|| Poly Evolver comes in two versions, the keyboard and the rack. They both have 4 voices, each voice a complete Evolver, which not only provides backwards compatability with the monophonic Evolvers, but also allows a number of cool features to play with.
Each voice still has its own sequencer. This allows some great wave-sequencing applications by gating sequences polyphonically from the keyboard. Each voice also has its own effects, such as feedback, distortion, and 3-tap delay with 2 feedback paths, which enables completely independent processing of each voice for a super thick sound.
The stereo audio inputs go to all four voices, each of which can select to process or ignore the external signals, so you can do quad parallel processing of any audio source. Or, since there are stereo outputs on each of the four voices, you can route the output of one voice to the input of another voice for some interesting effects.
> tech specs
5 octave keyboard,
77 endless-turn knobs,
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.
The Poly Evolver Rack is a 1U 19" rack,
fully programmable from the front panel.
It also comes with a free Mac/PC editor.
It measures 19" wide, 9" deep, and 1.75" high, and weighs 6 pounds.
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;
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
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.
|| > interesting links
manufacturer's web site