Arp Quadra Vst Download

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VST 4 FREE - Free Audio Plug-ins and Archives. Win 32 VST (2.3 Mb). Hey, Synthscience how about creating an emulation of a Arp Quadra. Free ARP Pro-Soloist Synthesizer VST EmulationPro SoloVs by AM Music TechnologyLink:

ManufacturerARP Instruments, Inc.
Dates1978 - 1981
Technical specifications
Polyphony1 (Bass), 2 (Lead), All (String, Polysynth)
Oscillator4 (2/Lead, 1/Poly+String, 1/Bass)
LFOTriangle, Square
Synthesis type
AttenuatorDecay (Bass), AR (String), ADSR (Poly), ADSASR (Lead)
Storage memoryPanel Switch state, Octave, Osc. Interval
Effects1 (Stereo Phase Shifter)
Keyboard61-key synth-action with Channel Aftertouch (Lead only)
Left-hand controlPortamento VCO1, Portamento VCO2
External controlCV/Gate

The ARP Quadra was a 61 key analogsynthesizer produced by ARP Instruments, Inc. from 1978 to 1981. The machine combined pre-existing products: the Omni, Odyssey, a Solina-esque string synthesizer unit, a phaser and a divide-down organ with ADSR envelope, and a 4075 24 db low pass filter into one box. It has four sections. Bass is on the bottom two octaves, has two unison bass circuits (electric and string), with AR and a single pole low pass filter and a related AD envelope for cutoff. A string section is similar to the ARP Omni. Poly Synth, and a two voice Lead Synth similar to the Odyssey and a five way mixer with four unit outputs, a stereo pair, a line mono and an XLR out.

There are 16 memory locations, but these do not provide storage of slider settings. The synthesizer's 8048-based microcontroller uses battery-backed CMOS SRAM storage[1] to store and recall 16 sets of on/off decisions about which waveforms and modulations are turned on in each of the four sections, and lead intervals. Using LEDs the player is visually directed to the sliders critical to the sound selected but their settings are not updated. This necessary tweaking and fine tuning is the weakness of the Quadra.

Like the MoogPolymoog keyboard, the Quadra was not a true polyphonic. It used divide-down circuits for the Omni-style string section, including ADSR, LFO, filter and VCAs for the Polyphonic Synth section. Both Polyphonic Synth and string sections share the hollow wave button which changes waveforms for both sections.


It has a simple arpeggiator for the lead section and memorizes intervals between the two lead VCOs. Vibrato, LFO and a fast square wave trill can be added to the arpeggiation. There are the two independent portamento rates for each VCO, whether locked together or in interval mode. This is useful in either multiple or single trigger mode.

The top three octaves of the keyboard have a mechanical touch sensor that can either pitch bend or impact brilliance and filter. Unique is the flat pedal feature which allows pedaling to dip individual notes and chords a semitone below so they rise to pitch with the envelope’s attack.

Extensive CV/Gate facilities allow two external sequencers to independently control both the bass and the lead. It is capable of four independent outs, stereo out, mono, and mono XLR but hidden in the quad outs is TRS facility for processing and returning effects on individual parts of the four sections to be recombined with external audio at a built-in mixer, which includes an internal compressor circuit. Like all ARP synthesizers of this series (2800) its true character opens up with selective use of the optional foot pedals.

Arp Quadra Vst Download Crack

The Quadra uses the typical ARP orange and black color scheme of the company's later years including the orange leather end pieces and the clean XLR out for DI console recording.

Notable users[edit]

Notable users of the ARP Quadra include:

  • Joe Zawinul of Weather Report on album 8:30 track 8:30 [2]
  • Tony Banks of Genesis.[3] First appeared in his Genesis work in 1980, notably in the songs Behind the Lines, Abacab and Mama
  • Kerry Livgren of Kansas
  • Rick Wright and David Gilmour of Pink Floyd[4]
  • Rayborn Huff of David and the Giants


  1. ^'ARP Quadra Service Manual'. Retrieved 2016-10-08.
  2. ^text., website, including all information and images, is copyrighted as a collective work and is the property of, Inc. This copyright does not supersede any copyrights that may exist for previously copyrighted images and. ' - ARP : Quadra'. Retrieved 2018-08-03.
  3. ^'ARP Quadra: Part 1 '. Retrieved 2018-08-03.
  4. ^'ARP Quadra: Part 1 '. Retrieved 2018-08-03.

External links[edit]

Retrieved from ''

We have searched on all the web for free VST emulation of the Arp 2600 synth :
unfortunately, there’s really only one. The good news is that it’s a very good emu!
**edit **: une fois n’est pas coutume we have not searched deep enough ! Thanks to BlackWinny (see the first comments), another Arp 2600 like emu is available for the masses!

Come on let’s do it :

1. Arppe2600va by Glen Stegner

Based on the Richard brooks Synthedit source, the Arppe2600va is a must have, for all semi modular virtual analog lovers. Despite some bugs it has all you need : three oscillators, an ADSR generator, a LFO, a Sample & Hold Unit, a Filter, a spring reverb and many more!

If you are not familiar with the Arp 2600 you may have a look at the manual before programming some patches :

This (free!) eBook by Samuel Ecoff is also a must :

The matrix on the Arppe2600va VST is less fun that “patch chord” but is very powerful and easy to use.

Bonus !! 2 Free Preset Banks for Arppe 2600 va :

here’s one by our good friend Ann : :
72 incredible presets for the ARP 2600 VST!

and another preset bank by me : :
74 crazy presets !!

Bass arp !

Crazy Sequence

Space FX

2. Trans Computer Maschine by Cescato

trans Computer Maschine VST !

Unlike the Arppe2600va, this one is still developed!
Freeware / donationware, don’t hesitate to support the author.
It’s not a 1:1 Arp 2600 emulation, but it share the same basis.
And it’s good to have the value displayed for the pitch 🙂
a second ADSR is also a nice addition.
and more important, it features a sequencer, just check the “Blade runner” and “I Feel Love Donna Summer” presets ! cool
It has less modulation possibilities than the Arp 2600 / Arppe2600va but it still a powerful beast.

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— Bonux trax : —

3. Arp 2600 VST by Richard Brooks

The -very- old version of Arp 2600 VST, for hardcore “VST vintage” fans.

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and for the fun, an old GUI of arppe2600va :

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i prefer the blue one