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ARP Little Brother Synthesizer Expander Model 2953

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Description
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.
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Technical Specifications
Type: Analog
Synthesis: Subtractive
Oscillators
Oscillators: 1
Waveforms: Square
Envelopes
Envelopes: 0
Filters
Filters: 0
LFO
LFO: 1
LFO Parameters: Triangle
Polyphony & Tuning
Polyphony: 1
Timbrality: 1
Tuning: Standard
Patches
Patches RAM: 1
Editing: CV
Case
Case: Desktop, Module
Connections
Audio Output Connections: 1/4" Phone Jack, RCA, Mono Out
CV Ports: CV IN, Gate In
Production
Year Released: 1975
Year Discontinued: 1977
Reviews
Repairs and Support
[+] syntaur.com
Pricing
MSRP List Price: $425 - convert
Retail Street Price: $400 - convert
Used Price: $600 - $750 - convert
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