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FAQ: Apollo X Gen 2

Apollo X Gen 2 is the new and improved refresh to the original Apollo X Series rack-mount and desktop interface family. The new interfaces offer a refresh of the Twin X and x4 desktop interfaces as well as the x6, x8, x8p, and x16 rack-mount interfaces. The new models feature the following improvements:

  • New look & feel, with an updated industrial design
  • Improved D/A conversion and monitor/headphone outputs for best-in-class critical listening
  • Hear next-generation audio conversion with the widest dynamic range and lowest distortion of any Apollo
  • Assistive Auto-Gain for inputs and select Unison™ preamps from API, Neve, and SSL:
    • Note: Auto-Gain works with Apollo X Gen 2 Thunderbolt Audio Interfaces only.
    • Unison plug-ins that can be used with Auto-Gain:
      API Preamp, API Vision Channel Strip, API Vision Channel Strip Legacy, Neve Preamp, Neve 1073 Preamp & EQ, Neve 1084 Preamp & EQ, Neve 88RS Channel Strip, SSL 4000E Channel Strip.
  • Bass Management for Satellite and Subwoofer Speaker Integration, compatible with all Apollo X Gen 1 and Gen 2 audio interfaces
    • Supported modes: Stereo, 2.1, 5.1, 6.1, 7.1, 5.1.4, 7.1.4, and 9.1.6.
  • Apollo Monitor Correction with SoundID by Sonarworks® is compatible with Apollo X Gen 1 and Gen 2 audio interfaces.
  • New plug-in bundles, exclusively available with new Apollo X Gen 2 purchases. For more information about these Apollo plug-in bundles, see this article. 
    • UAD Analog Classics — Over 30 plug-ins
    • UAD Unison Preamp Bundle — Get 6 Unison Preamps
    • UAD Analog Classics Pro — Over 80 plug-ins
    • UAD Ultimate — 120+ plug-ins
    • UAD Complete — 200+ plug-ins
  • Between October 8th, 2024, and July 31st, 2026, new Apollo X Gen 2 interfaces come bundled with either Essentials+, Studio+, or Ultimate+ bundles.
    • For more information about Essentials+, Studio+, and Ultimate+ bundles, see this article.
  • From July 1st, 2026, to July 31st, 2026, when you register a new Apollo bundled with UAD Analog Classics, you will also get Essentials+, and when you register a new Apollo bundled with UAD Analog Classics Pro, you will also get Studio+. 
  • When you register a used Apollo X Gen 2 interface, you still get a collection of legacy plug-ins to get started. For more information about which plug-ins come bundled with used Apollo X Gen 2 interfaces, see this article

Below is a table demonstrating all specifications and differences between the new models:

Interface I/O Inputs Type Outputs Type Unison Preamps DSP Cores
Apollo Twin X DUO Gen 2 10 in / 6 out

2 mic

1 Hi-Z

2 line

8 ADAT

2 S/PDIF

2 Monitor

2 Line

1 Stereo Headphone

2 2
Apollo Twin X QUAD Gen 2 10 in / 6 out

2 mic

1 Hi-Z

2 line

8 ADAT

2 S/PDIF

2 Monitor

2 Line

1 Stereo Headphone

2 4
Apollo x4 Gen 2 12 in / 18 out

4 mic

2 Hi-Z

4 line

8 ADAT

2 S/PDIF

2 Monitor

4 Line

2 Stereo Headphone (4)

8 ADAT

2 S/PDIF

4 4
Apollo x6 Gen 2 16 in / 22 out

2 Mic

2 Hi-Z

6 Line

8 ADAT

2 S/PDIF

2 Monitor

6 Line

2 Stereo Headphone (4)

8 ADAT

2 S/PDIF

2 6
Apollo x8 Gen 2 18 in / 24 out

4 Mic

2 Hi-Z

8 Line

8 ADAT

2 S/PDIF

2 Monitor

8 Line

2 Stereo Headphone (4)

8 ADAT

2 S/PDIF

4 6
Apollo x8p Gen 2 16 in / 22 out

8 Mic

2 Hi-Z

8 Line

8 ADAT or 2 S/PDIF

2 Monitor

8 Line

2 Stereo Headphone (4)

8 ADAT or 2 S/PDIF

8 6
Apollo x16 Gen 2 18 in / 20 out

6 Line

2 AES/EBU

2 Monitor

16 Line

2 AES/EBU

0 6
Apollo x16D 18 in / 20 out

16 Dante

2 AES/EBU

16 Dante

2 Monitor

2 AES/EBU

0 6

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