MXR M68 UNI-vibe

A Legendary Vibe, Modernized by MXR

Originally, the Uni-Vibe was designed as a "portable" solution to approximate the feel of a Leslie-style rotating speaker. Quickly, the effect became a signature in its own right, somewhere between phaser and chorus, with that immediately recognizable "liquid" rotation sensation. With the M68 Uni-Vibe, MXR condenses this heritage into a more easily integrated format while preserving the spirit: a hypnotic, thick, and musical modulation.

If you're looking for that psychedelic movement heard throughout rock history, the M68 naturally follows the sounds popularized by guitarists like Jimi Hendrix, David Gilmour, Robin Trower, or Stevie Ray Vaughan, while remaining versatile enough for more modern approaches (this vibe spirit is also found with artists like John Mayer or Gary Clark Jr.).

Who Is the M68 Uni-Vibe For, and Which Styles Does It Shine In?

The MXR M68 is aimed both at musicians discovering the vibe effect and guitarists already equipped but seeking a robust, compact, and quick-to-adjust solution. It's typically the pedal you engage to transform an arpeggio into a moving pad, add depth to a riff, or thicken a lead without falling into a too "bright," 80s-style modulation.

It excels in blues, rock, psychedelic, funk, and even ambient contexts when combined with delay and reverb. Live, its straightforward interface is a real asset; in the studio, it allows you to quickly find the right rotation speed to sync the modulation with the track's tempo.

Controls, Modes, and Design: MXR Efficiency

MXR goes straight to the point with a "plug and play" ergonomics. The Speed knob adjusts the sweep rate: from a slow, floating movement to a more nervous pulse. The Depth controls the modulation amplitude: low for subtle shimmer, high for a "chewy," very expressive vibe. The Level manages overall volume, useful for compensating level differences or slightly pushing the amp during a lead.

The VIBE switch toggles the effect's personality: in Chorus, the dry signal blends with the modulated signal for a wider, more flattering sound; in Vibrato, you get a more tremulous and deep tone where the pitch oscillates more noticeably. Add to that a true bypass and analog design, and you have a pedal that integrates easily into any chain without hassle.

The Sound

The M68 Uni-Vibe delivers that very particular movement: a round, organic, and slightly granular modulation in the best sense, with a more "alive" rotation feel than a classic chorus. In Chorus mode, the sound gains body and depth, perfect for widening chords or adding a halo to a rhythm part. In Vibrato mode, the effect becomes more expressive and daring, ideal for psychedelic passages, disorienting intros, or intentionally unstable textures.

Dynamic-wise, the vibe responds very well to picking attacks: the harder you play, the more present the movement seems. For the most iconic sounds, place it before a fuzz or overdrive to recover that thick, singing swirl; after distortion, you'll get a more "settled," very clean modulation, perfect for sculpting a lead sound in the mix.

Technical specifications

Effects	Chorus / Flanger / Phaser, Chorus	EQ	No
Technology	Analog	Settings	speed, depth, level
Format	Pedal	Type	sector
Inputs	Jack	Use	electric guitar
Outputs	Jack	Color	Black
True bypass	Yes	Power supply included	No
Switch	Vibe	Power supply	9V battery, DC 9 V

Category	chorus	Power	9 V DC, 9 V battery
Expression pedal	no	Power adapter	no
Controls	depth, level, speed	Consumption	5 mA
Modes	Chorus, Vibrato	Required voltage	9 V DC