Important Safety Information .......................................................................... 133
Technical Support ............................................................................. 136
Universal Audio Knowledge Base ..................................................................... 136
YouTube Support Channel ............................................................................... 136
Universal Audio Community Forums ................................................................ 136
Contact Universal Audio Support ..................................................................... 136
UAD System Manual5Table Of Contents
Introduction
The Authentic Sound of Analog
From project studios to multi-platinum mix engineers, UAD Powered Plug-Ins have been
winning over audio professionals for more than 15 years with their stunning analog
sound. The UAD library now features more than 100 plug-ins, co-created with the
biggest brands in audio. Developed by UA’s world-renowned team of DSP engineers, UAD
plug-ins set the standard by which all other audio plug-ins are judged.
The World’s Finest Analog Emulation Plug-Ins
From rare tube compressors and equalizers, to vintage reverb processors and tape
machines, UAD Powered Plug-Ins inject three-dimensional “out-of-the-box” analog sound
to your in-the-box mixes. Access over 90 plug-ins from Ampex, Lexicon, Fender, Studer,
Neve, Manley, SSL, EMT, API, MXR and more.*
Offload your Computer’s CPU with DSP Acceleration
With UAD Powered Plug-Ins, the actual processing is offloaded to UAD-2 hardware. This
frees up your computer to do other things, like mixing audio and running samplers or soft
synths.
Cross-Platform Compatibility with All Major DAWs
UAD Powered Plug-Ins are compatible with both Mac and Windows, and run smoothly in
all major DAWs including Pro Tools, Logic Pro, Cubase, Ableton Live, and more.
UAD Plug-In Craftsmanship: The Science Behind the Scenes
In developing UAD plug-ins, UA’s engineering group undertakes a thorough physical
modeling of classic audio hardware — “rebuilding” vintage analog gear in the digital
world, component by component. That’s how UAD plug-ins replicate the exact,
sometimes quirky, behavior of analog hardware — bringing its rich, three-dimensional
sound and harmonics “in the box.”
*All trademarks are recognized as property of their respective owners. Individual UAD Powered Plug-Ins sold separately.
UAD System ManualIntroduction 6
Features
All UAD-2 Devices
• 1, 2, 4, or 8 Analog Devices SHARC floating-point processors
• Multi-device support for up to six UAD-2’s in one system
• Compatible with VST, RTAS, AAX 64, and Audio Units plug-in formats
• Drivers optimized for modern multi-thread and multi-processor architectures
• Real-time and faster than real-time processing for mix bounces
• LiveTracklow-latency mode for monitoring, tracking, and performance
• LoadLock ensures resource availability on loaded plug-ins
• UAD Toolbar for preset management and accessing information
• Award-winning UAD Powered Plug-Ins from Ampex, Lexicon, Neve, Manley, SSL,
Studer, and more*
• 14-day full function demo for all UAD plug-ins; try before you buy
• UAD plug-ins available at the Universal Audio online store
UAD Meter & Control Panel application
• Configures global UAD-2 and UAD plug-in settings
• Facilitates automatic authorization of UAD plug-in licenses and UAD-2 devices
• UAD-2 resource meters for DSP and Memory loads
UAD-2 Satellite
• External form factor
• Thunderbolt: QUAD or OCTO in Thunderbolt enclosure
• FireWire: DUO or QUAD in FireWire enclosure
• USB: QUAD or OCTO in USB 3 enclosure
UAD-2 PCI Express Cards
• High-bandwidth x1 PCIe
• Full-height, short card form factor
• UAD-2 QUAD and OCTO card models available
*All trademarks are recognized as property of their respective owners. Individual UAD Powered Plug-Ins sold separately.
UAD System ManualIntroduction 7
UAD Documentation Overview
This section describes the various instructional and technical resources that are available
for installing, using, and troubleshooting UAD Powered Plug-Ins. Documentation for the
product line is available in written, video, and online formats.
Operation Manuals
Documentation for UAD-2 devices and UAD Powered Plug-Ins are separated by areas
of functionality, as described below. The user manuals are placed on the system drive
during software installation, and they can be downloaded at www.uaudio.com.
Note: All manual files are in PDF format. PDF files require a free PDF reader
application such as Adobe Acrobat Reader (Windows/Mac) or Preview (Mac only).
UAD System Manual
The UAD System Manual is the operation manual for overall UAD functionality and
applies to the entire UAD-2 product line. It contains detailed information about
installing, configuring, and operating UAD devices and plug-ins.
