The Behringer MS-1 MK II-BU is the bold blue edition of our hands-on analog monosynth — a true real-analog instrument built for players who want voltage, character, and stage presence right under their fingers. 32 full-size velocity-sensitive keys, a true authentic 3340 VCO with 4 simultaneous waveforms, classic 4-pole analog low-pass filtering, and snappy responsive envelopes deliver the legendary monosynth sound that defined an entire era of bass, lead, acid house, and electronic music production.

Built for the stage, ready for the studio: The integrated live-performance handle and the assignable ribbon controller put real expression right where your hand naturally falls during a set. Pitch bends, filter sweeps, modulation slides, vibrato — all without ever taking your eyes off the audience or the music. The classic external audio input lets you push guitars, drum machines, vocals, or another synth through that legendary analog filter to add instant gritty analog texture and harmonic interest to any source.

Connects to everything in your rig: A comprehensive set of semi-modular patch points, full 5-pin MIDI in and out, USB-MIDI, and CV/Gate connectivity make the MS-1 MK II a flexible centerpiece for modern hybrid rigs, Eurorack modular systems, and DAW-centric setups alike. The bold blue chassis brings serious visual character to any studio or stage — this is a synth meant to be seen as well as heard.

Sound, feel, value: The MS-1 MK II-BU is part of Behringer's ongoing commitment to accessible analog — real circuits, real performance, real value, real fun under your hands. This specific finish is now obsolete; explore current MS-1 MK II availability for active finishes and the latest evolution of accessible analog.