Behringer BM15M Resonance Filter

A "vintage" resonance filter inspired by a 90s classic

The BM15M follows the line of synth-style resonance filters, designed to bring groove, movement, and animated textures to guitar, bass, synth, or even drum machines. Behringer announces an authentic recreation of the Moog MF-105 from the 90s, capturing the spirit of an expressive filter capable of ranging from subtle "auto-wah" to much more pronounced and musical sweeps.

For whom, for which styles, and in what contexts?

The Behringer BM15M targets musicians who want to move beyond "classic" modulations into more lively effects: funk, electro, indie, experimental rock, rhythmic ambient, or any context where a filter that follows the tempo and transforms a simple part into a catchy pattern is sought. It suits both intermediate users (immediate settings) and advanced users (MIDI/CV integration), and naturally finds its place on a pedalboard focused on creativity, in home studios or on stage.

Controls, operation, and modulation possibilities

At the heart of the BM15M is a filter engine designed for evolution: selection of filters and patterns (up to 12 dynamic patterns announced), adjustment of speed (Rate) to shift from tight pulses to slow waves, and envelope control to make the sweep respond to your attack. The Resonance knob boosts the filter peak for more "talking" and sharper sounds, while the Mix allows retaining the dry signal and dosing the effect (ideal for maintaining clarity on chords or preserving the impact of a bass line).

On the control side, the BM15M is built for a modern setup: MIDI (5-pin DIN) to lock the effect to tempo and automate parameters, USB-C for convenient integration with computer environments, and expression pedal input to take real-time control and sculpt the movement like an instrument. It also integrates very well with other pedals (drive, fuzz, delay, reverb) to create complex and evolving textures.

Sound character

The BM15M delivers a typical resonance filter tone: an expressive sweep that can remain subtle (simple harmonic animation) or become decidedly pronounced thanks to resonance, with a more "synth-like" character than a traditional wah. The envelope adds an organic feel: depending on your attack, the filter opens and closes differently, adding depth to staccatos, arpeggios, and sustained notes. By adjusting the Mix, you can keep the foundation of the original sound and add just enough movement to gain presence in a mix, both in studio and live.

Technical specifications

Effects	Effects, Multimode Filter	Type	sector
Technology	Analog	Use	electric guitar
Format	Pedal	Color	Black

Audio input	1 x 6.35mm TS jack, unbalanced	CV input range (Envelope)	0 V to +5 V
Input impedance (audio)	238 kohms	LFO / Sweep control input	1 x 6.35mm TRS jack, unbalanced
Left/mono output	1 x 6.35mm TS jack, unbalanced	Impedance (LFO / Sweep)	22 kohms
Output impedance (L/mono)	1 kohm	CV input range (LFO / Sweep)	0 V to +5 V
Right output	1 x 6.35mm TS jack, unbalanced	MIDI input	2 x 5-pin DIN, 16 channels
Output impedance (R)	1 kohm	USB	1 x USB type C
Tap / Step	1 x 6.35mm TRS jack, balanced	Frequency response	20 Hz to 20 kHz (0 dB to -2 dB)
Input impedance (Tap/Step)	48 kohms	Dynamic range	over 66 dB
Rate control input	1 x 6.35mm TRS jack, unbalanced	Signal-to-noise ratio	over 56 dB
Impedance (Rate)	22 kohms	Overall gain	+16.5 dB
CV input range (Rate)	0 V to +5 V	Dimensions (H x W x D)	85.9 x 147.6 x 196.9 mm
Mix control input	1 x 6.35mm TRS jack, unbalanced	Weight	1,108 g
Impedance (Mix)	22 kohms	Required power supply	9 V DC, center negative
CV input range (Mix)	0 V to +5 V	Current required	over 400 mA
Envelope control input	1 x 6.35mm TRS jack, unbalanced	Power consumption	1.8 W
Impedance (Envelope)	22 kohms