The UAD System Manual includes everything about UAD except Apollo-specific
information, and individual UAD plug-in descriptions.
UAD Plug-Ins Manual
The features and functionality of all the individual UAD Powered Plug-Ins are detailed in
the UAD Plug-Ins Manual. Refer to this document to learn about the operation, controls,
and interface of each plug-in.
Direct Developer Plug-Ins
UAD Powered Plug-Ins includes plug-ins from our Direct Developer partners.
Documentation for these 3rd-party plug-ins are separate files that are written and
provided by the plug-in developers themselves. The filenames for these plug-ins are the
same as the plug-in names.
Apollo Manuals
Apollo models have separate software and hardware manuals that document all the
features and functionality of Universal Audio’s line of audio interface products. These
manuals are installed along with the Apollo software. Arrow has its own manual.
Host DAW Documentation
Each host DAW software application has its own particular methods for configuring and
using plug-ins. Refer to the host DAW’s documentation for specific instructions about
using plug-in features within the DAW.
Hyperlinks
Links to other manual sections and web pages are highlighted in blue text. Click a
hyperlink to jump directly to the linked item.
Tip: Use the “back” button in the PDF reader application to return to the previous
page after clicking a hyperlink.
UAD System ManualIntroduction 8
Accessing Installed Manuals
To open the documentation folder, click the “Product Manuals” button in the Help Panel
within the UAD Meter & Control Panel application.
File locations
The UAD and Direct Developer manual files are copied to the hard drive by the software
installer to the following locations:
For additional instructional information or if you need to contact Universal Audio for
assistance, see the Technical Support page.
UAD System ManualIntroduction 9
UAD Installation
The UAD Powered Plug-Ins software must be installed to use UAD-2 devices. The UAD
installer places all the software necessary to configure and use UAD-2 hardware and UAD
plug-ins onto the computer’s startup drive. Complete details are in this chapter.
Additional Instructions
This UAD products below have unique connection and operation instructions. Refer to
the chapters below for detailed procedures with these products:
• UAD-2 Satellite Thunderbolt
• UAD-2 Satellite USB
• UAD-2 Satellite FireWire
• UAD-2 SOLO/Laptop
• Apollo interfaces have their own installation procedures and system requirements.
See the Apollo Manuals for specific details.
Windows & Mac
Software installation and removal for Windows and Mac platforms have their own
particular procedures. Instructions for each platform are detailed separately.
Software Updates
The most recent UAD software is always recommended so you’ll have access to the
latest UAD plug-ins and stability updates. The most recent software is available at the
UA website. If the UAD software is already installed, the UAD Meter & Control Panel
application has a convenient Check for Updates button that checks for the most recent
version.
Firmware Updates
For optimum results, always update the firmware if prompted by the software. Follow the
onscreen instructions to complete the process before attempting to use the software.
Preparation
Close all open files and applications before starting the software installation procedure.
The installer requires a restart after installation.
If you are updating to a newer version of UAD software or installing additional UAD
devices, it is not necessary to remove the previous UAD software or hardware from the
system.
Technical Assistance
If you need help, see the Technical Support page.
UAD System ManualUAD Installation 10
System Requirements
Note: For complete compatibility information, visit help.uaudio.com
All Platforms (Mac & Windows)
• 6 gigabytes available storage
• Internet connection to download software and authorize UAD plug-ins
• 2-in-1 systems (notebook/tablet) are not recommended
• USB 3 adapters (such as PCIe-to-USB 3 expansion cards) are not tested for Apollo Twin
USB connection
• Quad Core i7 or better processor recommended
UAD-2 PCIe Card Systems (Mac & Windows)
• (Win) Microsoft Windows 7, 8.1, or 10 (64-Bit Editions)
• (Mac) macOS 10.12 Sierra, 10.13 High Sierra, or 10.14 Mojave
• Available PCI Express (PCIe) slot for each UAD-2 card
UAD System ManualUAD Installation 11
Compatible DAW Host Applications
UAD Powered Plug-Ins are compatible with VST, RTAS, AAX 64, and Audio Units host
DAW applications, and are widely used with a variety of major DAW software — including
Pro Tools, Logic Pro, Cubase, Nuendo, Live, and more.
