UNIVERSAL AUDIO Apollo X4 Gen 2 STU
Estimated delivery in Italy between 16 and 18 November
12 x 18 Thunderbolt desktop audio interface with four Unison microphone preamps, superior Apollo X Gen 2 audio conversion, Auto-Gain, Apollo monitor correction, bass management, QUAD core DSP processing and a premium software suite for Mac and Windows.
Create with the most powerful desktop audio interface in the world
Record and mix complex sessions and hear every detail with the new generation of Universal Audio Apollo x4 interfaces. Equipped with ultra-high resolution audio conversion, four Unison™ preamps and QUAD Core DSP, this interface lets you record in real-time through UAD plug-ins from Neve, Manley, Avalon, SSL and many others. Trusted by world-renowned artists and producers, Apollo x4 takes your production to the next level thanks to Universal Audio's distinctive sound and legendary quality, designed to inspire your next collaborations.
Key benefits
- Experience next-generation audio conversion with the widest dynamic range and lowest distortion ever achieved on an Apollo
- Record with the analog tones of Unison™ preamps, which allow you to record in real-time using authentic emulations from Neve, API, Avalon, Manley, Fender and many others
- Access the complete library of over 200 UAD DSP and Native plug-ins, including award-winning titles like Capitol Chambers, Sound City Studios, EL8 Distressor and much more
- Mix with precision in any environment, even in headphones, thanks to Apollo monitor correction supported by Sonarworks®*
- Use Auto-Gain to set levels on multiple inputs in seconds, without ever missing an important recording
- Hear every detail of bass frequencies in your mixes by adding a subwoofer thanks to bass management
- Easily configure low-latency cues, plug-in scenes and immersive audio monitoring via the UAD Console app
- Receive thousands of dollars in award-winning UAD plug-ins such as Auto-Tune, Fairchild, Teletronix and many others, choosing between Essentials+ or Studio+ versions
The most powerful Apollo desktop ever
Universal Audio has designed Apollo x4 to expand the iconic Apollo Twin, the interface that revolutionized home recording and small studio recording. With a greater number of I/O, unprecedented dynamic range and superior 24-bit/192 kHz audio conversion — now with advanced monitoring — Apollo x4 gives you the sound of great studios right in your home.
Record with legendary preamps
With four Unison™ preamps and two front Hi Z inputs, Apollo x4 lets you record in real time through preamps and channel plug-ins from Neve, Manley, API and many others, delivering the rich analog textures used in the greatest recordings in history.
Mix with authentic analog sounds
Apollo x4 gives you, right out of the box, the tools used in the world's greatest recording studios. Beyond the included Teletronix LA-2A compressors, Pultec equalizers and Marshall and Ampeg amplifiers, you can access the entire library of over 200 UAD plug-ins, unlocking sounds from hits like Ocean Way Studios, Capitol Chambers and many more.
Listen to every detail like never before
In its second generation, Apollo x4 features the highest quality D/A converters ever integrated, now paired with Apollo monitor correction, powered by Sonarworks®. This means that when you playback your audio through monitors or headphones, you'll hear a faithful reproduction of your recordings, with no surprises when you move to final mix or master.
Find your workflow in the UAD Console app
Like in an analog studio, where the console is the heart of the workflow, Apollo x4 integrates a powerful digital mixing engine that lets you control plug-in routing and monitoring. With advanced features like Auto-Gain, bass management and Plug-In Scenes, finding a workflow that fits your needs becomes easy.
A hybrid system designed for your needs
Combine Apollo x4's QUAD Core DSP with your computer's native processing to handle complex sessions and sophisticated plug-in chains — a hybrid workflow that exceeds any native processing-only configuration.
Expand your studio as you grow
Expand your studio by connecting up to four Apollo interfaces via Thunderbolt, reaching up to 128 channels of premium I/O in your DAW. Manage everything directly from your desktop with Apollo x4, so your studio can grow alongside your music.
