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ARP Little Brother Synthesizer Expander Model 2953

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    The ARP Little Brother Model 2953, produced from 1975 to 1977, is a keyboardless monophonic expander module, sold as an add-on for another ARP synthesizer. It was controlled by connecting the control voltage (CV) output of an ARP synthesizer's keyboard to the Little Brother's CV input.

    The Little Brother had a single voltage controlled oscillator (VCO) with selectable waveforms, and a sub-octave divider that could produce up to three additional tones simultaneously at -1, -2 and -3 octave intervals. It also had an LFO, and a pitch bend/master tuning knob. However, it had no voltage controlled filter (VCF), voltage controlled amplifier (VCA) or envelope generator (EG or ADSR). When used with other ARP synths to "fatten up" their sounds, the Little Brother's audio output had to be patched into the external audio input of its companion synthesizer, essentially adding an extra VCO and LFO to the system.

    It was commonly sold with the Axxe, and was given away for free with the purchase of an Odyssey during a summer 1976 promotion. However, it could be used with any analog synthesizer that had the necessary 1v/octave CV output and external audio input connections.
    Type: Analog
    Synthesis: Subtractive
    Oscillators: 1
    Waveforms: Square
    Envelopes: 0
    Filters: 0
    LFO: 1
    LFO Parameters: Triangle
    Polyphony & Tuning
    Polyphony: 1
    Timbrality: 1
    Tuning: Standard
    Patches RAM: 1
    Editing: CV
    Case: Desktop, Module
    Audio Output Connections: 1/4" Phone Jack, RCA, Mono Out
    CV Ports: CV IN, Gate In
    Year Released: 1975
    Year Discontinued: 1977
    Manuals & Documents
    Repairs and Support
    [+] syntaur.com
    MSRP List Price: $425 - convert
    Retail Street Price: $400 - convert
    Used Price: $600 - $750 - convert
    YouTube Videos
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