Jump to content

Yamaha DX7IIFD Digital Programmable Algorithm Synthesizer

   0 reviews  -  1964 views
    Description
    Three improved "DX7 II" models were released between 1987 and 1989, all of which featured updated internal circuitry and a restyled case. These were the DX7 IID, which improved sound quality from 12-bit to 16-bit, increased the internal patch memory and allowed bi-timbrality; the DX7 IIFD, which was identical to the DX7 IID except that it also had a floppy disk drive; and the DX7S, which had improved sound quality and the updated case, but otherwise had the same essential functionality of the original DX7 and in that sense, was its true successor. Third-party products for the DX7 also flourished in the 1980s, including Grey Matter Response's E! expansion board, which added sequencer functions to the DX7II keyboard, and increased patch memory and a vastly improved MIDI implementation in the original DX7. DX7 IIs could transmit and receive on any one of 16 MIDI channels at a time. The DX7 family remains popular to this day with many recording and performing artists.

    The upgrade to 16-bit digital-to-analog converters helped to solve one of the original DX7's shortcomings: noisy output. The instrument's 12-bit DAC's generated a fair amount of hiss, and some users would put a noise gate in its signal path to quiet the unit when it wasn't playing.

    Yamaha wisely designed the DX7 II series so that voices produced on the original DX7 were 100% compatible with the new "II" models, which allowed users to immediately experience improved sound quality from existing DX7 patches via the increased resolution and fidelity of the new 16-bit system. Further, this meant that DX7 II owners had access to a vast base of thousands of existing DX7 sounds, which amounted to a major selling point for the new units.

    In 1988, in celebration of the company's 100-year anniversary, Yamaha released the DX7 II Centennial. It was a DX7 II FD with a silver case, gold painted buttons and sliders, and 76 glow-in-the-dark keys. Only 100 were made and they were priced at US$3995.

    Features

    Dual and Split Mode

    In Dual and Split Modes, two different voices can be played in unison or on separate parts of the keyboard and output in stereo.
    Stereo Effects

    The Pan parameters not only let the user determine the position of voices in the stereo field according to key touch or when part of the keyboard is played, but also create various special effects such as automatic panning between left and right channels.
    Fractional Scaling

    Operator output level Scaling can now be programmed individually for each group of three keys, giving the user natural keyboard control over timbre and volume.
    Micro Tuning

    Micro Tuning gives the user the possibility of "tempering" the instruments in any conceivable way. Preset tuning variations include Equal, Pure (C major, A minor) and Mean Tone temperaments.
    Unison Key Modes

    In the Unison (mono and poly) Modes, 4 sound generation units are assigned to each key. These can be detuned to achieve a "fat" sound.
    Pitch Bend

    Pitch Bend can be programmed so as to affect only the lowest or highest note of a chord, or notes played, but not their sustained sound. In addition, pitch bend effects can be controlled by aftertouch or breath controller.
    Performance Memories

    Save favorite voice combinations along with pan and various control settings in special "Performance" memory.
    Glissando Pitch

    With the Portamento Step parameter, Glissando Pitch stepping can be regulated from 1 semitone to 1 octave.
    Storage of Voices and Performance Data Groups

    Store 64 voices and 32 "Performance Data Groups" each in the internal memory and optional RAM cartridge memories for hundreds of voice combinations.
    Low Frequency Oscillators (LFO)

    The DX7IID has 16 Low Frequency Oscillators (LFO), one for each voice. In the multiple trigger mode, a totally independent LFO cycle can be started for each note played, making ensemble vibrato and tremolo more realistic.
    Disk Drive as MIDI Date Recorder

    Besides offering 1 Mbyte of memory space (equal to 40 RAM cartridges) for thousands of voices, fractional scaling and other data, the built-in micro floppy disk drive can store data from other MIDI equipment.
    Images
    Architecture
    Type: Digital
    Synthesis: Frequency Modulation
    Oscillators: 6
    Waveforms: Sine
    Envelopes
    Envelopes: 6
    Evelope Paramerters: Rate 1, Level 1, Rate 2, Level 2, Rate 3, Level 3, Rate 4, Level 4
    Filters
    Filters: 0
    LFO
    LFO: 1
    LFO Parameters: Sample & Hold, Saw Up, Sine, Square, Delay, Key Sync
    Polyphony & Tuning
    Polyphony: 16
    Timbrality: 2
    Patches
    Patches RAM: 256
    Patches ROM: 512
    Storage: Tape, Internal, RAM Cartridge, ROM Cartridge
    Editing: MIDI
    Arpeggiator
    E! option added multi-mode Arps
    Sequencer
    E! 8-channel sequencing up to 20,000 notes.
    Case
    Case: Keyboard
    Case Details: 61 semi-weighted keys
    Controls: Aftertouch, Breath, Velocity, Mod - Wheel, Pitch -Wheel, Pedal - Sustain, Pedal - Volume
    Display Notes: LCD: 40 x 2, Backlit, LED 2 x 1
    Dimensions (WxDxH): 999(w) x 85.8(h) x 333.7(d) mm
    Weight: 11.2 kg
    Connections
    Audio Output Connections: 1/4" Phone Jack, Stereo Main, Stereo Headphone
    Audio Output Count: 4
    MIDI Ports: IN, OUT, THRU
    DAC Bits: 15
    DAC Frequency Rate: 44.1
    Power: 120 V 7 watts, 50/60 Hz North America / 220 - 240 V, 50 Hz Europe
    Production
    Year Released: 1987
    Year Discontinued: 1989
    Used By
    Brian Eno, Klaus Schulze, Tangerine Dream, Michael Brook,
    Manuals & Documents

    Product Links
    Company Product Sites:
    [+] en.wikipedia.org
    Pricing
    MSRP List Price: $2495 - convert
    Retail Street Price: $2300 - convert
    Used Price: $200 - $500 - convert
    Shopping
    Advertisments
    YouTube Videos
    References & Sources
    Related Synthesizers
    DX7 (1983)
    DX7IID (1986)
    DX7s (1987)
    TX802 (1987)


User Feedback

Create an account or sign in to leave a review

You need to be a member in order to leave a review

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

There are no reviews to display.


×