MXR M234 Analog Chorus

An Analog Chorus in the Great MXR Tradition

The M234 Analog Chorus embodies MXR's DNA: a robust, straightforward pedal focused on tone. It features the aesthetic of classic analog choruses, with a rich and "plush" movement that adds breadth to chords and a singing depth to melodic lines. Its real strength is delivering that vintage grain while adding tone controls to adapt to any amp and any guitar.

For Which Guitarists and Styles?

This analog chorus pedal suits both beginners looking for a simple chorus to dial in and demanding guitarists seeking a precise tool for studio and stage. It shines on clean and crunch sounds: funk, pop, new wave, alternative rock, modern blues, indie, and even ambient textures when slowing down the RATE and adjusting the DEPTH. In stereo, it becomes an excellent choice for dual-amp rigs and live setups with a widened sound image.

Controls, Stereo Mode, and Key Settings

The M234 offers a comprehensive approach: RATE adjusts the modulation speed, DEPTH the intensity, and LEVEL the overall effect volume. The LOW and HIGH knobs act as frequency cut controls to refine the sound: keep a solid low end for thick rhythms or lighten it for a more airy chorus; tame the highs if your tone gets too bright, or open them up for more presence. The THRU OUTPUT enables stereo operation: handy for achieving a wider spread and a more enveloping sense of movement. The footswitch toggles the effect on/off, with a blue LED for immediate stage visibility.

The Sound

Expect a warm, dense, and musical chorus, typically analog: smooth movement, a natural sense of width, and great responsiveness to playing dynamics. At low DEPTH, it subtly thickens without "drowning" the signal; pushing DEPTH and increasing RATE yields more pronounced textures, ideal for sparkling arpeggios or vibrant leads. The HIGH/LOW settings help maintain balance: a present but controlled chorus that integrates easily into a mix.

Technical specifications

Effects	Chorus / Flanger / Phaser, Chorus	EQ	2 channels
Technology	Analog	Settings	depth, level, treble, bass, rate
Format	Pedal	Use	electric guitar
Inputs	Jack	Color	Blue
Outputs	Jack	Power supply included	No
True bypass	Yes	Power supply	DC 9 V

Input impedance	1 M?	DEPTH	chorus effect intensity
Output impedance	1 k?	Tone controls	Bass 70 Hz to 800 Hz, 12 dB/oct shelf; Treble 660 Hz to flat, 6 dB/oct shelf
Noise level (A-weighted, tone centered, other controls maxed)	effect on -96 dBV; bypass -106 dBV	Input	INPUT
Bypass	buffered	Mono output	Mono OUTPUT
LOW	controls the low-frequency cut level	THRU OUTPUT	activates stereo mode
HIGH	controls the high-frequency cut level	Required voltage	9 volts DC
LEVEL	overall effect volume	Current draw	13 mA
RATE	chorus effect speed