However, due to plug-in host differences between DAWs — and our own rigorous testing
standards — Universal Audio only officially tests the latest UAD software with:
• Avid Pro Tools 10, 11, and 12
• Apple Logic Pro X
• Steinberg Cubase 9
• Steinberg Nuendo 8
• Ableton Live 10
DAW Application Notes
• The most recent maintenance release of the DAW application is recommended.
• Pro Tools 10 is incompatible with UA Thunderbolt audio interfaces on Windows.
UAD System ManualUAD Installation 12
Installation on Windows Systems (FireWire and/or PCIe)
Note: To install UAD-2 Satellite USB on Windows systems, see the next page.
Install UAD Software First
Note: For optimum results, install the UAD software before installing/connecting
the UAD-2 hardware.
To install, register, and authorize UAD plug-ins:
Important: Verify the computer system date and time are set correctly before
installing the software and/or launching the UAD Meter & Control Panel
application for the first time.
1. Download the latest UAD software installer: www.uaudio.com/download
2. Open the downloaded installer application. The installer will guide you. Be sure to
restart the computer when prompted.
3. Shut down (power off) the computer. If the UAD device(s) is already installed or
you are updating to a newer version, bypass this step.
4. Install/connect and power on the UAD device(s) then start the computer.
Note: If prompted to update the firmware, see the procedure below.
5. After restarting, the default web browser launches and connects to the UA online
store. Follow the instructions on the web pages to create an account, register the
hardware, and authorize bundled UAD plug-ins.
6. After registration is complete, authorize the UAD device by following the
instructions on the registration web pages. The system is ready for use.
If the device was already registered, when the computer restarts the UAD Meter &
Control panel automatically opens and UAD plug-ins are automatically authorized in the
background.
Tip: You can use the UAD Meter & Control Panel to verify installation. See
Verifying Installation for details.
Firmware Update Procedure
If prompted by the “Firmware Update” dialog window to update the UAD-2 firmware:
1. Click “Load” to begin the process. The “firmware is updating” window appears.
2. Wait for the “Power Off UAD Device” dialog window, which appears after the
firmware is updated.
3. Power OFF the UAD-2 hardware, then power it back ON. The firmware update is
complete.
UAD System ManualUAD Installation 13
Installation on Windows Systems (Thunderbolt and/or USB)
Note: To install UAD-2 FireWire devices or PCIe cards on Windows systems, see
the previous page.
Connect And Power Hardware First
Note: For optimum results, connect and power the UAD-2 Satellite USB hardware
before installing the UAD software.
To install, register, and authorize Apollo and UAD plug-ins software:
1. Connect UAD-2 Satellite USB to a built-in USB 3 port on the computer with the
included USB 3 cable, then power on UAD-2 Satellite USB.
2. Download the latest UAD software installer: www.uaudio.com/download
3. Open the downloaded installer program. The installer will guide you. Be sure to
restart the computer when prompted.
Important: If prompted to update the firmware, see the procedure below.
4. After restarting, the default web browser launches and connects to the UA online
store. Follow the instructions on the web pages to create an account, register the
hardware, and authorize bundled UAD plug-ins.
5. After registration is complete, authorize the UAD device by following the
instructions on the registration web pages. The system is ready for use.
6. Proceed to UAD-2 Satellite USB Windows Setup to complete the setup process.
If the device was already registered, when the computer restarts the UAD Meter &
Control Panel automatically opens and UAD plug-ins are automatically authorized in the
background.
Note: To authorize a UAD system that is not connected to the Internet, see
“Offline Authorization Procedure” in the UAD System Manual.
Firmware Update Procedure
If prompted by the “Firmware Update” dialog window to update the firmware:
1. Click “Load” to begin the process. The “firmware is updating” window appears.
2. Wait for the “Power Off UAD Device” dialog window, which appears after the
firmware is updated.
Power OFF UAD-2 Satellite USB, then power ON UAD-2 Satellite USB. The firmware
update is complete.
UAD System ManualUAD Installation 14
Installation on Mac Systems
Install/Connect UAD Hardware First
Note: For optimum results, install/connect the UAD-2 hardware before installing
the UAD software.
To install, register, and authorize UAD plug-ins:
Important: Verify the computer system date and time are set correctly before
installing the software and/or launching the UAD Meter & Control Panel
application for the first time.
1. Shut down (power off) the computer.
2. Install/connect and power the UAD-2 device(s) then start the computer.
3. Download the latest UAD software installer: www.uaudio.com/download
4. Open the downloaded installer application. The installer will guide you. Be sure to
restart the computer when prompted.
