Universal Audio Apollo x4 Gen 2 Analog Classics Pro Thunderbolt Interface
The UA Apollox4 interface has 4 Unison mic Preamps and QUAD Core DSP Processing. It features 24-bit /192 kHz audio conversion, enhanced monitoring and comes with a hefty UAD plug-in package.
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Universal Audio Apollo x4 Gen 2 Thunderbolt Interface
The Universal Audio Apollo x4 Gen 2 is a desktop powerhouse that packs elite-class audio conversion, four pristine Unison mic preamps, and QUAD Core DSP processing into a sleek chassis, letting you record and mix with the same tools trusted by Grammy-winning producers. Think of it as having a world-class analog studio right at your fingertips, ready to capture every nuance of your performance with breathtaking clarity.
Why Choose Ordinary When You Can Have Extraordinary?
The Apollo x4 isn't just an interface; it's a complete production ecosystem. It delivers the ultra-clean signal path and expansive soundstage that UA is famous for, while giving you the horsepower to run its legendary UAD plug-ins in real time. Whether you're tracking vocals through a classic Neve preamp, adding Fairchild compression to a drum bus, or sweetening a mix with a Pultec EQ, the Apollo x4 provides that authentic analog warmth without taxing your computer's CPU.
Elite-Class Apollo X Gen 2 Converters: Experience pristine audio fidelity with UA’s next-generation 24-bit / 192 kHz converters. The enhanced D/A conversion provides an astonishing 129 dB of dynamic range, so you can hear every subtle detail during tracking and make critical mix decisions with confidence.
Four Unison™ Mic Preamps: Go beyond simple preamplification. Unison technology lets you record through spot-on emulations of classic hardware from Neve, Manley, API, and SSL. It’s not just a plug-in; the technology physically reconfigures the preamp’s impedance and gain staging to mirror the original analog circuits, giving you the genuine character and feel of timeless gear.
QUAD Core DSP Processing: Run a universe of UAD plug-ins without slowing down your DAW. This onboard processing power means you can track and mix with complex plug-in chains at near-zero latency, delivering that polished, album-ready sound right from the source.
Included UAD Plug-In Bundles: Get started right away with a premium suite of plug-ins. The Essentials+ or Studio+ Editions provide access to industry-standard tools like Teletronix compressors, Pultec EQs, and classic channel strips, giving you thousands of dollars worth of hit-making sounds straight out of the box.
Find Your Perfect Sound and Workflow
The Apollo x4 is meticulously designed to streamline your creative process, providing intuitive tools that help you work faster and smarter. It eliminates technical hurdles so you can focus purely on the music, from dialing in the perfect levels to ensuring your mixes translate perfectly everywhere.
Apollo Monitor Correction powered by Sonarworks: Say goodbye to guesswork in your mixing environment. This powerful feature calibrates your monitors and headphones to create a flat, trustworthy frequency response, ensuring your mixes sound exactly as you intend them to, no matter where they’re played.
Updated UAD Console App: The heart of your workflow, the Console app, is now more powerful than ever. New features like Auto-Gain instantly set optimal recording levels across multiple inputs, while Plug-In Scenes let you save and recall entire channel strip configurations with a single click.
Integrated Talkback and Monitor Controller: Communicate effortlessly with artists using the built-in talkback mic. The fully-featured monitor controller also includes alternate speaker switching and subwoofer integration with Bass Management, giving you complete control over your listening environment.
Connectivity for the Modern Studio
With its generous I/O and forward-thinking expandability, the Apollo x4 is built to be the hub of your studio, both now and in the future. It offers the flexibility to handle everything from solo recording sessions to full-band tracking.
Comprehensive I/O: The Apollo x4 is equipped for any scenario with four mic/line inputs, two Hi-Z instrument inputs, four line outputs, and two independent headphone outs. Optical ADAT/S/PDIF I/O provides an additional eight channels of digital connectivity, perfect for expanding your setup with an external preamp.
Thunderbolt Connectivity: Get lightning-fast speed and rock-solid performance on both Mac and Windows systems. Thunderbolt technology ensures ultra-low latency and high-bandwidth audio streaming, so your system remains stable even during the most demanding sessions.
Expandable Ecosystem: As your studio grows, so can your Apollo setup. You can link up to four Thunderbolt Apollo interfaces together, creating a massive, integrated system that you can control right from your desktop.
The Centerpiece of a Legendary Studio
The Universal Audio Apollo x4 Gen 2 is far more than just a way to get sound into your computer — it’s an investment in legendary tone and an unparalleled workflow. By combining pristine conversion, powerful real-time processing, and the feel of classic analog gear, it gives you everything you need to produce professional, radio-ready music from your desktop.
