The Behringer Poly D is an Analog 4-Voice Polyphonic Synthesizer with 37 Full-Size Keys, 4 VCOs, Classic Ladder Filter, LFO, BBD Stereo Chorus, Distortion, 32-Step Sequencer and Arpeggiator. Great care has been taken in designing the POLY D including the true to the original “D Type” circuitry with its 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 the POLY D its ultra-flexible sound shaping capability, which covers everything from super-fat bass and lead tones, stunning effects, progressive organ sounds – and all the way out to the otherworldly sounds of your imagination. The POLY D has four highly-flexible Voltage Controlled Oscillators (VCOs) that provide an incredible range of 5 waveforms for sculpting the perfect sound. Oscillators 1, 2 and 3 options include: triangular; triangular/saw; saw; square; wide pulse; and narrow pulse, while OSC 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’). This amazing flexibility gives you all the tools you need to be your creative best.