With the BM-11M Low Pass Filter, Behringer presents a clone of the Moog MF-101 Lowpass Filter from the popular MoogerFooger series.
Basically, this is a decoupling of the famous lowpass filter from the Minimoog, whereby the slope can be switched between 12dB (2 poles) and 24dB (4 poles). The
The envelope follower determines a control voltage from the level differences of the input signal in two speed stages and uses it to modulate the cutoff parameter. This instantly creates the iconic auto-wah sounds and the filter sweeps always fit in rhythmically. The input stage is designed for line and guitar levels and can be overdriven, which in most cases sounds very musical and has a harmonic character.
Some people ask themselves at this point: Why should I hook up a filter box like this to my synths? Because of the funk! The audio input simply distorts more beautifully(!) than most gain stages of conventional mixers. The filter itself has a very familiar character and the envelope follower automatically adjusts the sound changes. Have you ever heard
The connections are the same as on the original: there are four CV/expression inputs for the Cutoff, Mix, Resonance and Amount parameters. This allows the parameters to be controlled via an expression pedal or any control voltages from the modular system. The audio inputs and outputs are mono. The envelope follower isoutput at the ENV OUT and can therefore be used as an additional modulation source for other instruments with a control voltage input. Via the MIDI input, all parameters can be controlled via
