Electro Harmonix Stereo Electric Mistress

An Icon of Modulation, Revisited in Stereo

The Electric Mistress family is among the classic modulation pedals: a flanger with a very expressive character, capable of shifting from a subtle shimmer like chorus to more pronounced, almost "liquid" movements. The Stereo Electric Mistress carries this DNA forward into a modern format, featuring digital processing and especially a stereo approach designed to let your sounds breathe spatially. Its signature feature remains the Filter Matrix : instead of letting the oscillator sweep continuously, you freeze the movement to obtain stable harmonic colors, ideal for textured rhythms, intros, and ambient layers.

For Which Guitarists and Styles?

The EHX Stereo Electric Mistress is aimed both at musicians looking for an inspiring and easy-to-integrate flanger and sound designers who want to sculpt very distinctive modulations. It shines in rock, pop, indie, new wave, and psychedelic styles, but it can also add a wide, moving dimension to more modern sounds (ultra-defined clean tones, delay arpeggios, post-rock, ambient).

In live settings, stereo immediately provides a sense of width (two amps, two monitors, or a mixing console). In the studio, it excels at doubling a guitar without weighing it down, animating a synth, or transforming a simple take into a soundscape. And if you play fingerstyle or with a pick with nuance, its modulation remains very pleasant because it highlights the attack instead of crushing it.

Controls, Modes, and Design: Simple, Effective, Musical

The Stereo Electric Mistress focuses on essentials with controls designed to quickly find "the right movement." The Rate knob controls the modulation speed (and also affects the chorus speed). Two independent depth controls allow precise dosing of each effect: Flanger Depth for the amount of flanger mixed with the dry signal, and Chorus Depth to add more or less width and smoothness.

Its strong point is the ability to use flanger alone, chorus alone, or both together to achieve complex yet always clear modulations. The Filter Matrix mode opens another approach: you stop the sweep and obtain "frozen" flange positions that create fixed timbres, very useful for funky textures, pseudo-rotary effects, or controlled metallic pads. All this is housed in a compact die-cast enclosure, designed for pedalboards, with a buffered bypass that helps maintain clarity when chaining long cables.

Sound

Expect lush and colorful modulation, with the "wavy" character that defines the Mistress series. In chorus mode, the sound is wide, silky, perfect for thickening a clean tone or adding movement to light overdrive. In flanger mode, it ranges from a subtle, very musical harmonic comb to deeper sweeps, with timbres that can become downright hypnotic in stereo.

The chorus + flanger combination is where the pedal truly becomes addictive: you get a "living" stereo image sensation that spreads without drowning the playing. In the lineage of historic Electric Mistress pedals, this type of effect has been appreciated by guitarists known for their textures and modulated sounds (for example, David Gilmour, Andy Summers, Robert Smith, or Billy Corgan ): a good indication of its ability to fit into a mix, from bright clean tones to walls of guitars.

Technical specifications

Effects	Chorus, Flanger	Type	sector
Technology	Digital	Use	electric guitar
Format	Pedal	Color	Black

Mode	Filter Matrix (frozen sweep / "frozen" flange position)	Flanger Depth	flanger depth (effect mix level)
Circuit	digital	Chorus Depth	chorus depth
Bypass	buffered bypass	Chassis	metal die-cast
Audio	stereo	Dimensions	4.75 x 4 x 2.25 inches (approximately 121 x 102 x 57 mm)
Input	6.35mm Jack	Required power supply	9.6V DC
Outputs	Main Out (6.35mm Jack) and Stereo Out (6.35mm Jack)	Adapter provided	200 mA
Stereo outputs	truly independent	Current draw	160 mA
Rate	modulation speed (also affects chorus speed)