Behringer

Analog Synthesizer with Dual VCOs, 3 Simultaneous Waveforms, 4-Pole VCF, Extensive Modulation Matrix, 16-Voice Poly Chain and Eurorack Format

An ultra-affordable homage to the iconic Pro-One synthesizer of the 80's, with all the features of the original and then some, the PRO-1 lets you conjure up virtually any sound with incredible finesse and ease. With its pure analog signal path, dual authentic VCOs with 3 selectable waveforms, plus extremely flexible VCF and VCA filters, the PRO-1 is sure to become one of your favourite keyboards. Owning the PRO-1 is like having your own personal time machine, enabling you to embrace the past or make your imprint on the future!

Versatile VCF
The very heart of PRO-1's sound is its classic 4-pole filter, which lets you freely experiment with the Cutoff Frequency, Resonance and Envelope and Keyboard amount, and full complement of ADSR (Attack, Decay, Sustain, Release) controls to dial in the perfect sound. PRO-1's filter Mode switch can be set to either Lo- or Hi-pass for selecting the range of your choice.

Authentic 3340 Oscillator
PRO-1's 3340 Voltage Controlled Oscillators (VCOs) provides your choice of up to 3 simultaneous waveforms (Oscillator A: Sawtooth and Pulse, Oscillator B: Sawtooth, Triangle and Pulse), with a selectable range of 4 octaves. The VCOs can be modulated via the envelope or the low frequency oscillator (LFO). Performance is further enhanced by the Mixer section, which balances the levels of the internal VCOs and noise generator. This amazing flexibility gives you the tools to be your creative best.

Eurorack Ready
Designed to handle the rigors of life on the road or in the studio, your PRO-1 can easily be transferred into a standard Eurorack case for the perfect integration into your existing system.

Features
• Amazing analog synthesizer with dual VCO design allows for amazingly fat music creation
• Authentic reproduction of original circuitry with legendary 3340 and 3320 semiconductors
• Pure analog signal path based on authentic VCO, VCF and VCA designs
• 3 simultaneous oscillator shapes (OSC A: Saw / Pulse, OSC B: Saw / Triangle / Pulse waveforms)
• Classic 4-pole filter design with self-resonance capability
• Powerful modulation matrix for 2 modulation buses for flexible music creation
• Dedicated and analog LFO with simultaneous Sawtooth, Triangle and Square oscillator shapes
• 2 envelope generators for modulation of VCF and VCA
• Easy-to-use 64-note dual sequencer (LFO clock serves as master clock)
• Arpeggiator with 3 patterns for great sound effects
• 16-voice Poly Chain allows combining multiple synthesizers for up to 16 voice polyphony
• Complete Eurorack solution ? main module can be transferred to a standard Eurorack case
• 56 controls give you direct and real-time access to all important parameters
• Audio input for processing external sound sources for enhanced creativity
• External control inputs and outputs (Gate, Filter etc.)
• Comprehensive USB/MIDI implementation with MIDI channel and Voice Priority selection

Quick Specs

Synthesizer Architecture
Number of voices: Monophonic
Type of oscillators: 2 x 3340
Type: Analog
Oscillators: 2 (32.70 Hz to 8372.02 Hz across 4 ranges)
LFO: 1 (0.08 Hz to 30 Hz)
VCF: 1 x 4-pole low pass (24 dB/octave slope)
Envelopes: VCF, VCA

Connectivity
Output: 1/4" TS, unbalanced max. +12.0 dBu
Headphones: 1/8" TRS, unbalanced max. 7.5 mW@32 Ohm
Headphones output impedance: 8 Ω
MIDI In/thru: 2 x 5-pin DIN/ 16 channels
USB (MIDI): USB 2.0, type B

USB
Type: Class compliant USB 2.0, type B
Supported operating systems: Windows 7 or higher/ Mac OS X 10.6.8 or higher

Power Requirements
External power adaptor: 12 V DC
Power consumption: 8 W maximum

Physical
Dimensions (H x W x D): 95 x 424 x 136 mm (3.7 x 16.7 x 5.4")
Weight: 1.8 kg (4.0 lbs)
Eurorack HP: 80