User's Manual

Table Of Contents
Apollo Solo USB Manual Unison 166
Unison
What is Unison?
Unison is an exclusive analog/digital integration system that’s built into every
Apollo preamplifier. It’s the first and only way to truly emulate
classic analog mic preamp, guitar amp, and pedal behaviors in an audio interface.
Unison is an audio processing breakthrough that starts right at the source, the input
stage, allowing Apollo Solo USB’s preamps to sound and behave like the world’s most
sought-after tube and solid state preamps, guitar amps, and pedals — including their all-
important impedance, gain stage “sweet spots,” and component-level circuit behaviors.
Apollo Solo USB’s preamps are designed for high resolution, ultra-transparent translation
from microphone to converter. This clean hardware design is the foundation for adding
software color with UAD plug-in processing.
Unison-enabled UAD preamp, guitar amp, and pedal plug-ins reconfigure the physical
input impedance, gain staging response, and other parameters of Apollo Solo USB’s mic
preamp hardware to match the emulated hardware’s design characteristics.
Because the hardware and software are intricately unified, Unison provides continuous,
realtime, bidirectional control and interplay between Apollo Solo USB’s physical mic
preamp controls and the software settings in the Unison plug-in interface.
Controls on Apollo Solo USB’s top panel dynamically adjust the Unison plug-in’s
parameters to match the target preamp/guitar amp/pedal behavior. Correspondingly,
changing a setting in the Unison plug-in interface will modify Apollo Solo USB’s panel
settings.
Because Unison can be active on more than one mic channel, a complement of premium
emulated hardware is available concurrently.
Unison is enabled by loading a UAD Unison
plug-in into a dedicated Unison insert in Console
Dedicated Unison Inserts
(analog channels only)