Presonus Quantum ES 4 - USB-C Audio Interface

Introducing the Quantum ES 4, the pinnacle of audio interface technology crafted by PreSonus, a name synonymous with excellence in sound engineering for nearly three decades. Designed to empower self-made musicians and audio creators, the Quantum ES 4 embodies a fusion of cutting-edge innovation and industry-leading expertise, delivering unparalleled performance and pristine audio quality.

High-Performance Signal Flow

Equipped with custom low-latency drivers and state-of-the-art converters, the Quantum ES 4 ensures a seamless signal flow with minimal audio latency during recording. This guarantees that every nuance of your performance is captured with stunning clarity and fidelity, preserving the integrity of your sound from start to finish.

All-New MAX-HD Mic Preamps

At the heart of the Quantum ES 4 lie the all-new MAX-HD mic preamps, the culmination of 30 years of relentless innovation by PreSonus. Boasting a remarkable +75 dB of gain range, these rigorously redesigned preamps deliver transparency, accuracy, and low-noise performance, making them the perfect companion for a wide range of today's most popular microphones.

Co-Developed with Fender®

In collaboration with the esteemed engineers at Fender®, the Quantum ES 4 features a front-facing instrument input meticulously engineered to cater specifically to the needs of guitarists and bassists. This partnership ensures that your instrument's unique tonal characteristics are faithfully captured, allowing you to unleash your creativity with confidence.

Professional Recording Software Included

With 6 months of Studio One+, including full access to Studio One Professional Edition and an array of premium add-ons, the Quantum ES 4 provides you with everything you need to bring your musical visions to life with unparalleled ease and sophistication.

Auto Gain

Say goodbye to the hassle of manual gain adjustment. The Auto Gain feature automatically sets the optimal gain level for your microphones and instruments, ensuring consistently pristine recordings without the need for tedious tweaking.

Universal Control App

Whether you're in your home studio or on the go, the Quantum ES 4 offers seamless integration with any mobile or desktop device via the Universal Control app. With intuitive control over critical preamp functions and comprehensive metering capabilities, you have the power to fine-tune your recordings with precision, anytime, anywhere.

Speaker Switching

Use your Quantum ES 4 as a speaker switcher to check mixes on two different speaker sets with Universal Control. 

Additional Features:

• 4 x 4, 24-bit / 192 kHz USB-C Audio Interface
• Bright and responsive LED metering for easy monitoring
• 2 balanced ¼-inch TRS main outputs and high-power headphone output for flexible monitoring
• Loopback audio for quick and easy creation of monitor and streaming mixes
• Control your Quantum ES right from Studio One and the Universal Control app
• Intuitive speaker switching with Universal Control —easily check your mixes on two different speaker sets for accuracy.

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.