5. After restarting, the default web browser launches and connects to the UA online
store. Follow the instructions on the web pages to create an account, register the
hardware, and authorize bundled UAD plug-ins.
Note: If prompted to update the firmware, see the procedure below.
6. After registration is complete, authorize the UAD device by following the
instructions on the registration web pages. The system is ready for use.
If the device was already registered, when the computer restarts the UAD Meter &
Control panel automatically opens and UAD plug-ins are automatically authorized in the
background.
Tip: You can use the UAD Meter & Control Panel to verify installation. See
Verifying Installation for details.
Firmware Update Procedure
If prompted by the “Firmware Update” dialog window to update the UAD-2 firmware:
1. Click “Load” to begin the process. The “firmware is updating” window appears.
2. Wait for the “Power Off UAD Device” dialog window, which appears after the
firmware is updated.
3. Power OFF the UAD-2 hardware, then power it back ON. The firmware update is
complete.
UAD System ManualUAD Installation 15
Installed Software Locations
The UAD Meter & Control Panel application, UAD plug-ins, and UAD documentation are
copied to the locations below on the system drive during installation:
PCI and PCI-X are different than PCI
Express (also known as PCIe). UAD-2
PCIe cards are not compatible with PCI
or PCI-X because PCIe uses a completely
different connector (as shown at right).
UAD-2 SOLO, DUO, QUAD, and OCTO
cards are all PCIe cards and will only
work in PCI Express (PCIe) slots. Be
careful to only install the UAD-2 card
into a PCIe slot.
UAD-2 PCIe Speed
UAD-2 cards are “x1” PCIe cards. Although these cards can be installed into any speed
PCIe slot (x1/x4/x8/x16), putting a them in any PCIe slot faster than x1 will not improve
UAD performance.
PCIe Card Handling
PCI/PCI-X and PCIe
connectors are incompatible
Before handling the UAD card, discharge any static electricity by touching the metal
casing of the power supply. Do not touch the gold edge connector contacts.
Installing UAD PCIe Cards
If necessary, refer to the computer manufacturer’s documentation for instructions about
installing PCIe cards.
Important: Ensure the computer (and PCIe expansion chassis, if applicable) is
powered off before installing the UAD-2 PCIe cards.
1. Power off the computer system (and PCIe expansion chassis, if applicable), then
open the computer case and remove the rear screw and cover of an available PCIe
expansion slot.
2. Hold the PCIe card gently by the top edges, and line up its connector with the slot
inside the computer.
3. When the connector and slot are aligned, press the card into the slot with firm,
even pressure. The card should “pop” into place. The top of the slot on the
motherboard should be flush and parallel with the edge of the UAD card.
4. Secure the card with the previously removed screw and replace the computer
case.
PCIe Installation is complete.
UAD System ManualUAD Installation 17
Online Authorization
Note: UAD devices must be registered, and UAD plug-ins must be authorized,
before they can be used.
After initial registration, UAD authorization is automatic. Simply restart the computer
and authorization is accomplished automatically in the background by the UAD Meter &
Control Panel application.
Whenever a new UAD-2 or Apollo device is connected (and the UAD software is
already installed), registration will begin automatically via the web browser. Follow the
instructions on the web pages to create an account, register the UAD device(s), and
claim bundled UAD plug-ins.
Automatic authorization requires the UAD host computer to be connected to the Internet.
To authorize a system that is not online, see the instructions below.
Offline Authorization
Note: UAD devices must be registered, and UAD plug-ins must be authorized,
before they can be used.
If the UAD computer is not connected to the Internet, you will need to manually
transfer the registration URL into the browser of a web-enabled computer, download an
authorization file on the web computer, then transfer the authorization file back to the
UAD computer.
To obtain and apply the UAD authorization file if not connected to the internet:
1. Install UAD Powered Plug-Ins software and the UAD hardware using the
procedures detailed in this chapter (the system must be operating properly).
2. Launch the UAD Meter & Control Panel application and open the Plug-Ins Panel.
3. Click the Authorize Plug-ins button. The default web browser opens with the
registration URL in the address bar (and you may get an error that the computer is
not connected to the Internet).
(continued)
UAD System ManualUAD Installation 18
4. You must enter this exact URL into a web-connected computer, so either:
a. Drag the URL icon in the browser’s address bar to the Desktop to create a
weblink shortcut (preferred; avoids transcription errors) then transfer the
weblink shortcut to the internet computer via a storage device or network, OR
b. Copy/paste the exact URL into a file that can be transferred (or carefully write
down the URL, EXACTLY as it appears in the address field).
