| Model |
Released |
MSRP |
Synopsis |
Ebay Description |
 |
1971 |
$2600US |
Semi-modular (81 patch points) with speakers. VCOs can be switched from audio to LFO (0.03Hz-30Hz) ranges. |
The ARP 2600 is a semi-modular (81 patch points), 49 key, monophonic (duophonic with 3620 keyboard) analog synthesizer, featuring three oscillators (with LFO ranges and ring modulation), resonant low pass filter, dual ADSR envelopes, envelope follower, lag processor, dual mixer/inverters, portamento, and S/H. |
 |
1972 |
$1550US |
Simplified 2600 with original 2 pole filter (model 2800, either white/black or black/gold color schemes). |
The ARP Odyssey is a 37 key, monophonic analog synthesizer, featuring dual oscillators (with ring modulation), high pass and resonant 12dB low pass filters, dual ADSR envelopes, portamento, LFO and S/H. |
 |
1974 |
$1700US |
Filter replaced with 4 pole and CV I/O added. Models 2810-2813 have a black/gold color scheme, either pitch bend knob or PPC buttons, and wrap around vinyl bottom cover. Models 2820-2823 have a black/orange color scheme, either PPC buttons, and steel chassis with leather endblocks. |
The ARP Odyssey2 is a 37 key, monophonic analog synthesizer, featuring dual oscillators (with ring modulation), high pass and resonant 24dB low pass filters, dual ADSR envelopes, LFO, S/H, portamento, and CV/Gate inputs/outputs. |
 |
1975 |
$780US |
Simplified single oscillator monosynth |
The ARP Axxe is a 37 key, monophonic analog synthesizer, featuring a resonant 24dB low pass filter, ADSR envelope, LFO, portamento, and CV/Gate/Trigger inputs/outputs. |
 |
1976 |
$2450US |
Ensemble with monophonic (preset volume envelope) bass and "polyphonic" (divided oscillator) string and synth engines. Bass shares string and synth signal paths. |
The ARP Omni is a 49 key analog ensemble synthesizer, featuring monophonic bass, polyphonic string and synth sections, with dedicated outputs and chorus. Poly Synth section features a 24dB low pass filter and envelope. String section features an attack and release controls. |
 |
1977 |
$2450US |
Updated Omni, adding "staccato" preset envelope to Bass, single triggering. Bass has a dedicated signal path (vs. routing through string and synth signal path). |
The ARP Omni is a 49 key analog ensemble synthesizer, featuring monophonic bass, polyphonic string and synth sections, with dedicated outputs and chorus. Poly Synth section features a 24dB low pass filter and envelope. String section features an attack and release controls. |
 |
1977 |
$3000US |
Odyssey2 based guitar synth. |
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. |
 |
1978 |
$790US |
Simplified dual oscillator monosynth |
The ARP Solus is a 37 key, monophonic analog synthesizer, featuring dual oscillators (with ring modulation and sync), resonant 24dB low pass filter, ADSR envelope, LFO, portamento, and CV/Gate/Trigger inputs/outputs. |
 |
1978 |
$3700US |
Ensemble synth with 4 synth engines (combination of Solus and Omni) |
The ARP Quadra is a 61 key (pressure sensitive), analog ensemble synthesizer, featuring monophonic bass, duophonic Lead, polyphonic string and synth sections, with dedicated outputs. Bass, Lead, and Poly Synth sections feature 24dB low pass filters and envelopes. String section features an amplifier envelope. Lead section features an LFO. Bass and Lead sections feature CV/Gate/Trigger inputs/outputs. String and Bass sections also feature chorus. |
 |
1979 |
$1350US |
Rebadged Siel Orchestra ensemble synth with brass, piano, reed, and string sections (only brass is editable). |
The ARP Quartet is a 49 key analog ensemble synthesizer, featuring brass (trumpet/trombone), string (cello/violin), reed (organ/celeste), piano (piano/honky tonk) sections, with vibrato. The Brass and Piano/Reed sections have a variable attack, while the string section has a variable release. The Brass section also has "brilliance" control. |