Universal Audio Apollo x4 Gen 2 Essentials Features:
12 x 18 Thunderbolt audio interface with QUAD Core DSP plug-in processing
Elite-class 24-bit / 192 kHz Apollo X Gen 2 converters with 129 dB dynamic range
Four Unison™ mic preamps for tracking through authentic hardware emulations
Includes up to 80+ UAD plug-ins with UAD Analog Classics or UAD Analog Classics Pro
Apollo Monitor Correction powered by Sonarworks for accurate monitoring
Full monitor controller functionality with talkback, ALT speaker switching, and more
Updated UAD Console app with Auto-Gain, Plug-In Scenes, and Bass Management
Two front-panel Hi-Z instrument inputs and two independent headphone outputs
Expandable with up to four Thunderbolt Apollos
Compatible with LUNA, Pro Tools, Logic Pro, Ableton Live, and all major DAWs
Warranty: 1 Year from date of purchase (parts and labor)
Universal Audio Apollo x4 Gen 2 Analog Classics Pro Thunderbolt Interface Specifications
Item #:
UAD APX4G2S
Manufacturer Part Number:
APX4G2-STU
UPC:
819937004704
Product Specifications
Over 80 Included Plug-Ins in UAD Analog Classics Pro:
Vocals & Pitch Correction (2):
Topline Vocal Suite
Topline Key Finder
Channel Strips & Preamps (19):
API® Preamp
API® Vision Channel Strip
API® Vision Channel Strip Legacy
Avalon® VT-737sp Channel Strip
CS-1 Channel Strip
Century Tube Channel Strip
Helios® Type 69 Preamp & EQ
LA-6176 Signature Channel Strip
Manley® Reference Microphone Preamp
Manley® VOXBOX Channel Strip
Neve® 1073 Preamp & EQ
Neve® 88RS Channel Strip
Neve® 88RS Channel Strip Legacy
Precision Channel Strip
SSL® E Series Channel Strip
SSL® E Series Channel Strip Legacy
UA 610-A Preamp & EQ
UA 610-B Preamp & EQ
V76 Preamplifier
Compressors / Limiters (21):
API® 2500 Stereo Bus Compressor
dbx® 160 Compressor / Limiter
Empirical Labs EL8 Distressor
Fairchild 660 Compressor
Fairchild 670 Compressor
Fairchild 670 Legacy Compressor
Precision Buss Compressor
SSL® G Series Bus Compressor
SSL® G Series Bus Compressor Legacy
Teletronix LA-2 Classic Leveler
Teletronix LA-2A Gray Classic Leveler
Teletronix LA-2A Silver Classic Leveler
Teletronix LA-2A Legacy
Teletronix LA-2A Tube Compressor
Teletronix LA-3A Classic Audio Leveler
UA 1176 FET Compressor
UA 1176 Rev A Classic Limiter
UA 1176AE Classic Limiter
UA 1176LN Rev E Classic Limiter
UA 1176LN Legacy
UA 1176SE Legacy
Equalizers (9):
Helios Type 69 Legacy EQ
Neve® 1073 Legacy
Neve® 1073SE Legacy
Precision Equalizer
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 (9):
A-Type Multiband Dynamic Enhancer
Ampex® ATR-102 Mastering Tape Recorder
Little Labs® Voice Of God Bass Resonance
Oxide Tape Recorder
Precision De-Esser
Precision Enhancer Hz
Precision Enhancer kHz
Studer® A800 Multichannel Tape Recorder
Vibe Analog Machines Essentials
Instruments (1):
PolyMAX Polyphonic Synth
Delay & Modulation (8):
Brigade Chorus Pedal
Cooper® Time Cube MkII Delay
EP-34 Tape Echo
Galaxy Tape Echo
KORG® SDD-3000 Digital Delay
Precision Delay Mod
Precision Delay Mod L
Studio D Chorus
Reverbs & Rooms (6):
Lexicon® 224 Digital Reverb
Ocean Way Studios Deluxe
Ocean Way Studios
Precision Reflection Engine
Pure Plate Reverb
UAD Sound City Studios
Mastering (3):
Precision Limiter
Precision Maximizer
Precision Multiband
Guitar & Bass (9):
Bermuda Triangle
Fender® ’55 Tweed Deluxe
Raw Distortion
TS Overdrive Pedal
UAD Dream ’65 Reverb Amplifier
UAD Lion ’68 Super Lead Amp
UAD Ruby ’63 Top Boost Amplifier
UAD Showtime ’64 Tube Amp
UAD Woodrow ’55 Instrument Amplifier
LUNA Extensions (4):
