Apollo Monitor Correction Add-on (download only)

Enhance your monitoring with SoundID Reference integrated directly into Universal 

Audioʼs Apollo X Gen 1 and Gen 2 interfaces. This add-on provides top-tier speaker 

and headphone calibration by Sonarworks, delivering accurate sound from stereo to 

multichannel with minimal latency. Achieve consistent, professional results across any 

listening environment, making it a must-have for both audio pros and enthusiasts. 

Key features 

→ Speaker and headphone calibration running directly on Apollo X hardware. 

→ Hardware calibration for popular stereo and surround speaker layouts (from 

stereo to 9.1.6. 

→ Hardware calibration for over 500 supported headphone models. 

→ Multiple outputs calibrated simultaneously: one speaker profile, and up to two 

headphone profiles (depending on the Apollo X model used) 

→ Calibrated bass management for stereo speaker setups with a subwoofer 

→ Supported target modes include: Flat, Dolby Atmos Music curve, user Custom 

Target and various device emulation targets via Translation Check. 

→ Near-zero-latency integrated performance. 

What's included 

→ Activation key for the Apollo Monitor Correction Add-on product license 

→ The add-on can be activated and used on 3 devices 

System requirements 

→ A valid permanent SoundID Reference license: 

○ SoundID Reference for Headphones - headphone profile integration 

○ SoundID Reference for Speakers and Headphones - headphone and 

stereo speaker (with subwoofer) profile integration 

○ SoundID Reference for Multichannel - headphone and multichannel 

speaker profile integration 

→ A supported Apollo X audio interface:  

○ Apollo X Gen 1: Apollo Twin X Duo/Quad, Apollo Twin X USB, Apollo x4, 

Apollo x6, Apollo x8, Apollo x8p, Apollo x16 

○ Apollo X Gen 2: Apollo Twin X Duo/Quad, Apollo x4, Apollo x6, Apollo x8, 

Apollo x8p, Apollo x16, Apollo x16D 

→ A supported operating system 

○ macOS 11 Big Sur, 12 Monterey, 13 Ventura, 14 Sonoma, 15 Sequoia 

○ Windows 10, 11 

→ UAD Console app v1.2.1 (or newer) installed, and UAD2 Software v11.5.1 (or 

newer) installed

Sound Id Integrations