Behringer BM-13 Phaser

A Modern Reinterpretation of a Legendary Analog Phaser

The phaser is one of the effects that defined "organic" modulation: a cyclical, fluid movement that instantly adds depth to a funk rhythm, dimension to an arpeggio, or a sense of space to a pad. With the BM-13, Behringer clearly aligns itself with the lineage of high-end analog phasers from the 1990s, claiming an authentic recreation of the Moog MF-103 aesthetic. The goal is simple: to recapture that swirling, expansive, and expressive character while offering controls precise enough to sculpt the phasing down to the millimeter.

Who Is It For, Which Styles, and In What Contexts?

The Behringer BM-13 is aimed at musicians who want to go beyond the "one knob, one sound" phaser. It suits both guitarists and bassists seeking movement without losing the instrument's identity, and it is equally inspiring on keyboards and synths, where its analog sweep can transform a static sound into living material. In live settings, it provides immediate depth and can become a true arrangement tool. In the studio, it lends itself to experimentation: guitars, basses, pads, but also vocals, drums, or effects buses, adding a warm modulation signature and a sense of depth.

Controls, Modes, and Modulation Possibilities

The strength of the BM-13 lies in its "toolbox" approach: it combines classic phaser settings with advanced controls to shape the movement's waveform. You have manual control over sweep, resonance, and frequency, as well as LFO-related parameters to adjust modulation intensity. The LFO can be set very slowly for hypnotic evolutions (down to 0.01 Hz) or sped up for nervous, vibrant textures (up to 250 Hz). A Drive control adds grit and presence, while input and output level controls help optimize the signal and integration into your chain. Finally, the phaser offers 6 or 12-stage modes and a feedback control to emphasize resonance and achieve more pronounced effects, up to near "liquid" sweeps. The mix control allows precise blending of the effect level, and the envelope control opens the door to more dynamic and expressive modulation, responsive to your playing.

Sound Character

The BM-13 delivers analog phasing with a rich character and a three-dimensional sense of movement that can remain subtle or become very prominent depending on feedback and mix settings. At low intensity, it adds slight animation, ideal for thickening a clean tone, softening a funk chorus, or making a chord breathe. Increasing resonance and speed gives the phaser a more pronounced dimension, with a more "vocal" and textured sweep. The 6-stage mode tends to favor a more airy and musical sound, while the 12-stage mode adds extra density, perfect for wide pads, soaring leads, or more experimental effects. The presence of a stereo output enhances the sense of space, especially on keyboards, delays, and reverbs placed after the pedal.

Technical specifications

Effects	Phaser	Use	electric guitar
Technology	Analog	Color	Black
Format	Pedal

Effect	analog phaser	Power	standard 9 V DC, center negative, over 400 mA (power supply not included)
Frequency response	20 Hz to 20 kHz (+0 / -0.3 dB)	Dimensions	85.9 x 147.6 x 196.9 mm
Dynamic range	greater than 73 dB (20 Hz to 20 kHz)	Weight	1,047 g
Signal-to-noise ratio	greater than 63 dB	Consumption	0.75 W
Overall gain	22 dBu