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Kurzweil K2000

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Kurzweil Music Systems released the K2000 music V.A.S.T. Music workstation in 1990. V.A.S.T. stands for variable-architecture synthesis technology. It is variable in that the user can select different signal paths, which contain different DSP functions, for use in creating and shaping a sound. V.A.S.T. also includes an extensive modulation system, similar in concept to that of analog modular synthesizers. A wide array of modulation sources can be assigned to various parameters within a signal path, and modulation sources can be combined to create new modulation sources.

The basic component of a V.A.S.T. program is a "layer". A layer on the K2000 contains a single "algorithm", which contains up to four slots for user-assignable DSP functions. The algorithm assigned to a layer is preceded by several other functions, or "blocks". There is the "keymap" block, which determines which (if any) samples are assigned to the keyboard in the layer. This is succeeded by the "pitch" block, which determines how the "keymap" is pitched across the keyboard. Following the "algorithm" section is an amplifier block (and a dedicated multi-mode envelope to modulate the gain of the sound over time) and, finally, an "output" block that determines which group of outputs (there are four output groups on the rack version, two on the keyboard version) the sound is assigned to and how it is panned between the two outputs in a stereo group.

Many layers can make up a "program", similar to a "patch" on other synthesizers. Within a program, each layer can have independent settings in all of the various blocks, including different algorithms, pan positions, output mappings, etc. Modulation sources can be routed to almost all of these, and can be independently assigned within a layer and between layers. Thus using a particular modulation source in one "block" does not exclude it from being used elsewhere (for instance you could assign keystroke velocity to control, say, filter frequency cutoff and resonance in one layer, while in another it can be assigned to control pitch or pan position). There are 31 algorithms available in the K2000.

Technical Specifications
Type: Digital
Synthesis: ROM, Sampling
Oscillators: 3
Waveforms: Saw Down, Saw Up, Sine, Square, Triangle, Wave Table, White Noise
ROM Size: 8
ROM Resolution: 16 bit, 44.1 kHz
Osc Modulation: After Touch, Continuous Controller, Envelope, Glide / Portamento, Input, Keyboard, Knob, LFO, Mod Wheel, Oscillator, Pedal, Pitch Wheel, Sequencer, Velocity
Sampling: 16 bit, 44.1 kHz, 48 kHz
Envelopes: 3
Evelope Paramerters: Attack, Sustain, Release
Filters: 2
Types: 12dB Slope (2-pole), 18dB Slope, 24dB Slope (4-pole), High Pass, Low Pass, Resonance
Filter Modulation: Breath Controller, Envelope, Input, Keyboard, Knob, LFO, Mod Wheel, Oscillator, Pedal, Pitch Wheel, Portamento, Sequencer
LFO: 2
LFO Parameters: Sample & Hold, Square, Triangle
Polyphony & Tuning
Polyphony: 24
Timbrality: 16
Tuning: Atonal, Micro, Standard
Patches RAM: 199
Patches ROM: 199
Multipatches RAM: 100
Multipatches ROM: 100
Storage: Tape, Hard Drive, Internal
Editing: MIDI, SCSI
30,000 note expandable to 90,000 notes
Case: Keyboard
Keyboard: 61 keys
Controls: Aftertouch, Velocity, Buttons, Mod - Wheel, Pitch -Wheel, Modulation - Audio Input, Pedal - Sustain, Pedal - Volume, Tempo Knob, Sequencer
Display Type: LCD
Display Count H: 320
Display Count V: 64
Dimensions (WxDxH): Width 16.9 in* 43 cm Depth 13.9 in 35.4 cm Height 5.1 in 13 cm
Weight: Weight: 24.65 lb 11.2 kg
Audio Output Connections: 1/4" Phone Jack, Mono Out, Stereo Main, Stereo Headphone
Audio Output Count: 6
Audio Output Notes: 7
Inputs: 2
General MIDI: GS - General Standard, GM - General MIDI, GM2 - General MIDI 2, XG - Extention to General MIDI
Year Released: 1990
Year Discontinued: 2003
Manuals & Documents
Used Price: 200-375 - convert

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