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ARP Explorer 1 Synthesizer Keyboard Model 2900

   1 review  -  771 views
    Description
    Synthesizers can generally be classified in one of two ways - preset or variable. While preset models are usually noted for their ease of operation and quickness in changing settings. The variable-performance synthesizers normally permit more flexibility in creating a variety of sounds. The ABP Explorer 1, a unique instrument among synthesizers, combines both preset and variable characteristics into one instrument capable of meeting the demands of live performance while at the same time providing further opportunity to discover and refine electronic sounds and effects that will reflect your own personal taste. Explorer 1 can create traditional instrumental sounds such as flutes, clarinet, and trumpets as well as un-pitched effects like crashing surf, thunder, whistling wind and countless indescribable electronic sounds. In addition, the Explorer l offers a choice of basic wave-forms and pitch ranges which may be combined additive to produce a “heavy” sound that's unique to the Explorer 1.
    Images
    Architecture
    Type: Analog
    Synthesis: Subtractive
    Oscillators: 1
    Waveforms: Pink Noise, Pulse, Saw Up, Square
    Osc Modulation: Envelope, Keyboard, LFO
    Envelopes: 1
    Evelope Paramerters: Attack, Decay, Sustain, Release
    Filters: 1
    Types: 24dB Slope (4-pole), Low Pass, Resonance
    Filter Modulation: Envelope, Keyboard, LFO
    LFO: 1
    LFO Parameters: Triangle, Delay
    Polyphony & Tuning
    Polyphony: 1
    Timbrality: 1
    Tuning: Standard
    Patches
    Patches RAM: 1
    Patches ROM: 8
    Editing: CV
    Case
    Case: Keyboard
    Keyboard: 37 keys, Non-weighted, Plastic
    Controls: Faders, Mod - Wheel
    Connections
    Audio Output Connections: 1/4" Phone Jack, Mono Out
    Audio Output Count: 2
    Audio Output Notes: Hi and Low outs
    CV Ports: CV OUT, Gate In
    Production
    Year Released: 1974
    Year Discontinued: 1978
    Manuals & Documents

    Product Links
    Company Product Sites:
    [+] www.arpexplorer.com
    Pricing
    MSRP List Price: $995 - convert
    Retail Street Price: $900 - convert
    Used Price: $500 - $650 - convert
    Shopping
    Patch Sheet
    YouTube Videos


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lucasasdelli

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I own one of these strange instruments, and I've completely restored and tuned it.

Quite interesting are the VCO, made with the same 4027-1 module used on 2600 (but with a sawtooth derived from a pulse octave cascading instead of the module output), and a 4034 VCF, the transistor ladder Moog clone, subsequently replaced with the 4075 module. Therefore this little preset thing has a powerful structure under the hood, and it is capable to generate interesting sounds using the manual controls.

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