The Behringer Pro-1 is an analog semi-modular synthesizer that clones the classic Sequential Circuits Pro-One. It features dual analog oscillators, a classic 4-pole filter, an intuitive hands-on layout, & a gritty, gnarly, aggressive modern character.

Core Specifications & Details

• Oscillators: Two analog VCOs. Oscillator A delivers sawtooth and pulse waves; Oscillator B adds sawtooth, pulse, and triangle waves, plus a low-frequency mode.
• Architecture: Monophonic or 2-voice paraphonic mode, allowing two notes to play simultaneously through the shared filter and envelopes.
• Filter: Authentic 4-pole low-pass filter clone derived from the vintage architecture.
• Envelopes: Two independent ADSR envelope generators for filter and amp control.
• Modulation: Poly-Mod section routing filter envelope and Oscillator B to modulate Oscillator A’s frequency and pulse-width.
• Connectivity: USB/MIDI control, comprehensive CV/Gate patching matrix, and Poly Chain support to link multiple units for expanded polyphony.

Advantages Over Competitors

• Versus Behringer Model D (Minimoog style): The Pro-1 features a sharper, more aggressive tone with extensive modulation routing (Poly-Mod) and a paraphonic mode, whereas the Model D offers a woodier, smoother sound with simpler routing.
• Versus Korg MS-20 / Behringer K-2: The Pro-1 provides a cleaner, punchier 80s synth-pop and industrial character with easier oscillator sync capabilities compared to the raw, wild shrieks of the MS-20 filter.
• Versus Software Emulations (e.g., Arturia or GForce): It supplies real physical knobs ("no-menu workflow") and true analog voltage path clipping at an exceptionally low hardware cost