Electro Harmonix Mod Rex

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Electro Harmonix Mod Rex

Electro Harmonix

Mod Rex

4.9 Expert Rating

Product Info

Article Number: 449323
Model: Mod Rex
Price: $185.90

* Prices may vary. Check retailer for current pricing and availability.

The Mod Rex is a powerhouse of modulation effects crammed into a relatively compact footprint. It's perfect for players who want a wide range of sounds and the flexibility to create complex, evolving textures—especially those already familiar with EHX's menu-driven interfaces. It’s a great value for a lot of modulation in one pedal.

Product Description

  • Electro Harmonix Mod Rex
  • Effect Pedal for Electric Guitar
  • 4 Independent modulation sections
  • Mod section offers vibrato
  • flanger
  • chorus / phaser
  • Trem section provides a tremolo effect
  • Pan section allows for stereo operation
  • Pan section functions as a further tremolo effect when in mono mode
  • Filter section offers the choice between a low-pass filter
  • high-pass filter and band-pass filter
  • Tempo control provides almost limitless polyrhythmic possibilities
  • Tempo section offers the choice between different note length values
  • Can be controlled externally via MIDI
  • Tap Tempo footswitch
  • Up to 100 presets can be saved
  • 20 Factory presets
  • Connections for instrument (mono / stereo) and expression pedal
  • External footswitch connector / MIDI
  • Stereo output
  • Dimensions: 146 x 121 x 64 mm
  • Power supply included
PROS
  • • Four independent modulation sections offer incredible sonic sculpting potential.
  • • Tempo control provides genuinely useful polyrhythmic possibilities beyond basic tap tempo.
  • • MIDI control unlocks deep preset editing and external synchronization capabilities.
  • • Filter section adds unique tonal shaping beyond standard modulation effects.
CONS
  • • The EHX interface can feel a bit overwhelming for beginners, lots of menus.
  • • The housing, while sturdy, feels a bit plasticky compared to premium stompboxes.
  • • Stereo operation, while present, isn't as expansive as dedicated, higher-end stereo effects.

Product Video

Key Features

Effect Type Chorus/Flanger/Phaser/Tremolo/Filter
Controls Rate, Depth, Resonance, Blend, Filter Frequency, Filter Q, Tempo, Note Length, Preset Select
Bypass Type True Bypass
Stereo Stereo Output
Power Supply 9V DC Power Adapter (Not Included)
Dimensions 146 x 121 x 64 mm

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Frequently Asked Questions

The tempo control allows for far more intricate rhythmic patterns using different note divisions, opening doors to polyrhythms and complex modulation sequences.
Yes, you can assign an expression pedal to control various parameters, though simultaneous control is limited to a single parameter per pedal assignment.
While the MIDI implementation is robust, it requires some menu diving to configure and isn't as plug-and-play as some other MIDI pedals, but the online manual is helpful.

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