1. Click+Hold URL icon
in browser address bar
2. Drag URL icon to
Desktop or flash drive
to create a link shortcut
Creating a web location shortcut on the offline UAD system
for easier transfer of the URL file to an online system
5. Go to the URL using a web browser on an Internet-connected computer. Double-
click the transferred weblink shortcut, or enter the URL as previously noted.
• If you don’t already have a UA account, you are directed to create one. Follow
the instructions online.
• If you already have a UA account, login with your email address and password.
If your password is lost, the store can email password reset link to you.
6. Your device will be automatically registered and added to your My UA Hardware
page, and your authorization file is generated.
7. The authorization file named “auth.uad2” should begin downloading automatically
(if not, click the download authorization link).
8. Transfer the authorization file to the UAD computer via a storage device or
network.
9. For optimum results, quit all open audio host applications (DAWs).
10. Double-click the authorization file. The authorization is loaded onto the UAD
device(s) and after a few seconds the “Authorizations Status” window appears.
Offline UAD authorization is complete and UAD plug-ins are ready for use.
UAD System ManualUAD Installation 19
Verifying Installation
The UAD Meter & Control Panelcontains the System Information panel, where UAD
software and hardware installation can be verified to ensure the system is working
properly.
To confirm proper UAD installation and operation:
1. Launch the UAD Meter & Control Panel application (see Launching the
Application).
2. Open the System Information Panel.
3. When the UAD device is displayed in the Hardware area and its status is “OK”
then the UAD driver is communicating with the UAD device and the system is
operating properly.
UAD-2 LED
The UAD-2 has an LED indicator. This LED provides certain indications about the
operational state of the UAD-2. The location of the LED depends on the UAD-2 product.
On UAD-2 PCIe cards, the LED is on the mounting bracket of the card. On SOLO/Laptop,
the LED is next to the UA logo on the black housing. On UAD-2 Satellite, the LED is on
the rear panel.
Alternating red and green
When the LED alternates between solid red and solid green, the device is powered up
properly but the UAD driver is not yet loaded or communicating with the device. This is
the expected state if the device is installed but the software is not yet installed, or after
booting the system and the UAD driver is not yet loaded. The driver loads when the UAD
Meter & Control panel or host DAW application is launched.
Solid green
When the LED is solid green, the UAD driver is loaded and properly communicating with
the device. This is the normal state when using UAD Powered Plug-Ins.
Solid red or other blinking patterns
When the LED is producing any pattern other than the two conditions above, there is
a problem with communication between the driver and the device. Try a cold reboot
(complete power down) and/or reinstalling the UAD software before contacting customer
support.
UAD System ManualUAD Installation 20
Software Removal
Important: Power down the computer before removing any UAD cards.
To remove all UAD software from the computer:
Windows
1. Go to: Control Panel>Programs>Programs and Features
2. Select “UAD Powered Plug-Ins”
3. Click “Uninstall”
The UAD software is removed.
Mac
1. Go to: Mac HD/Applications/Universal Audio
2. Launch the “Uninstall Universal Audio Software” application
3. Click “Uninstall UA Software” in the application’s window
The UAD software is removed.
Learn More
After installation, registration, and authorization, you’re ready to use UAD Powered
Plug-Ins. The Universal Audio Knowledge Base contains helpful videos that explain how
to install the hardware and software, register, authorize, and use the product, obtain
optional plug-ins, and more.
For additional instructional information or if you need to contact Universal Audio for
assistance, see the Technical Support page.
UAD System ManualUAD Installation 21
UAD System Overview
The UAD Environment
UAD Powered Plug-Ins is a hardware-plus-software system that consists of one or more
UAD-2 DSP accelerator devices and/or Apollo audio interfaces combined with the UAD
Powered Plug-Ins software.
Various UAD-2 products are available to accommodate your particular computer system,
processing needs, and budget. For the complete product lineup, visit the Universal Audio
website at www.uaudio.com.
System Components
The complete UAD Powered Plug-Ins environment consists of various components. These
components are:
• One or more UAD-2 DSP hardware accelerator devices
• The UAD plug-ins
• The UAD device drivers
• The host computer system
• The plug-in host application software (DAW)
• A computer audio hardware input/output interface and its drivers
• Your UA account and the UA store
All these components operate together simultaneously within one computer to form the
complete UAD audio processing system. An overview of these components is provided in
this chapter.
