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Universal Audio Apollo x4 Heritage Edition Desktop 12x18 Thunderbolt 3 Audio Interface with Real-Time UAD Processing


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audThe Universal Audio Apollo x4 Heritage Edition is a high-end desktop audio interface that provides 12 inputs and 18 outputs via Thunderbolt 3 connectivity. It features high-quality AD/DA converters and four Unison-enabled mic preamps, which allow you to emulate the sound of classic analog preamps and tape machines.

In addition to its hardware capabilities, the Apollo x4 Heritage Edition also includes real-time UAD processing, which allows you to run Universal Audio's acclaimed plug-ins directly on the interface. This means you can monitor and record through classic compressors, EQs, reverbs, and other processors, all with virtually no latency.

Other features of the Apollo x4 Heritage Edition include a built-in talkback mic, dedicated monitor outputs with built-in speaker switching, and compatibility with all major DAWs, including Pro Tools, Logic Pro X, Cubase, and Ableton Live.

Overall, the Universal Audio Apollo x4 Heritage Edition is a powerful and versatile audio interface that offers exceptional sound quality, flexible connectivity, and a wealth of processing options for recording, mixing, and mastering.

Universal Audio Apollo x4 Heritage Edition Features:

  • 12-in/18-out Thunderbolt 3 audio interface for Mac or PC, with onboard UAD-2 QUAD Core processing
  • Upgraded elite-class AD/DA conversion supplies an ultra-pristine signal path with 127dB dynamic range
  • 4 Unison preamps allow you to track through models of the industry’s most legendary hardware
  • Integrated talkback for easy communication and slating takes
  • Ultra-fast Thunderbolt 3 connectivity provides less than 2ms of latency and ample expandability
  • Includes a premium plug-in suite of 10 award-winning UAD plug-ins, along with the Realtime Analog Classics Plus plug-in bundle with accurate emulations of vintage analog hardware
  • Track and monitor through plug-ins with no latency
  • Compatible with UA’s LUNA software for ultra-tight hardware/software integration
  • Backward-compatible with Thunderbolt 1 and 2 Macs (does not support Thunderbolt 1 or 2 on Windows — adapter sold separately)

Tech Specs

  • Computer Connectivity:Thunderbolt 3
  • Form Factor:Desktop
  • Simultaneous I/O:12 x 18
  • A/D Resolution:24-bit/192kHz
  • Built In DSP/FX:UAD-2 Quad Core Processing, Realtime UAD Powered Plug-ins
  • Number of Preamps:4 x mic, 2 x instrument
  • Phantom Power:Yes
  • Analog Inputs:4 x XLR-1/4" combo (mic/line), 2 x 1/4" (Hi-Z)
  • Analog Outputs:2 x 1/4" (monitor), 4 x 1/4" (line out)
  • Digital Inputs:1 x Optical Toslink (ADAT, S/PDIF)
  • Digital Outputs:1 x Optical Toslink (ADAT, S/PDIF)
  • Headphones:2 x 1/4" TRS
  • Thunderbolt:1 x USB-C (Thunderbolt 3)
  • Software:UAD Realtime Analog Classics Plus plug-ins (VST, AU, AAX 64), 10 Heritage Edition plug-ins
  • OS Requirements - Mac:macOS 10.12 or later, Quad Core i7 Processor or higher
  • OS Requirements - PC:Windows 10 Anniversary update or later, Quad Core i7 Processor or higher, Thunderbolt 3 port required
  • Power Supply:12V DC power supply (included)
  • Height:2.60"
  • Width:9.17"
  • Depth:6.17"
  • Weight:3.2 lbs.
  • Manufacturer Part Number:APX4-HE

Please feel free to reach out to our knowledgeable sales staff with any additional questions!