phaser, flanger and tremolo pedals, one small box gives you all of those plus less common effects, with tap tempo and a set of hidden parameters reachable through a Secondary Knob Mode¹². Guitar World's modulation pedal buying guide summed up the value proposition: "With its eleven core effects plus secondary functions, you're getting a boatload of sounds for relatively little money"³.

Eleven modulation types in one compact pedal

The Mod 11's eleven modulation types are selected from a single rotary switch, and each type carries two or three modes of its own that modify its behavior¹⁷. Delicious Audio described it at launch as part of "a mini-series of digital pedals with 11 modes," hosted in the regular compact EHX case⁷².

Beyond the eleven front-panel types, Guitar World's launch coverage noted "a host of 'hidden' parameters, accessed via a Secondary Knob Mode," which is where the deeper editing lives⁴. Delicious Audio later characterized the pedal in a synths-and-modulation roundup as "a bread-and-butter, mono option that gives you access to all the modulation effects you can think of," noting it is a mono rather than stereo design⁸.

The controls: type selector, tap tempo and footswitch

The control set is small, which is the point of the format. Guitar World's review listed the full panel as Depth, Rate, Volume/Color, Modulation Type, a Mode button and the bypass footswitch⁷.

Tap tempo is built in and works two ways: tap the pedal's own footswitch, or plug an external momentary footswitch into the TAP IN jack and tap the modulation speed there¹. The footswitch itself offers both momentary and standard latching switching, so you can use the effect in short bursts or leave it engaged⁴.

Where it sits in the EHX compact range

Electro-Harmonix built the Mod 11 on the success of its feature-packed compact pedals, and Guitar World's launch story placed it directly alongside the Canyon delay pedal and the Oceans 11 reverb pedal as the third member of that family². The formula is the same in each case: one effect category, many algorithms, a compact and rugged enclosure, and secondary functions tucked behind the knobs¹².

The Mod 11 shares that enclosure and panel philosophy rather than the preset-and-screen approach of larger EHX workstations like the Ocean Abyss reverb. It is a set-and-go pedal: pick a type, pick a mode, set rate and depth, and play²¹⁷.

How it compares with other multi-modulation pedals

Multi-modulation pedals are an established category. When the Mod 11 launched, Guitar World framed it against "the likes of Mooer's Mod Factory and the Strymon Mobius"²⁴. The Strymon Mobius is the category's larger-scale option: Strymon describes it as giving you "twelve legendary, versatile, and inspirational modulation machines, all in an easy-to-use package"⁹. Where the Mobius is a full-size, twelve-machine preset pedal, the Mod 11 is a compact, mono, eleven-type pedal at a much lower price, with $151 against the Mobius's premium positioning at launch²⁴.

On sound quality, the most direct published comparison comes from guitar.com's review of the Walrus Mako M1 MkII, where reviewer Josh Gardner measured the Mod 11 against that pedal¹⁰:

Josh Gardner, guitar.com¹⁰

That is the trade the Mod 11 asks a player to consider: a reviewer found its sound quality below a dedicated premium modulation pedal, while still calling it pretty good and rich in options¹⁰.

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