UAD System ManualUAD System Overview 22
The UAD Hardware
The UAD-2 DSP (Digital Signal Processing) hardware accelerator devices provide
the power behind UAD Powered Plug-Ins. Most UAD plug-ins use extremely complex
algorithms to provide the quality sound and accurate modeling Universal Audio is famous
for. The UAD processor engines are significantly more optimized to perform the complex
DSP routines required for these algorithms than a standard desktop computer CPU can
deliver.
All UAD-2 devices are Mac and Windows compatible unless otherwise specified. The
cross-platform hardware is identical for both OS platforms.
Note: Multiple UAD hardware types can be used concurrently in the same
computer system. For details, see Multiple UAD Devices.
UAD-2 Products
UAD-2 is UA’s second-generation UAD product line that offers many
improvements over the original UAD-1; most notable is significantly
increased DSP horsepower. Each UAD-2 DSP provides approximately 2.5
times the processing power of the UAD-1, therefore one UAD-2 OCTO
offers approximately 20 times the processing power of UAD-1.
A variety of UAD-2 models are available to suit various processing and protocol needs.
Each model is defined by its number of SHARC DSP cores (1, 2, 4, 6, or 8) and its
connection protocol (PCIe, FireWire, Thunderbolt, or USB 3). Up to six UAD-2 devices
can be run concurrently in one system; see the UA Knowledge Base for specific details
about compatibility with each model.
Note: UAD-1 is a discontinued product.
DSP Core Complement
The DSP core complement of UAD-2 devices is designated as
SOLO, DUO, QUAD, HEXA, or OCTO. These designations indicate
the number of SHARC® DSP (Digital Signal Processing) chips in
each device.
SOLO devices have one DSP core, DUO devices have two DSP
cores, QUAD devices have four DSP cores, HEXA devices (Apollo
X Series audio interfaces only) have six DSP cores, and OCTO devices have eight DSP
cores.
You can increase the amount of UAD DSP power by adding UAD devices to your system
as your UAD processing needs grow.
UAD System ManualUAD System Overview 23
UAD-2 PCIe Cards
UAD-2 PCI Express (PCIe) cards are available in QUAD and
OCTO core configurations. All UAD-2 PCIe cards use the PCIe x1
architecture, providing plenty of data bandwidth for even the most
demanding audio processing requirements, such as four UAD-2
OCTOs (32 DSP cores) in the same system.
Note: UAD-2 PCIe SOLO and UAD-2 PCIe DUO are discontinued products.
UAD-2 SOLO/Laptop
UAD-2 SOLO/Laptop is a self-contained UAD-2 SOLO device
housed entirely within an ExpressCard/34 expansion card
for use with notebook computers. No external cables or
power is required, for the ultimate in mobile DSP capability.
UAD-2 SOLO/Laptop has special instructions for installation,
connectivity, and use. For details, see UAD-2 SOLO/Laptop.
Note: UAD-2 SOLO/Laptop is a discontinued product.
UAD-2 Satellite
UAD-2 Satellite enables UAD plug-in QUAD or OCTO
processing with a variety of modern computer systems.
Three UAD-2 Satellite models are available, and each
model uses a different connection protocol. All models are
housed in rugged and attractive external enclosures.
• For Thunderbolt model details, see UAD-2 Satellite
Thunderbolt.
• For USB 3 model details, see UAD-2 Satellite
USB.
• For FireWire model details, see UAD-2 Satellite
FireWire.
UAD System ManualUAD System Overview 24
UA Audio Interfaces
Apollo are Arrow are UA’s line of high-resolution audio interfaces with class-leading
sound quality, Realtime UAD Processing, FireWire, Thunderbolt, or USB 3 connectivity,
and elegant hardware design and workflow.
The Apollo X Series is UA’s flagship audio interface lineup. Apollo X rackmount models
are the Apollo x6, Apollo x8, Apollo x8p, and Apollo x16, all of which feature HEXA core
DSP processing onboard. Apollo X Series desktop models include the Apollo x4 with
QUAD core processing, and Apollo Twin X with DUO or QUAD cores.
Other Apollo models include Apollo DUO/QUAD, Apollo FireWire, Apollo 8, Apollo 8p,
Apollo Twin, Apollo Twin USB, Apollo Twin MkII, Apollo 16, and Apollo 16 MkII.
Arrow is UA’s entry-level audio interface model with professional features at an affordable
price.