Ampex® ATR-102 Master Tape Extension
API® Summing Extension
API® Vision Console Emulation
Studer® A800 Multitrack Tape Extension
Universal Audio Apollo x4 Gen 2 Analog Classics Pro Thunderbolt Interface Specifications
Product Specifications
Over 80 Included Plug-Ins in UAD Analog Classics Pro:
Vocals & Pitch Correction (2):
Topline Vocal Suite
Topline Key Finder
Channel Strips & Preamps (19):
API® Preamp
API® Vision Channel Strip
API® Vision Channel Strip Legacy
Avalon® VT-737sp Channel Strip
CS-1 Channel Strip
Century Tube Channel Strip
Helios® Type 69 Preamp & EQ
LA-6176 Signature Channel Strip
Manley® Reference Microphone Preamp
Manley® VOXBOX Channel Strip
Neve® 1073 Preamp & EQ
Neve® 88RS Channel Strip
Neve® 88RS Channel Strip Legacy
Precision Channel Strip
SSL® E Series Channel Strip
SSL® E Series Channel Strip Legacy
UA 610-A Preamp & EQ
UA 610-B Preamp & EQ
V76 Preamplifier
Compressors / Limiters (21):
API® 2500 Stereo Bus Compressor
dbx® 160 Compressor / Limiter
Empirical Labs EL8 Distressor
Fairchild 660 Compressor
Fairchild 670 Compressor
Fairchild 670 Legacy Compressor
Precision Buss Compressor
SSL® G Series Bus Compressor
SSL® G Series Bus Compressor Legacy
Teletronix LA-2 Classic Leveler
Teletronix LA-2A Gray Classic Leveler
Teletronix LA-2A Silver Classic Leveler
Teletronix LA-2A Legacy
Teletronix LA-2A Tube Compressor
Teletronix LA-3A Classic Audio Leveler
UA 1176 FET Compressor
UA 1176 Rev A Classic Limiter
UA 1176AE Classic Limiter
UA 1176LN Rev E Classic Limiter
UA 1176LN Legacy
UA 1176SE Legacy
Equalizers (9):
Helios Type 69 Legacy EQ
Neve® 1073 Legacy
Neve® 1073SE Legacy
Precision Equalizer
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 (9):
A-Type Multiband Dynamic Enhancer
Ampex® ATR-102 Mastering Tape Recorder
Little Labs® Voice Of God Bass Resonance
Oxide Tape Recorder
Precision De-Esser
Precision Enhancer Hz
Precision Enhancer kHz
Studer® A800 Multichannel Tape Recorder
Vibe Analog Machines Essentials
Instruments (1):
PolyMAX Polyphonic Synth
Delay & Modulation (8):
Brigade Chorus Pedal
Cooper® Time Cube MkII Delay
EP-34 Tape Echo
Galaxy Tape Echo
KORG® SDD-3000 Digital Delay
Precision Delay Mod
Precision Delay Mod L
Studio D Chorus
Reverbs & Rooms (6):
Lexicon® 224 Digital Reverb
Ocean Way Studios Deluxe
Ocean Way Studios
Precision Reflection Engine
Pure Plate Reverb
UAD Sound City Studios
Mastering (3):
Precision Limiter
Precision Maximizer
Precision Multiband
Guitar & Bass (9):
Bermuda Triangle
Fender® ’55 Tweed Deluxe
Raw Distortion
TS Overdrive Pedal
UAD Dream ’65 Reverb Amplifier
UAD Lion ’68 Super Lead Amp
UAD Ruby ’63 Top Boost Amplifier
UAD Showtime ’64 Tube Amp
UAD Woodrow ’55 Instrument Amplifier
LUNA Extensions (4):
Ampex® ATR-102 Master Tape Extension
API® Summing Extension
API® Vision Console Emulation
Studer® A800 Multitrack Tape Extension
Customer Reviews
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Ronaldo L. 🇧🇷
Verified Buyer
Eexcellent equipment, great delivery, fast,
Eexcellent equipment, great delivery, fast, efficient.
Published date
02/28/25
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Skyler B. 🇺🇸
Changed the game forever
Before I had the x4 I had a Scarlett gen 3 x4 it was ok but it missed body and character. The unison pre amps are so good let alone the software allowing you to use different pre amps emulations and other gear that I would’ve never thought to use without this it has taught me so much about music pro...
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