Cherry Audio Quadra Synthesizer

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Vintage Synthesis, To The Fourth Power
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Cherry Audio
Mac & Win
Availability: In stock

Electronic Delivery! 

Download products will be processed a minimum of available 24 hours after purchase. We do not offer instant downloads. Orders are delayed at least one business day to help reduce fraudulent orders. Once your order is processed, you will receive a code via email. Orders placed Monday - Friday 10:00AM to 6:00PM CST will receive the email by the end of the following business day. For orders placed outside of our normal business hours, your code will arrive at the end of the following business day.

You may be contacted by ADK to confirm your order before receiving your product download code.

Software Boxed or Download is not Returnable

Software boxed or downloadable software cannot be returned/refunded once opened and/or registered.

Please contact us about operating system, software version upgrade/updates and hardware compatibility BEFORE purchasing.

The Cherry Audio Quadra is a super-accurate and immensely improved emulation of the ARP Quadra synthesizer, originally released in 1978 - a rare and coveted “unicorn” instrument in the synthesizer world, reproduced for the first time as a virtual instrument.



Cherry Audio's Quadra introduces improvements throughout every section, bringing out the full potential of the original ARP design. Each instrument section can now be layered anywhere across the keyboard, and we've increased transposition ranges for most sections.

The paraphonic Poly Synthesizer section has been beefed up with an additional octave, optional oscillator drift, velocity control, new modulation capabilities (including pulse-width modulation), and additional waveforms. The Lead Synthesizer section has been enhanced with a more powerful arpeggiator, additional waveforms, adjustable note priority, and numerous other small improvements. We've turned the Quadra's rudimentary LFO into a full-featured, multi-waveform, tempo-syncable LFO. We've added a deeply flexible bender section that allows pitch bend wheel data to independently bend pitches and modulate filter cutoff for each instrument section.

We modeled the ARP Quadra's 14-stage phaser, and added additional effects - chorus/flanger, echo, and reverb - that can also be turned on and off independently for each instrument section. Imagine strings bathed in reverb, a poly synth slowly phasing and flanging, and a lead synth with a slapback delay, all layered together to create a beautiful swirling pad. The sound design possibilities are endless!

Quadra includes a multiple out version for maximum flexibility. The standard "Quadra" instance mixes the four sections to a summed output. "Quadra Multi Out" includes five sets of outputs: a standard stereo mix, plus dry independent outputs for each section, as found on the original hardware.

Quadra Features:

Over 450 presets, programmed by industry veterans


All four sections superbly recreated


Poly Synthesizer includes Drift control for increased analogrealism


Independent key range assignment for all four instrumentsections


Precisely replicated phase shifter with multiple mod sources


Tempo-syncable LFO


Multi-out instance allows separate processing of eachinstrument section


Improved arpeggiator section w/tempo sync


Accurately emulated "Touch Sensor" aftertouchsection


Highly optimized coding for high performance with ultra-lowCPU load


User-adjustable oversampling control


Advanced one-click UI magnification


Full MIDI control and DAW automation for all controls

Quadra is available in AU, VST, VST3, AAX, and standaloneformats.


A free 30-day demo of Quadra is available. This demo willplay white noise periodically, but is otherwise unlimited.


macOS Requirements: macOS 10.9 or above (including macOS12), 64-bit required. Native Apple M1 processor support. Quad-core computerwith 8GB of RAM recommended.


Windows Requirements: Windows 7 or above (including Windows11), 64-bit required. Quad-core computer with 8GB of RAM recommended.

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