UA Audio Interface Documentation
UA audio interface products feature onboard UAD-2 processing. The UAD-2 functionality
of UA audio interface UAD-2 processing is documented in this manual. However,
functionality that is unique to UA audio interfaces is documented separately in the
Apollo Manuals.
Note: Throughout this manual, all mentions of “Apollo” refers to all Apollo models
unless noted otherwise.
Universal Audio’s family of audio interface models
UAD-2 Packages
UAD-2 devices are available in a variety of retail configurations to best accommodate
your budget and processing requirements. The products have various DSP core
complements (SOLO/DUO/QUAD/HEXA/OCTO), form factors (internal, rack mount,
desktop), connectivity (PCIe, Thunderbolt, FireWire, USB 3), and included plug-in
bundles. For complete details about all available products, visit the Universal Audio
website.
UAD System ManualUAD System Overview 25
The UAD Software
The UAD Powered Plug-Ins software consists of the UAD installer, the UAD plug-ins,
the UAD Meter & Control Panel application, the UAD device drivers, and the product
documentation.
UAD Installer
The UAD Powered Plug-Ins software installers contain all the UAD
software components (plug-ins, drivers, and documentation) and copies
them to the system drive during installation. The UAD software installers
support all variations of UAD-2 and Apollo devices.
UAD Powered Plug-Ins
UAD plug-ins are the VST, RTAS, AAX 64, and Audio Units plug-in files
that are loaded within the digital audio workstation application (DAW).
The plug-ins are where the graphical user interface (GUI) is seen and
where the various control parameters can be manipulated to achieve the
desired sonic results.
The UAD software installer always installs the complete suite of all
available UAD Powered Plug-Ins. However, all of the installed UAD plug-ins may not be
licensed. The included licenses depends on the retail package’s Bundled Plug-Ins.
Optional Plug-Ins
Most UAD plug-ins require optional licenses to run without restrictions. Optional
plug-in licenses are obtained at the UA online store. Plug-in licenses can be purchased
separately or in bundles.
Demo Mode
UAD plug-ins that are unlicensed can be run in Demo Modeas a 14-day trial period
without any functional restrictions.
Bundled Licenses and Coupons
The UA Account & Store is where bundled software and coupons are redeemed and
where additional licenses can be purchased.
Note: When you purchase an optional license, you don’t download that individual
plug-in. Instead, you download a newer authorization, which enables the plug-in
file that is already installed.
UAD System ManualUAD System Overview 26
UAD Meter & Control Panel
The UAD Meter & Control Panel application is used to authorize UAD
plug-ins after purchasing and to monitor/configure UAD device resources.
It has two main windows: the UAD Meter, and the UAD Control Panel.
The UAD Meter Window displays the current DSP, program, and memory
status of the UAD hardware. The UAD Control Panels has multiple panels
that display and modify various system, plug-in, and global configuration
parameters.
UAD Drivers
The UAD device drivers are the low-level system software files that instruct the host
computer system on how to communicate with the UAD hardware device(s). The UAD
drivers are loaded during system startup so the UAD devices are ready to be used when
the plug-in host DAW application is launched.
In addition to instructing the OS on how to control the UAD hardware, the driver acts as
a software “middleman” between the host application and the UAD hardware. The host
application uses the driver to route UAD signals in the DAW.
Each UAD device family (UAD-2 or Apollo) has its own set of drivers that are placed on
the system drive during UAD software installation.
UAD Buffers and Latency
The UAD drivers use buffers to shuttle audio signals to and from the device. This means
the digital data is transferred in small batches instead of continuously. Buffering induces
a very small audio latency (delay) that is inherent in most digital audio systems and can
be detected in certain situations.
UAD latency is managed automatically by most host DAW applications and can be
reduced to undetectable levels in the UAD-2 PCIe and UAD-2 Satellite Thunderbolt
using LiveTrack Mode. Latency and buffers are discussed in greater detail in Latency &
Delay Compensation.
Tip: Universal Audio’s line of Apollo high-resolution audio interfaces feature
Realtime UAD Processing for monitoring and tracking with UAD plug-ins at nearzero latency, regardless of the DAW’s I/O buffer size.
Product Documentation
Various instructional and technical resources are available for installing, operating,
and troubleshooting UAD Powered Plug-Ins. UAD documentation is available in
written, video, and online formats. For details about user documentation, see UAD
Documentation Overview.
