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ARP Avatar

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Released: 1977

MSRP: $3000US

Synopsis:

Odyssey2 based guitar synth. Architecture Class: Conventional (subtractive).

Ebay Description:

The ARP Avatar is a desktop monophonic analog guitar synthesizer, featuring dual oscillators (with ring modulation), high pass and resonant 12dB low pass filters, dual ADSR envelopes, portamento, LFO, and S/H. I/O includes main, string, guitar, and synth outputs, filter input, CV/gate/trigger inputs/outputs, standby, portamento, sustain, and filter/pitch pedal inputs, along with ARP Hex guitar pickup input.

Physical

Form Factor	Dimensions	Weight	Audio Input	Audio Output	Communication Port	Control Input	Control Output	Switch Input	Power
desktop	?	?	filter:500mV	main (XLR, 1/4") EAD strings GBA strings mono guitar synth	no	CV:1V/oct gate:8V min trigger:10V (10us) guitar pickup pedal:VCO/VCF	CV:1V/oct gate:10V trigger:10V (10us)	standby portamento sustain	AC

Interface

Compatibility	Multitimbral Memory	Program Memory	External Storage	External Programming	UI Input	UI Output
-	N/A	no	no	no	buttons/sliders	LED

Architecture

Multitimbral	Polyphony	Unison	Architecture
no	1 (2 single VCO)	no	VCO1+VCO2+(noise/ring)->VCF->HPF->VCA

Output

Effects	Pan Modulator	Volume Modulator	Headphone
distortion	no	EGs LFO	no

Control

Arpeggiator	Arpeggiator External	Sequencer	Sequencer Memory	Sequencer External	Continuous	Program Change
no	no	no	N/A	no	no	no

Keyboard

Key Pressure	Chord Memory	External Control	External Sustain	Key Scaling	Velocity Curves
no	no	CV gate trigger	no	no	no

Source

Name	Signal Class	Waveform	Octave Range	Amplitude Modulator	Harmonics Modulator	Pitch Modulator	Wave Assign Modulator
VCO1	analog	pulse saw	0.2Hz-20kHz	no	ring:square PWM:EG1(45%) PWM:LFO(15%)	LFO:1.5oct S/H:2oct EG1:9oct portamento:0.1ms-1.5s/oct pitch-knob:+-1oct	no
VCO2	analog	pulse saw	20Hz-20kHz	no	ring:square PWM:EG1(45%) PWM:LFO(15%)	LFO:1.5oct S/H:2oct EG1:9oct portamento:0.1ms-1.5s/oct pitch-knob:+-1oct	no
Noise	analog	pink-noise white-noise	-	no	no	no	no

Filter

Name	Signal Class	IC	Resonant	Shape	Frequency Modulator	Resonance Modulator	Shape Modulator
VCF	analog	4023	yes	12dB low pass 16Hz-16kHz	EGs LFO S/H pedal	no	no
HPF	analog	passive	no	6dB high pass	no	no	no

Envelope

Name	Level	Rate	Loop	Polarity	Trigger	Level Modulator	Rate Modulator
EG1	sustain	attack:5ms-5s decay:10ms-8s release:15ms-10s	no	no	LFO	no	no
EG2	-	attack:5ms-5s release:10ms-8s	no	no	LFO	no	no

LFO

Name	Waveform	Delay	Polarity	Sync	Delay Modulator	Level Modulator	Rate Modulator
LFO	sine square	no	no		no	no	no
S/H	random (VCO1 saw\|square or VCO2 square\|noise)	no	no	LFO guitar	no	no	no

Conventional Models

Synth Museum

"Synthesizer preservation via research and education."

Avatar

ARP Avatar

Synopsis:

Ebay Description:

Physical

Interface

Architecture

Output

Control

Keyboard

Source

Filter

Envelope

LFO