Electro-Harmonix MOD 11 Modulator Pedal – Used

Quick Product Summary

The Electro-Harmonix MOD 11 packs an extensive collection of modulation effects into a compact pedal, covering traditional tremolo, chorus, vibrato and phaser alongside more adventurous through-zero flanging, pitch modulation and filter effects.

This used example is in Good condition, with cosmetic signs of previous ownership and normal pedalboard use. With 11 main effect types, multiple variations for each, secondary parameters, tap tempo and Momentary Mode, the MOD 11 offers considerably more depth than its straightforward control layout initially suggests.

At A Glance

Feature	Details
Brand	Electro-Harmonix
Model	MOD 11
Effect Type	Multi-Modulation
Condition	Used – Good
Modulation Types	11
Tap Tempo	Yes
Momentary Mode	Yes
External Tap Input	Yes
Audio	Mono
Bypass	Buffered
Power	9V DC
Power Supply	Not Included

What Makes the Electro-Harmonix MOD 11 Special?

11 Modulation Effects in One Pedal

The MOD 11 covers an unusually broad range of modulation sounds:

• Tremolo

• Harmonic Tremolo

• Vibrato

• Uni-Vibe-style modulation

• Chorus

• Rotary

• Flanger

• Through-Zero Flanger

• Phaser

• Modulated Pitch Shifting

• Modulated Filter

Each effect offers additional modes and parameters, allowing the pedal to move well beyond basic preset-style modulation.

Secondary Knob Functions

A Secondary Knob Mode gives the existing controls additional functions, providing deeper adjustment without filling the enclosure with extra knobs.

Depending on the selected effect, these secondary parameters can control features such as waveform shape, envelope response, feedback, wet/dry balance and other effect-specific settings.

Tap Tempo

Modulation speed can be tapped in using the pedal's own footswitch or through a compatible external momentary footswitch connected to the dedicated Tap input.

This is particularly useful for synchronising tremolo, phaser, flanger and other modulation effects with the tempo of a song.

Momentary Mode

Momentary Mode allows the selected modulation effect to be introduced only while the footswitch is held down, making it useful for short accents and transitions without permanently engaging the effect.

Who Is It For?

The Electro-Harmonix MOD 11 is ideal for guitarists who want a broad range of modulation effects without dedicating pedalboard space to multiple individual pedals.

It works particularly well for rock, indie, alternative, ambient, psychedelic, experimental and studio guitar applications, while the more traditional chorus, phaser and tremolo modes make it equally useful for everyday live setups.

Condition Overview

Condition Grade: Good

This Electro-Harmonix MOD 11 is in good used condition, with cosmetic signs of previous ownership and normal pedalboard use.

The pedal is supplied without an external power supply.

Detailed Features & Benefits

Tremolo

The Tremolo setting modulates the volume of the signal for classic pulsing effects. Additional modes allow playing dynamics to influence modulation rate or depth.

Harmonic Tremolo

Harmonic Tremolo separates the signal into high- and low-frequency ranges and alternates between them for a richer, more colourful tremolo effect.

Vibrato

Vibrato modulates pitch rather than volume, producing everything from gentle movement to more obvious warped and detuned textures.

Uni Modulation

The UNI setting pays homage to classic Uni-Vibe-style modulation and includes Chorus and Vibrato variations along with additional overdrive control.

Chorus

The Chorus section covers traditional warbling chorus sounds and includes additional Tri-Chorus and Bass Chorus variations.

Rotary

The Rotary engine simulates a rotating speaker cabinet, with additional control over overdrive and rotation-speed behaviour.

Flanger

The Flanger offers both additive and subtractive responses with multiple LFO shapes and envelope-following possibilities.

Through-Zero Flanging

TZF creates the distinctive effect of the modulated signal passing through the apparent zero-delay point, with additive, subtractive and barber-pole-style variations.

Phaser

The Phaser section provides selectable 4-stage, 6-stage and 8-stage responses along with multiple modulation shapes.

