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The Poly Evolver Keyboard has a 5 octave keyboard, 77 endless-turn knobs, and 59 switches. The keyboard is weighted 5 octaves, with velocity and mono aftertouch (pressure). It measures 38.5" wide, 14" deep, and 4" high, and weighs 23 pounds.4 Banks of 128 Programs for 512 total Programs; 3 banks of 128 Combos (384)- dump to/from MIDI The internal controllers and DSP chips can be reprogrammed via MIDI, for easy feature additions Click to see the architecture of one voice Evolver Signal Flow (PDF format) The following specs are for one of the four voices, so multiply everything times 4: .Four oscillators in total: two analog, two digital Analog Oscillator waveshape are Sawtooth, Triangle, Saw-Triangle, and Pulse (with voltage-controlled analog Pulse-Width modulation) Digital Oscillators select from 96 wavetables from the Prophet-VS (128 words x 12 bits), and 32 user-loadable (via MIDI) Wavetables (128 words x 16 bits). The Digital Oscillators get trashy as the frequency gets higher, as with the original VS. Hard Sync on the analog oscillators FM and Ring Mod on the digital oscillators Separate Glide per oscillator, with two glide modes Real voltage-controlled Curtis analog lowpass filters - not digital recreations. 4-pole/2-pole switchable, fully resonant (in 4-pole mode). There are two separate filters, one for the left channel and one for the right for a true stereo signal path. Analog Voltage Controlled Amplifiers (VCA), again one for each channel. Dual digital 4-pole Highpass filters (one per channel); place before or after analog electronics. Stereo audio inputs; Noise generator Envelope Follower and Peak Detect from External Input to use as modulation sources External Input can be used to gate envelopes and/or step the Sequencer Three snappy ADSR envelopes Four LFOs (sync with sequencer and MIDI) Dual (left and right channel) tunable feedback loops; modulate frequency and amount Delay with 3 taps; each with separate time and amount modulation. Syncs to sequencer/MIDI. Normal feedback and additional feedback path through analog filters Distortion! Digital, one for each channel, can be placed before or after analog electronics 16 x 4 Analog-style sequencer - syncs with MIDI Extensive Modulation capabilities, including audio-range modulation. Bipolar (+/-) modulation.
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This product was added to our catalog on 02/26/2008.