Apollo Support Information

Apollo

This page is dedicated to Apollo & Apollo 16 compatibility and support. The following information is subject to change and may not always be up to date due to OS and DAW updates, or other factors beyond our control.

Last Updated: August 5, 2014

Jump to:
Latest News & Updates Support Videos General Info
System Requirements Windows Compatibility Mac Compatibility
Quick Start Powering Apollo Optimizing Performance
FireWire Bus Notes Multi-Unit Cascading General Usage Notes
Console Notes DAW Notes System Sleep
Thunderbolt Notes

Latest Technical News

Please review the information on this page carefully before installing or using Apollo or Apollo 16.

  • Some Apollo users have reported a Clock Source issue after installing the latest software.
    Symptom: No audio output after updating Apollo firmware. Apollo's clock setting has changed to an external source.
    Resolution: Manually switch Apollo's "Clock Source" setting from External back to Internal. The Clock Source setting is located in the Interface tab within Apollo's Console Settings window. Console Settings can be accessed from the blue UA diamond icon under the Mac OS Menu Bar at upper right of screen.
    This issue will be addressed in a future UAD software release.
  • Info on this page applies to both Apollo and Apollo 16. All references to "Apollo" on this page apply to both Apollo and Apollo 16 unless specifically noted otherwise (Apollo Twin has its own support page).
  • (Mac) If using Apollo Thunderbolt software (Thunderbolt PCIe audio drivers) with the Thunderbolt Option Card, please review the Thunderbolt support page for technical details.
    Important: Apollo software with Thunderbolt PCIe audio drivers (UAD v7.7.1, v7.8.1, and v7.9.1) disables Apollo's FireWire ports. For more info, click here.
  • (Mac) For important information about Apple Mac Pro (Late 2013) compatibility, click here.
  • The order in which Apollo and other FireWire devices are powered on is important for proper initialization. For optimum results, follow the recommended power up sequences.
  • UAD version 7.5.0 (and higher) includes the FREE UA 610-B Tube Preamp and EQ plug-in for all Apollo users, and introduces exclusive Unison preamp integration technology for Apollo DUO/QUAD. For a complete list of changes and detailed release notes, see the UAD version history. See the Apollo Software Manual for Unison instructions.

Support Videos

“Apollo

Videos to help you get started with Apollo and Apollo 16

Check out our support videos to help you set up and use Apollo:

  • Flex Routing – Features new in UAD v7.1 for Apollo and Apollo 16
  • My.Uaudio – Creating and navigating your My.Uaudio account
  • Console – An overview of Apollo's Console application
  • Pro Tools – Setting up Apollo with Avid Pro Tools
  • Logic Pro – Setting up Apollo with Apple Logic Pro
  • Cubase – Setting up Apollo with Steinberg Cubase
  • Live – Setting up Apollo with Ableton Live

General Information

Apollo documentation

After software installation, all Apollo and UAD user manuals are at these locations on the hard drive:

  • (Mac) Macintosh HD/Applications/Universal Audio/Documentation
  • (Win) Start Menu>All Programs>UAD Powered Plug-Ins>Documentation
  • All user manuals can also be accessed by clicking the "View Documentation" button in the Help panel of the UAD Meter & Control Panel application.

Apollo operation manuals can also be downloaded here:

  • Hardware Manuals: Apollo | Apollo 16  – Hardware controls, physical inputs/outputs, and specifications
  • Apollo Software Manual – Console application, Console Recall plug-in, workflows, and device drivers
  • UAD System Manual – UAD Meter & Control Panel application and UAD-2 instructions not specific to Apollo
  • UAD Plug-Ins Manual – Specific details about individual UAD Powered Plug-Ins

Other general information

System Requirements — Apollo and Apollo 16

    For information about Apple Mac Pro (Late 2013) compatibility, click here.

    • (Win) Windows 7 64-Bit Edition w/SP1
    • (Mac) OS X 10.8.5 Mountain Lion or 10.9.x Mavericks
    • 2 gigabytes available disk space
    • Available PCI Express (PCIe) slot for each UAD-2 card
    • Available FireWire 800 port* for UAD-2 Satellite, Apollo, or Apollo 16
    • 1024 x 800 minimum display resolution
    • Internet connection to download software and authorize UAD plug-ins
    • Compatible VST, Audio Units, RTAS, or AAX 64 plug-in host application software

    *On Windows systems, Apollo, Apollo 16, and UAD-2 Satellite, a compatible PCIe to FireWire adapter card is required. See the product support pages for details: Apollo | UAD-2 Satellite

    Operating systems not listed above are untested. Although untested operating systems may work, they are not supported by UA. Prior UAD software for older operating systems and discontinued UAD products is available in the UAD software archives.

