EBS Unichorus Studio Edition REV2

A Chorus That Has Become a Modern Standard for Bassists and Keyboardists

Since the 1970s, modulation has established itself as a simple way to add depth to a clean sound, widen the stereo image, and provide that famous "12-string" effect that makes chords more airy. Within this family, chorus remains a reliable choice, and the EBS UniChorus has gradually carved out a unique place: a modulation pedal designed to preserve the depth of the lows while delivering the movement and width expected from a reference chorus. The Black Label Studio Edition Rev2 takes the concept further, featuring a very quiet analog architecture and a "studio-ready" approach that prioritizes transparency.

Who Is the UniChorus Best Suited For, and In Which Styles Does It Shine?

The EBS UniChorus Studio Edition Rev2 is aimed at musicians seeking a high-end modulation that is simple to dial in and immediately usable. Bassists will find a chorus that thickens without muddiness, perfect for funk, pop, rock, synthwave, or more ambient clean parts. On guitar, it provides elegant width and very musical movement, and on keyboards, it allows pads, EPs, or leads to breathe without losing clarity. Live, its pedal format and true bypass make it a reliable ally; in the studio, its low noise and precise modulation facilitate recording, including in stereo.

Controls, Modes, and Details That Make the Difference

The UniChorus SE Rev2 gets straight to the point: two potentiometers, Depth and Rate, are enough to go from subtle shimmer to broad, confident modulation. The 3-mode selector changes the effect's character: Chorus to thicken and widen, P.M. for a more pronounced pitch modulation (a heavily accented chorus type with more delay), and Flange for a more metallic character focused on mids, close to a flanger. The pedal is fully analog, very quiet, and its true bypass preserves your signal when the effect is off. Inside, a trimpot allows adjustment of the mix between effect signal and dry signal (0 to 100 percent): ideal for precisely tailoring the modulation presence to your instrument, attack, and effects chain.

Sound Character

The UniChorus Studio Edition Rev2's character is primarily transparent and clean: it adds width and movement without masking the attack, which is crucial for bass and keyboards. In Chorus mode, the modulation is smooth and deep, with a very "studio" sense of space. The P.M. mode enhances the doubling sensation and can produce an almost "expanded vibrato" effect depending on the Depth setting. The Flange mode adds a sharper, more expressive texture, perfect for making a riff stand out, animating a pick-driven bass line, or adding depth to a keyboard in a dense mix. The pedal responds well to playing dynamics: the more precise your attack, the clearer and more elegant the modulation remains.

Technical specifications

Effects	Chorus / Flanger / Phaser, Chorus	Number of tracks	3
Technology	Analog	Settings	depth, rate
Format	Pedal	Type	Mains or battery
Inputs	Jack	Use	piano, electric bass, electric guitar
Outputs	2 x jack	Color	Black
True bypass	Yes	Power supply included	No
Display	Led	Power supply	9V battery, 9 - 12V Adapter
Switch	On/Off	Weight	235 g
Simultaneous effects	1	Dimensions (mm)	115 x 70 x 35
Number of effects	3

New Studio Edition Rev2 version	lighter weight and even quieter analog signal processing	Weight (kg)	235 g
3-mode selector	flanger / p.m. / chorus	9 V battery	Not included
Basic parameters with MIDI rate control	flanger 3 ms / chorus 5.5 ms / pitch modulation 10 ms	Consumption	35 mA (max)
Controls	depth, rate