By Acustica Audio in collaboration with ( Acustica Audio )
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MusicRadar Rating... MusicRadar Rating...OSX 32 Bit OSX 64 BitVST 64bit / AU 64bit AAX64 AAX  64bit ..MusicRadar Rating VST  64bit AAX64 AAX  64bit.



Features actually supported in Core9:

  • Variable speeds on vector nodes improving the sound quality of the compressors and allowing to reach very fast speeds and precision.
  • Envelope followers based on control sources.
  • Queue messages used for several widgets like knobs improving the behaviour, control, and stability of plug-ins.
  • Hiddend components fault-tolerant inside nebula/acqua engine to minimized crash/bugs.
  • New wrapper to get better balanced AAX format
  • Several minor fixes and improvements (about trimming, sample rate conversion, distribution of sample rate packs, fixes on loaded program rate).
  • This engine is linked to Nat4 to allows the full automatic compressor sampling.
  • Switchmode optimization reducing CPU loading
  • Lazy loading pattern introduced to improve the loading of the objects

Refund policy


N4 (Nebula4) is our fastest-processing, best-performing, plug-in creation yet, a multieffect plug-in in VST/AU/AAX format for PC and MAC. N4 emulates the character and personality of analog hardware with exacting accuracy allowing you to emulate and replicate several types of expensive audio equipment, eliminating the need for costly and bulky studio hardware. Whether it is high end outboard equalizers, classic compressors, the latest reverbs, or vintage time-variant effects like phasers and flangers, Nebula4 has them all. Experience the full power of our proprietary audio processing technology, based on Vectorial Volterra Kernels, and find out what Nebula technology can do for you!

N4 is bundled with over 450 included presets, you'll be adding the warmth of analog to your digital mixes in no time at all. N4 load emulation presets from factory library or from 3rd developers which are created using a sophisticated sampling approach with a custom stand alone application developed also by Acustica Audio, making it possible to record the main aspects of the sound of audio devices and play them back using N4. The result of this sampling process is highly realistic, complex emulations of many types of audio signal processes, captured and utilized all within Nebula4 VST/AU/AAX plug-in that is compatible with all major audio sequencers and non lineal editing software.
What's new?

NEBULA4 Features:

  • OS X and Windows compatible.
  • Support VST2, VST3, AU and AAX formats.
  • Support 64 bits architecture.
  • Support lasted Intel generation 7th processors.
  • New open API architecture.
  • CORE9 version 1.4.x audio engine.
  • integrated browser/finder
  • 12+ new generic skins.
  • Compatible with Nebula4 libraries with dedicated and generic skins.
  • Compatible with Nebula2 and Nebula3 libraries.
  • Bundled with a new libraries.
  • New protection system.
  • New emulation presets browser window.
  • New master configuration window.
  • New dedicated meters window.
  • Internal signal routing.
  • Compatible with Nebula3 Pro and Nebula3 Server.



Bundle features

Inside this bundle you will find:
  • Nebula 4 is a VST/AU/AAX multieffect plug-in that is able to emulate and replicate several types of expensive audio equipment, eliminating the need for costly and bulky hardware. Nebula4 uses libraries which are created using a sophisticated “sampling approach” making it possible to “record” aspects of the sound of audio devices and play them back. The result of this sampling process is highly realistic, complex emulations of many types of audio signal processes, captured and utilized all within a VST/AU/AAX plug-in that is compatible with all major DAW's and editing software.
  • The commercial libraries is a 10 GB library with more than 450 different real hardware emulations sorted by category. Nebula library is included in all Nebula bundle and is downloaded from the Customer Area:

    72 pre-amps preset emulation
    78 equalizers preset emulation
    33compressors preset emulation (24 YROY, 2 ROSE, 7 RELS)*
    20 tapes preset emulation
    30 filters preset emulation
    100 reverbs preset emulation
    90 time variant effects preset emulation like chorus, flangers, phasers.

    *We are pleased to offer to all N4 customers new impressive commercial libraries, this pack includes our exclusive YROY (Yellow royale compressor library) ( the best emulations by Acustica characterized by new gorgeus N4 skin).



About Rose

Acustica is pleased to introduce with N4 pack our amazing Rose acqua plug-in. It's free for N4 owners and it is based on CORE9.


Rose is a compressor with a double identity. At the click of a switch, it is able to change its personality from a gentle and forgiving action to a tight, superfast control down to the sharpest transient.

The reason behind this versatility is easily explained. Two distinct hardware compressors with very different attitudes have been built and sampled specifically for this plugin: an optical device and an FET-based one.

The opto compressor is built around a Vactrol cell. You might call it the “Dr. Jekyll” of the pair, since its features are those typical of all the compressors based on this technology: a smooth gain-reducing action, a soft knee, and last but not least, attack and release curves shaped in a way that over the years has proven especially good for vocals and bass instruments. The optical cell isn't the fastest device in the world, but its action is always musical and easily set. You'll be surprised by how much gain reduction you can achieve on most materials before things start to sound weird. And even more so with some HP filtering in the sidechain.

The FET compressor is a whole other story. Its typical traits are a lightning-fast action and aggressive A/R curves; furthermore, it can easily talked into pumping like mad. All these features make an FET device ideal for heavy drums/percussion processing and for any other task where a snappy reaction is needed. Parallel compression (aka New York compression) is another field in which our unsettling “Mr. Hyde” excels.



Sys Requirements

OSX 32 Bit OSX 64 Bit

Operating System Windows 7
Windows 10
OSX 10.9 OSX 10.12
CPU i7 Latest multicore CPU (1) i7

Latest multicore CPU (1)

RAM 8 Gb 16 GB to 128 GB 8 GB 16 GB to 128 GB
HDD/SDD (3) (3) (3) (3)
Screen Resolution 1024x768 (XGA) 1920×1080 (HDTV) (2) 1024x768 (XGA) 1920×1080 (HDTV) (2)
Audio Host VST/AU/AAX 64 bits(4) VST/AU/AAX 64 bits VST/AU/AAX 32 bits(4) VST/AU/AAX 64 bits

(1) Intel Xeon v3 or Intel i7 generation 4 or 6 or newer is recommended.
(2) 3840x2160 UHDTV is also supported.
(3) It depends on the number of  libraries installed.
(4) 32 bits not supported.



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