User Manual
Apollo Twin MkII Hardware Manual Introduction 4
Introduction
Welcome to Apollo!
Superior Desktop Audio Conversion with 
Classic Analog Sound
With its class-leading resolution and Realtime 
UAD Processing, Apollo Twin MkII sets a new 
standard for desktop music production. This 2x6 
Thunderbolt interface for Mac and Windows allows 
you to record with near-zero latency through the 
full range of UAD Powered Plug-Ins — ingeniously 
merging classic analog tones with cutting-edge 
features.
Now You Can:
•  Record with world-class Apollo A/D and D/A 
conversion — as heard on hundreds of hit 
records
•  Cascade up to 4 Apollo interfaces and 6 
UAD-2 devices over Thunderbolt, adding 
DSP and I/O as your studio grows
•  Mix with UAD plug-ins like the included 
Teletronix® LA-2A, 1176, and Fairchild® 
compressors, Pultec® EQs, and 610-B 
Preamp
•  Track with near-zero latency through preamp 
emulations from Neve®, API®, Manley® 
and more using Unison™ technology*
Unison Technology: The Genuine Sound of Neve, API & Manley Preamps
Apollo Twin MkII features two Unison-enabled mic preamps, letting you track through 
exacting mic preamp emulations from Neve, API, Manley, and Universal Audio. An Apollo 
exclusive, Unison 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 secret to Unison is its hardware-software integration between Apollo Twin MkII’s mic 
preamps and its onboard UAD-2 SOLO, DUO, or QUAD Core DSP Acceleration. Simply 
place a Unison preamp plug-in on your mic input, and tap into the classic sounds of the 
world’s most recorded mic preamps.
MIC/LINE 1
MIC/LINE 2
3 L
4 R
LINE OUT MONITOR
OPTICAL IN
OFF ON
12VDC
POWER
MONITOR










