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Yamaha SY55 Advanced Wave Memory Synthesizer

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    AWM2 - Basic Technology Refined for Superior Sound

    The 2nd generation 16-bit Advanced Wave Memory (AWM2) system utilizes wave data digitally at 32 or 48 kHz, 24-bit internal signal processing, and high-resolution 22-bit digital-to-analog converters to reproduce sound that rivals and often surpasses the quality of the finest compact disk players. A versatile digital filter system lets you shape sound in real time for extensive control. Two megabites of sampled waveform ROM offers a choice of 74 individual waveforms built-in.

    AWM2 Wave Cards

    External wave cards provide virtually unlimited potential for expansion.

    Voice Architecture and Complex Envelope Generators

    Each SY55 voice is composed of 1, 2, or 4 elements that can be assigned an AWM2 waveform. Each element has its own complex envelope generators that provide extensive sample layering capability. Each envelope has its own programmable 5-segment amplitude generator. Each element also has a pitch envelope generator and two filter cutoff generators.

    Advanced Digital Filters

    Two advanced digital filters provide dynamic timbre control. One is a low-pass type and the other is switchable for either low-pass or high-pass response. Each filter has its own 6-segment envelope generator that can produce virtually an unlimited range of dynamic filtering patterns. A resonance parameter allows you to produce the distinct musical personality of analog synthesizer type filters. With a 4-element voice with two filters per element you have a total of 8 filters working all at once.

    Extensive Voice Editing Functions

    Extensive voice editing functions give you total control of the volume, note shift, detuning high and low note limits, high and low velocity limits for velocity-switched keyboard dynamics, pan position, LFO modulation, and controller assignments allowing you to shape your sound until it fits perfectly. Editing functions can be accessed either sequentially, or directly via a numeric keypad. Use any of 64 presets in ROM, or create voices from scratch and store them in any of 64 memory locations.

    61 Drum-Set Voices

    Drum-set voices allow 61 different drum and other waveforms to be assigned to different keys. Any waveform can be used in a drum voice, and any drum waveform can be used in normal voice programming.

    8-Track Sequencer

    A sophisticated 8-track sequencer takes full advantage of multi-play mode and drum-set voices. You can record in real-time to capture the spontaneity of a performance, using step-write mode for precisely-timed fast or complex passages, and using the punch-in feature to "fix" a portion of a previously recorded track. Quantization can tighten up loose timing. Sequence data can be stored to external memory cards.

    Superior Playability, Expressive Power, and a Range of Controllers

    An initial touch and after-touch sensitive keyboard, plus standard pitch and modulation wheels provide familiar expression control. You can assign the modulation wheel, breath controller, foot volume control, continuous slider, keyboard aftertouch (or any MIDI controller) to amplitude modulation, pitch modulation, filter cutoff modulation, direct filter cutoff control, envelope generator bias and volume. Velocity switching brings different elements into play depending on how hard you play.

    34 High-Quality Programmable Digital Effects

    Digital signal processing provides ambience-enhancing capabilities built-in with 34 effect programs, including reverb, delay, early reflection, tone control and distortion, all programmable.

    Stereo Output

    Since each element in any voice can be panned to any position in the stereo sound field, you can create true stereo voices that will add a new dimension to your sound. Any of the 61 individual drum sounds in a drum voice can also be placed anywhere in the stereo field as can individual voices in mult-timbre setups.

    Complete MIDI Implementation

    A complete set of MIDI parameters for maximum compatibility and versatility are provided.

    Other Innovative Features

    Job-number function access for easy editing; Data Entry control in addition to increment and decrement keys for fast, precise data entry; 16-character x 2-line backlit LCD display; Master volume control and headphone jack; Built-in demo playback feature.
    Type: Digital
    Synthesis: ROM
    Oscillators: 4
    Waveforms: ROM
    Oscillator Notes:
    Second Generation Advanced Wave Memory
    74 preset waveforms
    61 percussion samples
    2MB ROM sampled waveforms
    Envelopes: 6
    Evelope Paramerters: Delay, Rate 1, Level 1, Rate 2, Level 2, Rate 3, Level 3, Rate 4, Level 4
    Envelope Notes::
    "hld" attack mode for faster response
    4 AWM
    2 Filter
    Filters: 2
    Types: 12dB Slope (2-pole), Band Pass, High Pass, Low Pass, Resonance
    LFO: 1
    LFO Parameters: Sample & Hold, Saw Up, Saw Down, Sine, Square, Triangle, Delay, Phase
    Polyphony & Tuning
    Polyphony: 16
    Timbrality: 16
    Patches RAM: 64 voices, 16 multis
    Patches ROM: 64 voices, 16 multis
    Storage: Internal, RAM Cartridge, ROM Cartridge
    Editing: MIDI
    34 programmable effect programs
    Reverb, delay, early reflection, tone control and distortion
    8,000 notes max
    8 songs
    8 tracks
    Chips and Operating System
    CPU HD637B01Y
    DAC Burr-Brown PCM56P
    Case: Keyboard
    Case Details: 61 non-weighted keys
    Controls: Aftertouch, Mod - Wheel, Pitch -Wheel, Pedal - Sustain, Velocity, Pedal - Volume
    Display Notes: LCD: 16 x 2, Backlit
    Dimensions (WxDxH): W) 911 x (D) 90 x (H) 325 mm (35 7/8 x 3 1/2 x 12 3/4 inches)
    Weight: 9.7 kg (21 lbs 6 oz)
    Audio Output Connections: 1/4" Phone Jack, Stereo Main, Stereo Headphone
    Audio Output Count: 4
    Inputs: Breath Controller
    MIDI Ports: IN, OUT, THRU
    DAC Bits: 16
    DAC Frequency Rate: 44.1
    Power: 120 V AC
    Year Released: 1989
    Manuals & Documents

    Product Links
    Company Product Sites:
    [+] usa.yamaha.com
    MSRP List Price: $1295 - convert
    Retail Street Price: $1100 - convert
    Used Price: $150 - $250 - convert
    YouTube Videos
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