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The mercury 4 Black Friday deal takes 51% off Cherry Audio's Mercury-4 synth plugin, so it costs $24 until Dec 1, 2026.
Mercury-4 is a software take on the Roland Jupiter-4, the 1978 synthesizer that paired voice-assign polyphony with digital patch storage. The original had four voices and eight user patch locations. The plugin runs up to 16 voices and has no limit on stored patches.
The maker describes the Jupiter-4 as having a raw, raunchy tone, with aggressive analogue oscillators and a built-in sub-oscillator that adds girth. Mercury-4 models the oscillator and its sub-oscillator, along with all the filter characteristics, including the low-frequency resonance.
The LFO is modelled with the original's wide range and "inverted" modulation behaviour. Cherry Audio says that depth is what lets the Jupiter-4 produce modular-style tones.
A drift control adds analogue-style instability to the voices.
The stereo ensemble effect is Roland's chorus circuit, and Cherry Audio says it adds a lot of width and dimension. A tape echo in the style of a Space Echo sits beside it, with the warm tone and slight speed variations of those units.
The reverb section has several modes. The original had a spring reverb, and the plugin adds plate and hall.
The arpeggio section replicates the original's design and syncs to tempo. The LFO syncs to tempo too.
Two more playing modes are included:
Over 300 presets come with it, programmed by industry veterans. The key features:
Cherry Audio says the code is highly optimized for an ultra-low CPU load.
Mercury-4 comes as AU, VST, VST3, AAX and standalone on Mac, and as VST, VST3, AAX and standalone on Windows.
On Mac you need 10.13 or above in 64-bit. macOS 13 Ventura is supported, and so is native Apple M1 (including M1 Ultra). A 3.4 GHz quad-core or M1 CPU with 8GB of RAM is recommended.
On Windows you need Windows 7 or above, including Windows 11, in 64-bit. A quad-core machine with 8GB of RAM is recommended.
Yes. Mercury-4 is 51% off for Black Friday, which brings the price to $24. The deal runs until Dec 1, 2026.
Mercury-4 includes over 300 presets, up to 16-voice polyphony, a sub-oscillator, a stereo ensemble effect, a tape echo with multiple reverb modes and a tempo-synced arpeggiator. It also has unison and chord memory modes plus a drift control.
Mac gets AU, VST, VST3, AAX and standalone versions. Windows gets VST, VST3, AAX and standalone. Both platforms need a 64-bit system, and Apple M1 processors are supported natively on Mac.
The 1978 original had four voices, eight user patch locations, no edit mode for stored patches and no oscillator autotune. Cherry Audio says Mercury-4 fixes all of that with up to 16 voices, infinite patch storage and easy patch editing.
Prices and end dates are checked at publishing time and can change, so confirm them at the store before you buy.