UAD System ManualUAD System Overview 27
The DAW Environment
The DAW (digital audio workstation)
environment is a system where audio
production takes place (either with
or without UAD Powered Plug-Ins).
The UAD system is an add-on to
a computer-based DAW that can
dramatically improve the sonic
quality and performance of the DAW,
while still working entirely from
within the DAW.
A computer-based DAW consists of
the host computer hardware and
its operating system (OS) software, the plug-in host application (DAW software), and an
audio input/output (I/O) interface and its drivers.
Host Computer
The host computer is the system that the host DAW application software runs on and
the UAD devices are installed in or connected to. The host computer must meet certain
hardware and software System Requirements to use UAD Powered Plug-Ins.
Operating System
The host computer runs an operating system (macOS or Windows) that defines the
OS platform of the system. UAD Powered Plug-Ins is a cross-platform product that is
essentially functionally identical on Windows and Mac systems (except as otherwise
noted).
Host Application
The plug-in host application is the software DAW environment where audio recording,
playback, mixing, and other production functions are controlled. UAD plug-ins are
accessed and operated from within the host software application.
Each host application has a unique feature set and different methods of operation,
including how to use plug-ins. However, once UAD plug-ins are loaded, UAD plug-in
operation is identical in all host applications.
Because the host application environment is integral to the UAD system but is
completely out of our control, we cannot claim compatibility with all hosts that may
support use of the UAD plug-in formats. See Compatible DAW Host Applicationsfor
additional details.
Apollo Console
Universal Audio’s Apollo audio interfaces include a host application called Console.
Console controls Apollo’s functionality and enables Realtime UAD Processing, where I/O
buffering latency doesn’t exist.
UAD System ManualUAD System Overview 28
Plug-In Formats
UAD Powered Plug-Ins includes support for VST, RTAS, AAX 64, and Audio Units plug-in
formats. These formats define the software protocols that the host application uses for
plug-in processing.
UAD Powered Plug-Ins operations are (for practical purposes) functionally identical in all
three plug-in formats. The format of the installed UAD plug-in files are specified during
UAD software installation.
VST
The VST (Virtual Studio Technology) plug-in format is developed
by Steinberg and is supported by various Windows and Mac host
applications such as Cubase and Nuendo.
RTAS
The RTAS (Real-Time AudioSuite) plug-in format is developed by Avid
and is supported by Pro Tools 10 (and lower) on Windows and Mac
platforms.
AAX 64
The 64-bit AAX plug-in format is developed by Avid and is supported by
Pro Tools 11 (and higher) on Windows and Mac platforms.
Audio Units
The Audio Units (AU) plug-in format protocol was developed by Apple
and is supported by various host applications on the Mac platform only.
UAD System ManualUAD System Overview 29
Audio Interface
The audio hardware I/O (input/output) interface is how audio signals get into and out of
the host computer. An audio interface is a hardware+driver device that can have analog
or digital I/O (or both).
The interface is usually where the analog-to-digital (A/D) and digital-to-analog (D/A)
audio conversions take place. Universal Audio’s line of Apollo and Arrow products are
audio interfaces.
I/O Drivers
The audio interface is a hardware device that requires a software device driver for the
host computer OS. In addition to instructing the OS on how to control the interface
hardware, the driver acts as a software “middleman” between the host application and
the I/O ports. The host application uses the driver to access the I/O for signal routings.
I/O Buffers and Latency
As with UAD devices, audio interfaces also use buffers to shuttle audio signals to and
from the I/O. For details, see UAD Buffers and Latency.
Smaller I/O buffer settings produce lower latencies which is useful when monitoring
tracks while recording performances, but usually results in a higher host computer CPU
load since the system has to work harder transferring data. Latency and buffers are
discussed in greater detail in Latency & Delay Compensation.
Tip: Universal Audio’s line of Apollo high-resolution audio interfaces feature
Realtime UAD Processing for monitoring and tracking with UAD plug-ins at nearzero latency, regardless of the DAW’s I/O buffer size.
UA Store
The UA online store is where optional UAD plug-in licenses are purchased and where UA
coupons are redeemed.The UA store is where your UA account and its associated UAD
devices and plug-ins are managed. For details, see UA Account & Store.
Authorization
All UAD plug-ins must be authorized before they can be used. Authorization is automatic
when the UAD computer is connected to the Internet. For complete details about the
authorization system, see the UAD Authorization Overview.
UAD System ManualUAD System Overview 30
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