Unlike the originals, all of these EQ types/modes feature smoothly adjustable frequencies, and their magic lies in the finely defined curves, closely emulating the original hardware and perfectly preserving transients. This expanded functionality builds upon the original concept envisioned by the manufacturer, and made possible by the inherent advantages of our Hyper technology.

Salt Equalizer is one of the lightest equalizers ever created by Acustica to date. While our Cherry Equalizer undoubtedly represents the state of the art in a mastering EQ, Salt is the larger sibling dedicated to mixing. Based on three sampled devices and built on the ‘Hyper’ engine, it offers an unprecedented experience that is both ultra-light weight and supremely powerful. Designed with speed, precision, and performance in mind, Salt is poised to redefine the essence of your audio mixing.

Experience the perfect blend of vintage and modern with Salt! We've meticulously sampled three distinct vintage EQs and incorporated them into Salt. Thanks to our advanced Hyper 3 technology, each EQ type faithfully reproduces the characteristics of the original hardware, and then takes it a step further. Unlike the limitations of the original hardware, which only offer fixed frequency positions, we've enhanced the model to provide adjustable frequency points for all these types. This means that you can freely combine any of these models with regular EQ types or other modeled types, granting you greater flexibility and ease of use.

We have enhanced the precision of parameter control (frequency, bandwidth, gain) by adjusting the component values in the original circuits. This allows us to combine the flexibility required by a modern mixing EQ with the distinctive and unparalleled sound of each of the original models. Salt provides you with the ability to compare three very different EQs with the assurance of always having exactly the same settings, no matter what they may be.

• Unique EQ Models: The Salt equalizer offers three distinct Classic EQ models, all powered by Hyper3 technology, providing you with an exceptional tool for your daily mixing and sound shaping needs.
• Control and Flexibility: Salt offers a wide range of control options to suit various mixing scenarios.
• High-Quality Sound: A focus on sound quality and fidelity of the original models improved thanks to Hyper3 tech, ensuring that equalization does not introduce unwanted artifacts.
• Intuitive User Interface: A well-designed and intuitive user interface that simplifies the equalization process.
• Versatility: The ability to use the plugin on a wide range of audio sources, such as musical instruments, vocals, or entire tracks.
• Transient Preservation and Management: The intrinsic ability to preserve, attenuate, or emphasize transient-associated frequencies, improving clarity and separation between instruments in the mix, and the option to handle them with three different EQ models, also usable in a hybrid manner, gives you a complete sonic palette that allows you to make the right technical moves for your artistic goal.
• Resource Efficiency: Low computer resource usage ensures smooth operation in complex mixing sessions.

Hyper3 technology is a groundbreaking advancement in the world of Acustica equalization. It brings forth a new era of sonic perfection, offering astonishing results that surpass traditional methods and unlock new levels of quality and efficiency. At its core, a Hyper3 equalizer is a sampled equalizer that utilizes convolutions using a series of mathematical tricks.

It combines both IIR (Infinite Impulse Response) and FIR (Finite Impulse Response) to handle the impulses’ tail with IIR and keeps the significant section in FIR mode. This approach overcomes computational limitations, allowing for exceptionally long FIR lengths that were previously unattainable.

We ensure that the transient, which is the most audible part of the IR (Impulse Response), remains completely identical to the FIR version, and the reconstruction of this IR through the IIR does not change in any way.
Instead, we now add a part of the IR through IIR that was not handled correctly by the FIR approach.

This improvement enhances the response at lower frequencies and the result is a harmonious blend of the advantages of both methods, delivering superior audio quality across the frequency spectrum.

With Hyper3 equalizers, high frequencies remain identical to the original machine, while low frequencies are significantly improved, offering a level of sound quality that is indistinguishable from the reference analog equalizer. Notably, fewer artifacts, such as ripple, are present, resulting in a more authentic and natural sound.

Starting from the releases A033 commercial - A009 trial, SALT has expanded, introducing a new plugin called SALT ULTRA. This plugin seamlessly integrates the intuitive and efficient workflow of SALT introducing new important features.

This update is FREE for current Salt users.

Roll of drums.. SALT becomes a full-fledged suite!

Salt Ultra is the latest Acqua plugin (VST/VST3/AAX/AU) in the Salt Suite, based on the third-generation Hyper technology and the New ‘Aria’ engine supporting our powerful “Anti-Aliasing” algorithm and for the first time in the Acustica's domain a new powerful EQ display capable of showing the effect and frequency response of each band in real time.