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Universal Audio Apollo x8 Heritage Edition Rackmount 18x24 Thunderbolt 3 Audio Interface with Realtime UAD HEXA Core Processing for Mac and Windows

SKU: UAPX8HE MFR: APX8-HE
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Key Features

  • Experience pristine audio quality with the Apollo x8's premium AD/DA converters.
  • Harness UAD HEXA Core processing for real-time effects while you're recording.
  • Achieve ultra-low latency for seamless tracking and overdubbing in your DAW.
  • Expand your studio with 18x24 Thunderbolt 3 connectivity for versatile I/O.
  • Elevate your mixes with included UAD plug-ins, adding warmth and character.
  • Integrate easily with Mac & Windows; ideal for professional music production.
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Special Order?Estimated to Ship: 08/19/2025
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Universal Audio Apollo x8 Specifications

General

General

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  • Form Factor

    Rackmount

  • Display

    10x Multi-Segment LED Meter

  • Channels of I/O

    Analog:
    8 Inputs / 14 Outputs at 192 kHz

    Digital:
    10 Inputs / 10 Outputs at 96 kHz

  • Max Sample Rate/Resolution

    192 kHz / 24-Bit

  • Number of Mic Preamps

    4

  • Input Level Adjustment

    1x Knob

  • Expansion Slots

    None

  • Pad

    -20 dB (Switchable per Channel)

  • Gain/Trim Range

    Inputs:
    +10 to +65 dB

  • High-Pass Filter

    75 Hz, 12 dB/Octave

  • Solo/Mute

    Mute per Master

Connectivity

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  • Analog Audio I/O

    4x XLR 3-Pin Balanced Mic Input
    2x 1/4" TS Unbalanced Hi-Z Input (Front Panel)
    8x 1/4" TRS Balanced Line Input
    2x 1/4" TRS Balanced Monitor Output
    8x 1/4" TRS Balanced Line Output
    2x 1/4" TRS Unbalanced Headphone Output

  • Phantom Power

    48 V, Selectable On/Off (Selectable on Individual Inputs)

  • Digital Audio I/O

    2x TOSLINK Optical ADAT Input (S/MUX4 Support)
    2x TOSLINK Optical ADAT Output (S/MUX4 Support)
    1x RCA Coaxial S/PDIF Input
    1x RCA Coaxial S/PDIF Output

  • Host Connection / USB

    1x USB Type-C (Thunderbolt 3)

  • USB (Non-Host)

    None

  • Sync I/O

    1x BNC Word Clock Input
    1x BNC Word Clock Output

  • Network I/O

    None

  • MIDI I/O

    None

  • Wireless Connectivity

    None

Performance

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  • Frequency Response

    Mic Inputs:
    20 Hz to 20 kHz +/-0.05 dB

    Hi-Z Inputs:
    20 Hz to 20 kHz +/-0.04 dB

    Line Inputs:
    20 Hz to 20 kHz +/-0.05 dB

    Monitor Outputs:
    20 Hz to 20 kHz +/-0.06 dB

    Line Outputs:
    20 Hz to 20 kHz +/-0.07 dB

    Headphone Outputs:
    20 Hz to 20 kHz +/-0.05 dB

  • Max Input Level

    Mic Inputs:
    +26 dBu (with Pad)

    Hi-Z Inputs:
    +12.4 dBu

    Line Inputs:
    +24 dBu (with Pad)

  • Max Output Level

    Line/Monitor Outputs:
    +24 dBu

  • Headphone Output Power

    150 mW into 300 Ohms

  • Impedance

    Hi-Z Inputs:
    1 Megohm

    Line Inputs:
    10 Kilohms

    Line Outputs:
    100 Ohms

    Mic Inputs:
    5.5 Kilohms

    Monitor Outputs:
    100 Ohms

    Word Clock :
    75 Ohms

  • Dynamic Range

    Mic Inputs:
    122 dBA

    Hi-Z Inputs:
    121 dBA

    Line Inputs:
    123 dBA

    Monitor Outputs:
    129 dBA

    Line Outputs:
    127 dBA

    Headphone Outputs:
    125 dBA

  • THD+N

    Mic Inputs:
    -114 dB / 0.0002% (1 kHz)

    Hi-Z Inputs:
    -111 dB / 0.00028% (1 kHz)

    Line Inputs:
    -113 dB / 0.00022% (1 kHz)

    Monitor Outputs:
    -118 dB / 0.00012% (1 kHz, at -1 dBFS)

    Line Outputs:
    -119 dB / 0.00011% (1 kHz, at -1 dBFS)

    Headphone Outputs:
    -102 dB / 0.0008% (1 kHz, at -1 dBFS)

Digital Audio

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  • Sample Rates

    Up to 192 kHz

  • Sample Rate Conversion

    None

  • Bit Depths

    24-Bit (AD/DA Conversion)

  • Latency

    1.1 ms at 96 kHz (Input to Output)

  • Sync Sources

    ADAT, Internal, S/PDIF, Word Clock

  • Clocking

    Word Clock:
    Input Termination: 75 Ohms (Switchable)
    Lock Range: 44.1 to 192 kHz +/-4% of Sample Rate

  • Memory Card Slot

    None

Compatibility

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  • OS Compatibility

    macOS 10.12 / 10.13 / 10.14 / 10.15
    Windows 10 (64-Bit, Only)

  • Included Software

    LUNA Mac Only

  • Compatible Software

    Any Core Audio (Mac) Compliant Software (Not Included)

