This is the 61-key keyboard version of Dave Smith Instruments PK4 Poly Evolver synth with a one-button-per-function layout. Controls include 78 knobs, 58 switches, backlit wheels, and blinking LFO and blue sequence LEDs. As in the rack version, each voice has 2 analog and 2 digital oscillators. The analog oscillators offer multiple waveshapes with voltage-controlled analog pulse-width modulation, hard syncing, real voltage-controlled lowpass filters, and VCAs on each channel. The digital oscillators select from 96 Prophet-VS and 32 user-loadable (via MIDI) wavetables and have FM and ring modulators. As with original VS, the digital oscillators get trashy as the frequency gets higher.

Other tools and features include a separate glide per oscillator, dual digital 4-pole highpass filters that can be placed before or after the analog electronics, stereo audio inputs, a noise generator, envelope follower and peak detect from the external input for use as a modulation source, 3 snappy ADSRs, and 4 LFOs that are sequencer- and MIDI-syncable.

Additional features of this synth include dual tunable feedback loops, delay with 3 taps, digital distortion, 3 banks of 128 programs for 384 total, a 16 x 4 analog-style sequencer that syncs with MIDI, and extensive modulation options.

Dave Smith Instruments includes a free standalone editor with the PK4 Poly Evolverthat will run on both a PC and a Mac enabling you to edit both programs and combos quickly and easily.

Dave Smith Instruments PK4 Poly Evolver 61-Key Keyboard Features:

• Keyboard version of the Poly Evolver
• 61 keys
• One button per function
• 78 knobs
• 58 switches
• Backlit wheels
• 4 oscillators in total: 2 analog, 2 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 x 12 bits) and 32 user-loadable (via MIDI) Wavetables (128 x 16 bits)
• 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 2 glide modes
• Real voltage-controlled analog lowpass filters - not digital re-creations
• 4-pole/2-pole switchable, fully resonant (in 4-pole mode)
• Separate filters for channels
• Analog Voltage Controlled Amplifiers (VCAs), one for each channel
• Dual digital 4-pole highpass filters (one per channel)
• 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
• 3 snappy ADSR envelopes
• 4 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
• Digital distortion can be placed before or after analog electronics
• 3 banks of 128 programs for 384 total programs - dump to/from MIDI
• 16 x 4 analog-style sequencer - syncs with MIDI
• Extensive modulation capabilities including audio-range and bipolar (+/-) modulation
• Matrix-style front panel with 8 endless-turn rotary encoders
• Internal controllers and DSP chips can be reprogrammed via MIDI
• Universal power supply runs virtually anywhere; 100 - 240 VAC, 50-60 Hz
• Shipped with Euro adapter plugs

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