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ARP Little Brother

Synthesizer Expander Module

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ARP Little Brother
500.00 street price

The expansion module, designed to function together with the "older brothers". It doesn’t have its own keyboard, VCF, VCA, on board - only one VCO and LFO.

According to the manufacturer's idea, this module should be integrated with, for example, ARP Axxe via the CV interface, and the audio output of the "brother" - connected to an external signal input in Axxe. Thus, the signal goes through further processing (VCF, VCA) thanks to the "big brother".

It would seem that one voltage controlled oscillator can’t give a lot, but there is a special trick: Little Brother uses the method which was inherent in electric organs of that period, and allows you to get several notes from one oscillator at once. But unlike the organs, the module uses a monophonic even method, which allows you to get notes one, two and three octaves below the main one.

Four types of waveform are available:
Saw - "Brass".
Three types of square wave, differing in the duty cycle - "Hollow", "Reed" and "Fuzz".
Thus, the module can supplement the sound with one note simultaneously produced in three different octaves with four types of waves.

In addition to this, the module has its own independent LFO for sculptingg a vibrato effect and a pitch bend controller with a range of adjustment within +/- octave.

Country of origin / production: USA

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More info
Usage area
Sound Module/ Tone Generator 
Usage Design/ Form Factor
Without Keys, Desktop 
Analogue (A) 
Tone Generator / Sound Synthesis
Oscillators overall1
Oscillator Type VCO (Voltage Controlled Oscillator)
Oscillators per voice1
Waveform/ Spectral form (main generator) Pulse Width Modulation (PWM)
Waveform/ Spectral form (main generator) Saw
Programs/ Voices/ Timbres
Built-in controllers
Pitch Bend Wheel 
External controllers
CV in1
Gate in1
CV out1
Gate out1
Audio out
Analogue: 1/8" (3.5mm)1
Audio in
Analog 1/8"1
Voltage 220V
Voltage 110V
Voltage 50-60Hz
Power Supply Built-in, internal
Weight3.1 kg
Case/ body
Production start1975
Production end1977
Production ended

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  Synthesizer Expander Module   900.00 U.S.Dollars

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