  • Supported Drivers/API & Plug-Ins

    Proprietary

  • Processor Requirement

    Intel Core i7

  • Storage Requirements

    6 GB

  • Mobile Device Compatibility

    None

  • Required Hardware

    Available Thunderbolt 3 Port
    Thunderbolt Cable (Not Included)

  • Internet Connection

    Required for Registration and Software/Driver Download

  • Power Requirements

    AC/DC Power Adapter (Included)

  • AC Input Power

    100 to 240 VAC, 50 / 60 Hz

  • AC/DC Power Adapter

    12 VDC at 6 A (Included)

  • Power Consumption

    30 W (Typical)
    72 W (Maximum)

Physical

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  • Rackmount Size

    1 RU

  • Operating Temperature

    32 to 104 Degree F (0 to 40 Degree C)

  • Dimensions

    19 x 13.5 x 1.8" (48.3 x 34.3 x 4.6cm) (Including Controls and Protrusions)

  • Weight

    9.0 lbs (4.1kg)

  • UPC Code

    819937003066

About Universal Audio Apollo x8

Why settle for less when you can have the best The Apollo x8 Heritage Edition Rackmount 18x24 Thunderbolt 3 Audio Interface is a high-quality, professional-grade audio interface that offers advanced, innovative, and sophisticated features for both Mac and Windows users.

This audio interface is designed for music producers, project studios, and post-production studios, providing elite-class A/D and D/A conversion, HEXA Core UAD plug-in processing, Dual-Crystal clocking, and 7.1 surround sound monitoring. It's built on UA's 60-year heritage of audio craftsmanship, ensuring top-notch audio quality and performance.

The Apollo x8 stands out with its four Unison-enabled mic preamps and all-new HEXA Core processing, which provides 50% more DSP for running UAD Powered Plug-Ins in real time. It also includes the LUNA Recording System, a fully-integrated music production application that enhances your recording and mixing capabilities.

With its elite-class 24-bit/192 kHz converters and all-new analog circuitry, the Apollo x8 offers an ultra-pristine signal path for superior audio quality. It also features new Dual-Crystal clocking for stunningly low jitter and pure, artifact-free recordings.

The Apollo x8 also boasts new HEXA Core processing, with six DSP chips and 50% more UAD plug-in processing power than previous Apollos. This allows you to run more UAD plug-ins, whether you're tracking in real time with channel strips from Neve, Manley, or API, or running high UAD plug-in counts when mixing in your DAW.

Unison technology, a Universal Audio exclusive, allows you to track through exacting mic preamp emulations from Neve, API, Manley, Helios, SSL, and Universal Audio. This technology nails the tone of these sought-after tube and solid state mic pres, including their input impedance, gain stage "sweet spots," and the component-level circuit behaviors of the original hardware.

The Apollo x8 also includes the Realtime Analog Classics Plus plug-in bundle, so you can record and mix with the world's only authentic Teletronix LA-2A, 1176LN, and Fairchild compressors, the Unison-enabled UA 610-B Tube Preamp & EQ, and iconic guitar and bass amps from Marshall and Ampeg.

In addition to the included Realtime Analog Classics Plus plug-ins, the Apollo x8 lets you tap into the full UAD Powered Plug-In library of legendary vintage EQs, compressors, reverbs, tape machines, channel strips, and more.

The Apollo x8 Heritage Edition Rackmount 18x24 Thunderbolt 3 Audio Interface is more than just an audio interface; it's a complete audio solution that brings the power of a professional recording studio right to your desktop.

Universal Audio Apollo x8 Features

  • 18 x 24 Thunderbolt 3 audio interface with class-leading 24-bit/192 KHz conversion (backwards compatible with Thunderbolt 1 & 2 on Mac)
  • Realtime UAD HEXA Core Processing for tracking through UAD plug-ins at near-zero latency, regardless of audio buffer size
  • Record through 4 Unison-enabled mic/line preamps - giving you fully authentic preamp emulations from Neve, API, Manley, SSL, and moref
  • Includes access to LUNA Recording System for a fully-integrated, analog inspired Apollo workflow
  • Surround monitor controller up to 7.1 format
  • Includes the "Realtime Analog Classics Plus" UAD plug-in bundle. Other UAD plug-ins sold separately
  • UAD HEXA Core processing onboard for additional mixing horsepower for Pro Tools, Logic, Cubase, Ableton, and other major DAWs
  • Combine up to 4 Thunderbolt-equipped Apollos and 6 total UAD devices
  • Selectable +24 dBu operation for easy compatibility with professional mixing consoles and tape machines
  • Convenient front panel monitoring functions including Alt Speakers, Talkback mic, and assignable Dim or Mono
  • Free, industry-leading technical support - on the phone and online - from knowledgeable audio engineers

Product Documents

User Manual

Key Features

  • Experience pristine audio quality with the Apollo x8's premium AD/DA converters.
  • Harness UAD HEXA Core processing for real-time effects while you're recording.
  • Achieve ultra-low latency for seamless tracking and overdubbing in your DAW.
  • Expand your studio with 18x24 Thunderbolt 3 connectivity for versatile I/O.
  • Elevate your mixes with included UAD plug-ins, adding warmth and character.
  • Integrate easily with Mac & Windows; ideal for professional music production.

What's in the box:

  • Universal Audio Apollo x8 Heritage Edition Rackmount 18x24 Thunderbolt 3 Audio Interface with Realtime UAD HEXA Core Processing
  • External Power Supply
  • IEC Power Cable
  • 4x Rackmount Screws
  • 34x UAD Plug-Ins (Download)
  • LUNA Recording Software for Mac (Download)
  • (Thunderbolt Cable Not Included)
  • Universal Audio 1 Year Limited Warranty