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 ARP Quadra Analog Synthesizer + simple sequencer

ARP Quadra synthesizer
click image to enlarge - Bild klicken zum vergroessern
other ARP gear..
Built 1978
Type: analog
Hybrid: no
61 Voice / Stimmen
4x Multitimbral
small Memory / Speicher
Value / Wert in 2017 ca. 400 (-)
Synthesis: subtractive

OSC Features Lead:2 VCOs, Bass:1 VCO, Rest: divider
Wave Shapes saw square
5 OSCs
4 Filter lpf reso 1-4 Pole
1 LFOs square real: s+h to smoothen the wave
3 Envelope Generators ADR +?

CV GATE Control / Triggering
0 Keys with aftertouch

Arpeggiator no
Sequencer simple sequencer
(ID 171)
  deutsch - german
ABOUT kind of 70ies Workstation with 4 Sections: Bass (mono), Lead (duophonic), String and Poly, of course it's a bit reduced to a minimum but just think , when this thing was made!
ABOUT Eine Art Workstation mit 4 Sektionen: Bass (monophon), Poly, Lead (duophon) und String (polyphon). Natürlich sind die Sektionen rel. reduziert.
DETAILS lead has s+h!! 4x CV. not bad for a combination "multi" synth.
DETAILS lead hat sogar s+h, 4x CV und für eine Kombi nicht übel..
SOUND allrounder, something like axxe and solus + string/poly in one box, so it's simple leads and poly pads and simple basses
SOUND allrounder, ein wenig wie axxe und solus plus string/poly synth in einem, eher simplere Sounds, die aber nicht schlecht klingen..

ARP known or written as Alan R. Pearlman formerly Tonus Inc.

The second best known synth company in the early 70ies. Alan R.Pearlman founded the Tonus Inc in the US and later changed to ARP. they where the big ones beside Moog until the polyphonic synths came. the Odyssey and ARP2600 were a good addition to the Moogs and sounded less "typical moog". After the hard struggle making a guitar synth (the avatar sold about 300 times) they changed to a very innovative new synth, the Chroma but closed their doors in the early/mid 80ies and sold it to CBS (which was sold to Rhodes/Fender).

ARP Trigger info: gate pulse in/out 8-10V GROUND to positive.
EDP gate pulse out: 'S-Trig' (like moog and some korgs) and 9V GROUND to positive.


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