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The Quadra Black Friday deal from Cherry Audio takes 51% off this synth plugin, which puts it at $24 until Dec 1, 2026. Quadra is a virtual version of the ARP Quadra, a 1978 instrument the maker calls a rare, coveted "unicorn" of the synth world.
Cherry Audio says this is the first time that instrument has been reproduced as a virtual instrument, and it describes the result as a super-accurate emulation with big improvements over the original.
Quadra is a four-section synthesizer plugin. Each section can be assigned to its own region of the keyboard, so you can split and layer them freely.
The four sections are:
The string section is built to reproduce the string ensemble instruments of the 70s.
The poly synth is an improved take on the original. It offers saw, variable pulse, "spike" and "hollow" waveforms, an expanded range, and a drift button for an organic tone.
The lead synth is dual-oscillator, with ramp, pulse, sine, triangle and noise waves. Pulse-width modulation can come from an LFO or an envelope. It also has a two-voice split mode and independent portamento for each oscillator.
The original's awkward patch storage is replaced by Cherry Audio's patch browsing system, which has no patch limit. The maker also says overall sound quality is improved for a richer, fatter tone.
The effects section pairs a phaser emulation with a stereo chorus/flanger, a syncable echo and studio-quality reverb. Each effect can be routed individually.
Other features, as listed by the maker:
Quadra comes in AU, VST, VST3, AAX and standalone formats. On Windows the formats are VST, VST3, AAX and standalone. AU is for Mac.
The code is optimized for ultra-low CPU load, and there is a user-adjustable oversampling control. A one-click UI magnification option scales the interface.
On Mac you need macOS 10.13 or above, 64-bit, with macOS 13 Ventura supported and native Apple M1 support, including M1 Ultra. Cherry Audio recommends a 3.4 GHz quad-core or M1 CPU with 8GB of RAM.
On Windows you need Windows 7 or above, including Windows 11, 64-bit. A quad-core computer with 8GB of RAM is recommended.
Yes. The Quadra Black Friday deal takes 51% off Cherry Audio's ARP Quadra emulation, which brings it to $24. The deal ends Dec 1, 2026.
Quadra has four independent sections: a classic string synthesizer, a poly synthesizer and a dual-oscillator lead synth. It adds over 400 presets and an effects section with phaser, stereo chorus/flanger, syncable echo and reverb, all individually routable.
Quadra is available as VST, VST3, AU, AAX and standalone. On Windows you get VST, VST3, AAX and standalone. On Mac you also get AU. Native Apple M1 support is included, and Windows 7 and above is supported.
Yes. Each of the four sections can be assigned to any region of the keyboard independently, so you can split and layer them freely. The multi-out version also lets you process each section separately in your DAW.
Prices and end dates are checked at publishing time and can change, so confirm them at the store before you buy.