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ARP Axxe

Analog Monophonic Synthesizer

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Axxe 1Axxe 2Axxe 3Axxe 4
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ARP Axxe
ARP Axxe
750.00 street price

In 1975 ARP decided to add to the list of their products a portable and (which is important) inexpensive instrument that can satisfy the demands of professional musicians at the same time. The result of the research was Axxe – a monophonic Odyssey. The product became so successful that it was produced for six years, which was a very big period for synth making, usually the synthesizer was produced 2-3 years after which it became obsolete.

The heart of the instrument is a voltage controlled oscillator (VCO) generating a sawtooth and a pulse waveform that could be produced simultaneously. This feature allows you to get a "double VCO feel". There are wide possibilities for modulation of the generator: by LFO (sine, meander), by the sample&hold (S/H), by the envelope generator. The pulse waveform can be PW modulated (PWM) by an LFO signal or an envelope generator.

In the mixer section, you set the levels and mix the signals of the built-in noise source, external audio source and two waveforms generated by the VCO.

The second most important element for synthesizing sound is a voltage controlled filter (VCF). Here the brand used ARP4075 module - very stable in operation, but not the most "bright" filter. It has a four-stage structure with a cutoff slope of 24 dB per octave. For VCF, resonance, cutoff and modulation depth are provided.

The voltage controlled amplifier (VCA) has control of sensitivity envelope generator influence level.
Axxe has only one envelope generator provided. It sports attack, release, sustain time adjustment.

The modulatable low frequency oscillator produces both a sine and a square wave. Among the adjustment controls only frequency setting is provided.

The original ARP Axxe was enclosed into a metal housing with wooden sides, later the housing was replaced with an full-metal one with brighter colors. And the pitch bend was replaced with button pads.
The synthesizer can be heard in the works of 808 State, Jude Allen, Adrian Chase, Rick Davis, Baby Ford, Pascal Gabriel and Herbie Hancock.

Country of origin / production: USA

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More info
Usage area
Usage Design/ Form Factor
With Keys 
Analogue (A) 
Tone Generator / Sound Synthesis
Synthesis Method Analog Subtractive
Oscillator Type VCO (Voltage Controlled Oscillator)
Oscillators per voice1
Waveform/ Spectral form (main generator) Pulse Width Modulation (PWM)
Waveform/ Spectral form (main generator) Saw
Voltage Controlled Filter (VCF) 
Low-pass Filter (LPF) 
Envelope Generator (EG)
Type Synth Action
Number of Keys37
Built-in controllers
Pitch Bend Wheel 
External controllers
CV/ Gate IN 
Audio out
Analogue: 1/4" (6.35mm)2
Audio in
Analog 1/4"1
Voltage 220V
Voltage 110V
Voltage 50-60Hz
Power Supply Built-in, internal
Weight6.4 kg
Case/ body
Production start1975
Production end1981
Production ended

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