Product: Ivory 5
Developer: Acustica Audio
Price (MSRP): Introductory price €103.00€ [199.00€] - Save 48% OFF - For the first four weeks after release.
Plug-in Format(s): VST, AU, AAX
System Requirements (Windows): Windows 10
System Requirements (OSX): OSX 10.14
Ivory5 web-page:
Ivory5 User's manual:

Be your own master

IVORY5 is a VST/AAX/AU plug-in suite which includes 2 equalizers, 2 compressors, 2 dynamic equalizers and the latest new entry, a powerful Limiter. Each of these modules has been carefully crafted with the goal of building a set of awesome-sounding, mastering-grade tools. Ivory5 is a transparent yet extremely musical processors suite that shines on just about everything you throw it on. Whether you are a mastering engineer, looking for the utmost grade of control in the studio, or you are mixing and producing your next big hit - and you need powerful, versatile tools for shaping your subgroups - Ivory has you covered.

What you get

The IVORY5 suite consists of 7 separate Acqua plug-ins, each with a gorgeous graphical user interface that allows for easy and quick operation.

This bundle includes:





Each plug-in included in the Ivory5 suite comes in a “Standard” version and an alternative “ZL*” version, which operates at *zero latency and is thus suitable for use when tracking, at the cost of extra processing resources.

What's New in this fifth version?

Ivory5 adding exciting new features and a new powerful emulation to your arsenal.

We upgraded it with:

-A new SOA control added in the Ivory Dyn EQ (and also in the Stereo Version).
-All preamps 'fine-tuned' according to the latest standards.
-Improvements in terms of CPU resources consumption.
-And last but not least, a new powerful Mastering Limiter.

Ivory 5 MAL-2, the Ultimate Mastering Limiter

Ivory5 MAL-2 is Acustica's own interpretation of a two-band peak limiter inspired by a famous mastering dynamic processor from a well-known British manufacturer.
Don't be fooled, it is not a 1:1 copy of the hardware, so don't expect the same behaviour!
It's the perfect choice to control the highest peaks in your music program if inserted at the end of the audio chain in the most traditional way, but it can also be used as an extreme tone-shaping tool on individual tracks.
To use both limiters you need to turn HF ON; this enables a crossover at 2kHz that splits the incoming signal into two bands, allowing you to work separately on different portions of the spectrum (LF and HF). When HF ON is bypassed, then the processor becomes a classic wide-band limiter. More info in the User's manual.


This isn't your everyday digital peak limiter, but the emulation of an analogue processor that, as opposed to all digital limiters, cannot predict the future. This means that there's always the chance that, in the event of a sudden loud and sharp transient, few samples above the preset output level might slip through the processor, before the gain control circuit is able to react to the situation.
This is the reason why in the original device some clippers are strategically placed in the circuit in order to take care of those unruly offenders.
Despite being in the digital domain, we decided to maintain this behaviour, with a view to preserving the 'analogue' flavour of this limiter. The basic concept is that despite the presence of these clippers, they should operate under the hood, very rarely and in the most unperceivable way.

Each limiter acts as an extremely fast processor, preventing the output signal from exceeding a preset level. However, their intervention may not be one hundred percent effective in all cases, and some transients may be able to pass through the limiter's mesh, exceeding the preset level.
In this case, properly set clippers come into play and limit these peaks by a fraction of a dB.
-A final operating note that should not be overlooked and may be misleading.
The Ivory5 MAL-2 features two limiters whose thresholds and output levels are internally set at a fixed level. The LF and/or HF Threshold control(s) should be rather considered as input gain controls, with a range of -20 to +20 dB.

TIP - This is the suggested manner of use of this limiter: first choose between one or two-band operation, then adjust the Threshold control(s) until you reach the desired amount of gain reduction, as displayed by each GR meter (please remember that the Threshold control practically behaves as an input control into the limiting stage). Next, if you're operating in two-band mode, you may have to re-balance the frequency spectrum of the signal by adjusting the LF and HF Level controls for each band.
Finally, please keep in mind that the Output Level control is placed after all the limiting stages. When that control is set at 0 (central position), the default maximum level is -0.2 dBFS. Accordingly, you may select any different maximum output level by adjusting the Output control.

Enjoy the following video that will give you a small taste of the potential of the limiter:

How to try a plug-in: TRIAL MODE

- Create a user account (if you do not have one yet) on our website
- Download and Install Aquarius, our products manager, for either Mac or PC
- Log in to Aquarius using your user email and password
- Type the product name in the 'search' field inside Aquarius to find the '(trial)' version of the product, then click on the thumbnail or on the 'Install' button. This will take you to the product page (the trial version of a product is also visible in the 'related products' section on the right)
- Select the right plugin format according to the DAW you are using and click 'Install'
- Aquarius will download, install,and authorise the trial product automatically
- Run your DAW. You're set!

Please note:

- For details about installation/authorization please refer to the following page: Acustica Audio - Professional Audio Software - Acustica Audio
- Available sample rates: 96 - 44.1 - 48 - 88.2 kHz
- CORE 17