FabFilter Pro-Q 4 – Next-Gen EQ Plug-in for Mixing & Mastering (Serial Download)

FabFilter Pro-Q 4 is a state-of-the-art equalizer plug-in designed to meet the exacting standards of audio professionals in mixing and mastering environments. Building upon its acclaimed predecessor, Pro-Q 3, this latest version introduces significant advancements in spectral dynamics processing, workflow efficiency, and immersive audio support, making it an essential upgrade for those seeking the ultimate in precision and flexibility.

At the core of Pro-Q 4 is the new Spectral Dynamics Processing, a groundbreaking feature that allows users to dynamically control specific frequencies without affecting the overall tonal balance. Unlike traditional dynamic EQ, which applies gain changes to entire bands, Pro-Q 4’s spectral mode only triggers adjustments where necessary, ensuring a more transparent and natural sound. This makes it ideal for handling problematic resonances, de-essing, and dynamic frequency shaping with unparalleled accuracy.

Another major enhancement is EQ Sketch, a workflow innovation that enables users to draw EQ curves directly onto the interface. This dramatically speeds up the EQ setup process, allowing for intuitive, hands-on adjustments that streamline mixing and mastering tasks. In addition, the Instance List feature provides an overview of all active Pro-Q 4 instances within a session, enabling seamless navigation and control across complex projects.

For engineers working with immersive audio formats, Pro-Q 4 now offers full support for surround and spatial audio, including Dolby Atmos up to 9.1.6. Its intelligent speaker selection ensures precise frequency shaping across multi-channel environments, making it an essential tool for modern film, game, and VR audio production.

Further refinements include per-band dynamic EQ processing with enhanced control, as well as expanded mid/side and left/right functionality for deeper stereo field manipulation. The user interface has also been refined for improved readability and accessibility, maintaining FabFilter’s signature sleek, intuitive design.

With these advancements, Pro-Q 4 solidifies its place as one of the most powerful equalization tools available. Whether you're shaping a mix, fine-tuning a master, or sculpting sound design elements, Pro-Q 4 offers unmatched flexibility, precision, and sonic transparency.

Key Features:

• Advanced Spectral Dynamics Processing – Targets problematic frequencies dynamically, applying adjustments only where needed for transparent and precise control.

• EQ Sketch Functionality – Draw EQ curves directly onto the interface for faster workflow and more intuitive equalization.

• Instance Management – View and control all Pro-Q 4 instances within a session from a single interface for improved efficiency.

• Comprehensive Surround Support – Full compatibility with immersive formats, including Dolby Atmos up to 9.1.6, with intelligent speaker selection.

• Dynamic EQ and Mid/Side Processing – Each band can operate in dynamic mode with individual mid/side or left/right processing for enhanced stereo control.

Technical Specifications:

• EQ Bands: Up to 24 bands, each capable of dynamic processing.

• Filter Types: Bell, Notch, High/Low Shelf, High/Low Cut, Band Pass, Tilt Shelf, Flat Tilt, and All Pass filters.

• Slope Settings: Continuous slope adjustments up to 96 dB/octave, with an ultra-steep 'Brickwall' option for high and low-pass filters.

• Processing Modes: Zero latency, Natural Phase, and Linear Phase modes with adjustable latency.

• Spectrum Analyzer: Built-in, customizable spectrum analyzer with pre-EQ, post-EQ, and external spectrum visualization options.

• Platform Compatibility: Available in VST, VST3, Audio Units, CLAP, AAX Native, and AudioSuite formats.

FabFilter Pro-Q 4 stands as a versatile and powerful equalizer plug-in, offering audio professionals the tools needed for precise and efficient sound shaping in any mixing or mastering project. With significant upgrades over Pro-Q 3, it provides a compelling reason to upgrade for those seeking the latest in EQ technology.

Digital Downloads (buying software)

All software marked as "serial download" or "digital download" will be delivered via email within normal office hours.

Simply add the software to the basket and at the delivery stage in the checkout please select "Digital Download - Software by email" as your delivery method

Delivery Charges (Main Products)

The cutoff for same-day dispatch is 3:30pm but can vary at busier times such as Christmas.

All orders over £99.00 will be delivered free via our standard delivery 2-3 days (UK Mainland)

If you need your item faster we also offer a Priority Tracked service at £3.99 (1-2 days) or Next Day Tracked £6.99

(please ensure you add a mobile number to your order for tracking)

Saturday delivery is available when ordered before 2pm (Mon-Fri)

All orders below £99.00 will start as low as £2.99 depending upon weight and qty(s) (UK Mainland) 

All Delivery options will be available at the delivery stage in the checkout

EU Delivery Times

Non UK Mainland Addresses please allow 1-3 Days
Delivery To Belgium / France / Germany please allow 3-4 Days
Music PC Systems - Please allow 5-7 Working Days build time (UK) 7-14 (Rest of the World)

French - Pour la Livraison s'il vous plaît permet en France 2-4 Jours
German - Für Lieferung Nach Deutschland erlaubt bitte 2-4 Tage

Delivery Notes
On delivery, you must inspect the goods carefully for damage as Inta Audio is unable to accept responsibility for damage in transit, shortage of delivery or loss of products unless the customer advises Inta Audio of such within three working days from the date of delivery.

Returns Policy

We ask that you follow these guidelines to help us process your return as quickly and efficiently as possible:

1. Please keep your order reference to hand. This confirms your original order and gives us the necessary details to authorise the product’s return.

2. Contact our Customer Services Team on 02476 369898 (or e-mail cs@inta-audio.com). We will then send you an RMA number and returns form which needs to be completed and sent back with the returned item(s).

3. (If the order has been unpacked) re-package it to ensure that it is being returned in its original condition. Please make sure all items relating to the product are returned, including manuals and cables.

4. When returning an item please obtain a ‘proof of postage’ receipt from the Courier.


Returned items must be mailed within 10 days of when the RMA Number has been issued. Items received with a post date 30 days after your requested return will NOT be eligible for refund.

Please note: Our returns policy is quite straightforward but there are a number of conditions that we ask our customers to comply with before applying:

1. It is your responsibility to request a return. If you don’t tell us you want to make a return, we don’t know. Once you do tell us, we will do everything we can to action it.

2. If you have not requested a return within 28 days of receiving an order, we will have assumed that you are intending to keep it and we will not authorise a return.

3. We always refund the payment according to how the original purchase was made and aim to do so within 72hrs of the return being received by us.

4. Returned goods are liable for a restocking fee of 15% towards handling and repackaging if the order is not returned in its original, unopened packaging. This charge will be subject to our inspection of the returned goods.

5. Delivery charges will not be refunded unless the delivered goods are faulty.

6. Replacement products are dispatched immediately after the returned goods have been received and accepted by Inta Audio.

7. Items that develop a fault within 30 days of delivery are eligible for a replacement or a refund. Delivery costs are also reimbursed for faulty items. Please contact our Customer Services Team on 02476 369898 if you believe your item has developed a fault.

Finally, please remember that notifying us of your intention to apply for a return, saving the delivery paperwork and keeping the order in its original packaging will help both you and Inta Audio to process the return quickly.

If you have any questions about our Returns policy please telephone us on 02476 369898 or email us at cs@inta-audio.com.