User Manual
Apollo 8 Hardware Manual Introduction 6
Apollo 8 Features
Key Features
•  Next-generation Apollo A/D and D/A conversion for professional music production
•  Onboard UAD-2 QUAD or DUO Core DSP allowing Realtime UAD Processing
•  4 Unison™-enabled mic preamps for tracking through preamp emulations from 
Neve, API, and Universal Audio*
•  18 x 24 Thunderbolt 2 audio interface with powerful Console 2.0 software control
•  Cascade up to 4 Apollo interfaces and 6 UAD devices total over Thunderbolt
•  Convenient front panel monitoring functions including Alt Speakers, and 
assignable Dim or Mono
•  Includes “Realtime Analog Classics Plus” plug-in bundle
•  World class UA analog design, superior components, and premium build quality
Audio Interface
•  Sample rates up to 192 kHz at 24-bit word length
•  18 x 24 simultaneous input/output channels
•  Eight channels of analog-to-digital conversion via mic, line, or high-impedance inputs
•  14 channels of digital-to-analog conversion via:
•  Eight mono line outputs
•  Stereo monitor outputs
•  Two stereo headphone outputs
•  10 channels of digital I/O via:
•  Eight channels ADAT Optical I/O with S/MUX for high sample rates
•  Two channels coaxial S/PDIF I/O with sample rate conversion
•  Two Thunderbolt 2 ports facilitates daisy-chaining of other Thunderbolt devices
Microphone Preamplifiers
•  Four high-resolution, ultra-transparent, digitally-controlled analog mic preamps
•  Unison™ technology for deep integration with UAD preamp and pedal plug-ins
•  Front panel and software control of all preamp parameters
•  Switchable low cut filter, 48V phantom power, pad, polarity inversion, and stereo 
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