Behringer Poly D 4-Voice Polyphonic Synthesizer

The 1970s spawned the first truly portable analog synthesizer, and while it was quickly adopted by lots of renowned musical artists including Jan Hammer, Chick Corea, Rick Wakeman, Jean-Michel Jarre, Isao Tomita and Keith Emerson to name a few, it was somewhat temperamental and very expensive. An ultra-affordable homage to that iconic synthesizer with all the features of the original and then some, Behringer Poly D lets you conjure up virtually any monophonic or polyphonic sound imaginable with incredible finesse and ease. The pure analog signal path is based on authentic VCO, VCF, VCA and ladder filter designs in conjunction with a dedicated and fully analog triangle / square wave LFO.

• Analog synthesizer with quadruple VCO design allows for insanely fat music creation
  
• 4-voice polyphonic/paraphonic design with mono, unison and polyphonic mode
  
• 37 semi-weighted full-size keys with velocity sensitivity
  
• Authentic reproduction of original Minimoog Model D circuitry with matched transistors and JFETs
  
• Pure analog signal path based on authentic VCO, VCF and VCA designs
  
• 5 variable oscillator shapes with variable pulse widths
  
• Classic 24dB ladder filter with resonance
  
• Stereo chorus based on Roland Juno series circuitry
  
• Distortion based on Boss DS-1 circuitry
  
• Easy-to-use voltage-controlled 32-step sequencer with 64 sequence storage locations
  
• Arpeggiator with multiple patterns
  
• Switchable low pass / high pass filter
  
• Dedicated and fully analog triangle/square wave LFO
  
• Noise generator
  
• 84 controls give you direct and realtime access to all important parameters
  
• External audio input for processing external sound sources
  
• Stereo outputs featuring servo-balanced output stages for highest signal integrity
  
• Comprehensive MIDI implementation with MIDI channel and voice priority selection
  
• 3-year manufacturer warranty
  

True to the original
Great care has been taken in designing Poly D, including the true-to-the-original Minimoog Model D circuitry with matched transistors and JFETs, ultra-high precision 0.1% thin film resistors and polyphenylene sulphide capacitors. This highly-focused attention to detail is what gives Poly D its ultra-flexible sound shaping capability, which covers everything from super-fat bass and lead tones to stunning effects.

Three modes to choose from
With Poly D you can get the best of three worlds by switching among monophonic, polyphonic or unison modes. With Poly D set to MONO, you can have the characteristics of a classic monophonic synth with fuller, more expressive solos, bass lines and portamentos. Flipping the switch to POLY allows you to play more than one note at the same time to produce chord harmonies and luscious pads that add depth to your music. UNISON mode thickens up your sound by layering all of Poly D's voices on top of each other, adding more harmonic content and creating a richer sound.

Four VCOs
Poly D has four highly flexible voltage-controlled oscillators that provide 5 waveforms for sculpting the perfect sound. Oscillators 1, 2 and 3 waveform options include triangular, triangular/saw, saw, square, wide pulse and narrow pulse, while Oscillator 4 features triangular, reverse saw, saw, square, wide pulse and narrow pulse. Additionally, all 4 VCOs can be adjusted across an extremely wide 6-octave range (LO, 32', 16', 8', 4' and 2').

24dB ladder filter and VCA
The very heart of Poly D's sound is its highly flexible 24dB ladder filter, which lets you freely experiment with the cutoff frequency, emphasis and contour to dial in the perfect sound. Poly D's FILTER MODE switch can be set to either low pass or high pass for the range of your choice. You can also adjust the attack, decay and sustain envelope controls to affect the cutoff frequency over time.

Controls and connectivity
For those who want the numbers, Poly D has 84 controls, all laid out in a highly-intuitive format that puts the joy back into your music creation. Input and output connections include MIDI in, out and thru over USB or 5-pin DIN, after pressure and velocity outputs with their own dedicated attenuators, internal and external V-trig I/O and external loudness, filter, OSC and modulation source CV inputs.