Key Features
- 12 x 18 Thunderbolt audio interface with QUAD Core DSP processing
- Four Unison™ microphone preamps, two Hi-Z instrument inputs, Toslink optical I/O (ADAT or S/PDIF)
- Two 1/4" monitor outputs, four 1/4" line outputs (ALT 1 / 2), two 1/4" TRS headphone outputs
- Apollo X Gen 2 class converters with 24-bit / 192 kHz resolution
- D/A enhancement for critical monitoring with 129 dB dynamic range
- Main monitor and headphone output correction with Apollo Monitor Correction powered by Sonarworks®*
- Full monitor controller with speaker switching and integrated talkback for easy communication with talent
- Updated UAD Console app with Auto-Gain, Plug-In Scenes, subwoofer integration and immersive audio support
- Integrated DSP supports over 200 UAD plug-ins in VST, AU and AAX 64 formats on all major DAWs
- Includes up to 50+ UAD plug-ins in Essentials+ or Studio+ editions
- Compatible with LUNA, Logic Pro, Pro Tools, Cubase, Ableton Live and more
- Expandable via Thunderbolt Apollo interfaces or select models via Dante
- Industry-leading technical support offered free by experienced sound engineers
*Requires licenses for Apollo Monitor Correction Add-on and SoundID Reference, purchasable at sonarworks.com
**For complete compatibility information, visit help.uaudio.com
Plug-ins Included in Studio+ Edition
- Channel Strip & Preamp (9)
- Avalon VT-737sp Channel Strip
- Century Tube Channel Strip
- CS-1 Channel Strip
- Helios Type 69 Preamp & EQ
- Manley Reference Microphone Preamp
- Precision Channel Strip
- UA 610-A Preamp & EQ
- UA 610-B Preamp & EQ
- V76 Preamplifier
Compressors / Limiter (17)
- dbx 160 Compressor / Limiter
- Empirical Labs Distressor
- Fairchild 670 Legacy
- Fairchild 660 Compressor
- Fairchild 670 Compressor
- Teletronix LA-2 Classic Leveler
- Teletronix LA-2A Gray Classic Leveler
- Teletronix LA-2A Silver Classic Leveler
- Teletronix LA-2A Legacy Leveling Amplifier
- Teletronix LA-3A Classic Audio Leveler
- UA 1176 Rev A Classic Limiter
- UA 1176AE Classic Limiter
- UA 1176LN Rev E Classic Limiter
- UA 1176LN Legacy
- UA 1176SE Legacy
- UA 175B Classic Limiter
- UA 176 Classic Limiter
Equalizers (6)
- Helios Type 69 Legacy EQ
- Pultec EQP-1A Legacy EQ
- Pultec EQP-1A Passive EQ
- Pultec HLF-3C Passive EQ
- Pultec MEQ-5 Passive EQ
- Pultec Pro Legacy EQ
Special Processing (7)
- Auto-Tune Realtime Access
- Auto-Tune Realtime Advanced
- Auto-Tune Realtime X
- Oxide Tape Recorder
- Precision Enhancer Hz
- Studer A800 Multichannel Tape Recorder
- Verve Analog Machines Essentials
Instruments (6)
- Electra 88 Vintage Keyboard Studio
- Moog Minimoog
- Opal Morphing Synth
- PolyMAX Polyphonic Synth
- Ravel Grand Piano
- Waterfall B3 Organ
Delay & Modulation (5)
- Brigade Chorus Pedal
- Galaxy Tape Echo
- Precision Delay Mod
- Precision Delay Mod L
- Studio D Chorus
Reverbs and Spaces (4)
- Lexicon 224 Digital Reverb
- Precision Reflection Engine
- Pure Plate Reverb
- RealVerb Pro Custom Room Modeler
Guitar and Bass (3)
- Ampeg SVT-VR Classic Bass Amplifier
- Marshall Plexi Classic Amplifier
- Raw Distortion
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About UNIVERSAL AUDIO
Universal Audio is a legendary brand in the world of professional audio, renowned for its audio interfaces, preamplifiers, compressors, and the UAD plug-in platform. Universal Audio products combine superior analog circuitry with cutting-edge digital technology, offering musicians, producers, and sound engineers tools for recording and mixing with impeccable sound. The Apollo series interfaces have become a standard in studios worldwide thanks to their integrated DSP processing and faithful emulations of classic analog hardware. Universal Audio represents excellence for those seeking uncompromising sound quality. On musicdelivery.net, you can purchase Universal Audio interfaces, plug-ins, and processors to take your productions to the next level.
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Shipments
Shipments
We ship throughout Italy and the European Union via selected express courier partners. All orders travel in special reinforced packaging and are covered by 100% included insurance to fully protect the value and integrity of professional equipment during transport.
Returns and refunds
Returns and refunds
You can request a return within 14 days of receiving the order. As these are professional hardware and devices, items must be returned completely intact, unused, unactivated, and sealed in their original packaging, complete with all accessories and manuals.
Frequently Asked Questions
Can't find the answer you're looking for? Our team of specialists is at your disposal for configurations or technical questions.
What are your shipping and delivery times?
What are your shipping and delivery times?
Orders are processed within 24/48 business hours. Delivery is made by insured express courier to guarantee maximum protection and safety even for the most delicate and expensive equipment.
Are the products covered by an official warranty?
Are the products covered by an official warranty?
Yes, all products are 100% original and covered by the official 24-month manufacturer's warranty. In addition, our technical department offers free after-sales support to assist you with the initial setup of your system.
How does the right of withdrawal work?
How does the right of withdrawal work?
If the hardware does not meet your expectations, you can return it within 14 days of receipt. The product must be returned intact, unused, and sealed in its original packaging, complete with all accessories and manuals.
What does it mean if a product is "Available on order"?
What does it mean if a product is "Available on order"?
Some complex professional audio systems or lighting equipment are ordered directly from official distributors based on customer requests. You can proceed with the purchase as normal and our team will immediately inform you of the exact arrival times at our warehouses.