Pitch Modulation

Pitch mode shifts the centre pitch and then modulates around it, providing everything from subtle pitch movement to more experimental stepped effects.

Filter

The Filter section offers low-pass, high-pass and band-pass filtering with modulation and envelope-following options for synth-like tonal movement.

Product Specifications

Specification	Details
Manufacturer	Electro-Harmonix
Model	MOD 11
Effect Type	Digital Multi-Modulation
Number of Main Effects	11
Effects	Tremolo, Harmonic Tremolo, Vibrato, Uni, Chorus, Rotary, Flange, TZF, Phase, Pitch, Filter
Main Controls	Depth, Rate, Volume/Color
Effect Selector	11-Position Rotary Control
Mode Selection	Dedicated Mode Button
Secondary Parameters	Yes
Tap Tempo	Yes
External Tap	Yes
Momentary Mode	Yes
LFO Shape Options	Yes
Envelope-Controlled Modes	Yes
Filter Matrix Function	Yes
Input	1 x 1/4"
Output	1 x 1/4"
Tap Input	1 x 1/4"
Audio	Mono
Input Impedance	1MΩ
Output Impedance	680Ω
Circuit	Digital
Bypass	Buffered Bypass
Current Draw	150mA
External Power	9V DC
Polarity	Centre Negative
Dimensions	Approx. 114 x 70 x 53mm
Year Introduced	2019

Power Requirements

The Electro-Harmonix MOD 11 requires a suitable 9V DC centre-negative power supply capable of providing at least 150mA.

Electro-Harmonix supplies the pedal new with its 9.6V DC 200mA adaptor, and a compatible regulated pedalboard supply with sufficient current capacity can also be used.

No power supply is included with this used pedal.

FAQs

How many effects does the Electro-Harmonix MOD 11 have?

It provides 11 main modulation effect types, with additional modes and secondary parameters available within many of them.

What modulation effects are included?

The MOD 11 includes Tremolo, Harmonic Tremolo, Vibrato, Uni-style modulation, Chorus, Rotary, Flanger, Through-Zero Flanger, Phaser, Pitch modulation and Filter effects.

Does the MOD 11 have chorus?

Yes. Its Chorus section includes standard chorus alongside additional Tri-Chorus and Bass Chorus options.

Does it have tremolo?

Yes. Both conventional Tremolo and Harmonic Tremolo are included.

Can it produce Uni-Vibe-style sounds?

Yes. The UNI mode is designed for classic Uni-Vibe-inspired modulation and provides Chorus and Vibrato variations.

Does it have rotary speaker simulation?

Yes. A dedicated Rotary mode simulates a rotating speaker cabinet and includes additional parameter control.

What is Through-Zero Flanging?

Through-Zero Flanging recreates the effect of two signals crossing through a zero-delay point, producing a deeper and more dramatic sweep than conventional flanging.

Can it be used as a phaser?

Yes. The PHASE mode offers selectable 4-, 6- and 8-stage phaser responses.

Does it have tap tempo?

Yes. Tap tempo can be entered using the onboard footswitch or a compatible external momentary footswitch.

What is Momentary Mode?

Momentary Mode engages the modulation only while the footswitch is being held, making it useful for brief effects and musical accents.

What are the secondary controls?

Secondary Knob Mode gives the main controls additional functions specific to the selected effect, allowing deeper editing without adding more physical knobs.

Does it respond to playing dynamics?

Several modes include envelope-controlled functions, allowing aspects of the modulation to respond to how hard or softly you play.

Is the MOD 11 stereo?

No. The MOD 11 uses a mono input and mono output.

Does it use true bypass?

No. Electro-Harmonix specifies buffered bypass.

What power supply does it require?

It requires 9V DC centre-negative power with at least 150mA available.

Is a power supply included?

No. No power supply is included with this used MOD 11.

What condition is this example in?

This example is graded Good, with cosmetic signs of previous use consistent with a pre-owned effects pedal.

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