Important:

  • For additional Apollo details, see the System Compatibility sections below (Mac | Win).

Windows 7 System Compatibility

Known compatible and incompatible Windows systems, and UA-tested PCIe-to-FireWire 800 adapter cards, are listed in this section. Additionally, the host computer must meet the minimum system requirements listed above.

Important Windows 7 Compatibility Notes

  • System sleep is not supported with Apollo. See the system sleep section below for details.
  • FireWire device connections while powered (hot-plugging) are not supported with Apollo.
  • Apollo and UAD-2 Satellite are compatible with 64-bit editions of the Windows 7 operating system with Service Pack 1 only. 32-bit editions of Windows 7, and all older Windows operating systems, are unqualified. Although these operating systems may work, they are untested and unsupported.
  • Apollo and UAD-2 Satellite require one of the UA-tested PCIe-to-FireWire 800 adapter cards listed below.
  • Built-in FireWire ports on any Windows computer are incompatible.
  • Only ASIO and WDM driver modes are supported.

About System Performance

  • Generally speaking, modern systems (less than three years old) with a quad-core or better processor, such as an Intel i7, and 8 GB RAM are recommended for maximum performance due to significant improvements in the underlying technologies.
  • Older underpowered systems may not deliver expected performance.

Incompatible Windows Systems

  • The Dell Precision T3500 desktop computer is incompatible with Apollo and UAD-2 Satellite.
  • Built-in FireWire ports on any Windows computer are incompatible with Apollo and UAD-2 Satellite (a UA-tested PCIe-to-FireWire 800 adapter is required for all PC systems).
  • Windows PC notebook (laptop) computers are incompatible with Apollo and UAD-2 Satellite.
  • UAD-1 devices are incompatible with Apollo and UAD-2 Satellite.
  • Apollo's Thunderbolt Option Card is not supported on Windows systems.
  • Using Apple's Boot Camp to run Windows 7 on Mac systems with Apollo audio interfaces or UAD-2 devices is an untested configuration.
  • If using UAD-2 PCIe cards in conjunction with Apollo, see the UAD-2 PCIe support page for related incompatibility information.

Compatible PCIe-to-FireWire 800 Adapter Cards for Windows 7 Systems

  • The following PCIe-to-FireWire 800 adapter cards are tested for use with Apollo and UAD-2 Satellite on Windows 7 64-bit systems.
  • Daisy-chaining external FireWire hard drives off Apollo and UAD-2 Satellite is not tested. External FireWire hard drives can be connected to a separate FireWire adapter card so they have their own FireWire bus.
Brand Model Format Controller Source
Sonnet Technologies Allegro FW800-E PCIe-to-FireWire 800
TI XIO2213 www.sonnettech.com
SIIG
NN-FW0012-S1 PCIe-to-FireWire 800
TI XIO2213
www.amazon.com

Important: These PCIe-to-FireWire adapter cards are tested with the FireWire driver included with Windows 7. When installing the cards, Windows will automatically use the built-in driver. To avoid unexpected behavior, DO NOT UPDATE THE DRIVER from the manufacturer's software disk or website, even if instructed to do so by the documentation included with the adapter cards.

Note: The previously-qualified Syba SD-PEX30009 PCIe-to-FireWire adapter card is no longer used for internal testing.

Tested Windows Systems

  • The following Windows computers have been qualified in-house for compatibility with Apollo and UAD-2 Satellite. Although other systems may work (subject to system requirements), these systems are known to perform well with Apollo and UAD-2 Satellite.
HP h8-1308t
Intel i7 3820 @ 3.6GHz
10GB RAM - DDR3 PC3-12800
Pegatron 2ACE Motherboard
Windows 7 Home Premium (64-bit)
HP s5-1217
Intel G630 @ 2.7GHz
4GB RAM - DDR3 PC3-10700
HP H-CUPERTINO2-H61-uA TX Motherboard
Windows 7 Home Premium (64-bit)
Dell Vostro 260
Intel i7 2400 @ 3.1GHz
4GB RAM - DDR3 PC3-10600
Dell 0GHG8Y Motherboard
Windows 7 Professional (64-bit)
Dell Inspiron 660s
Intel G630 @ 2.7GHz
4GB RAM - DDR3 PC3-12800
Dell 0478VN Motherboard
Windows 7 Professional (64-bit)
SweetWater Creation Station
Intel i7 2600 @ 3.4GHz
8GB RAM - DDR3 PC3-10700
Intel DH67CL Motherboard
Windows 7 Home Premium (64-bit)
ADK AM3
AMD Phenom II x6 1055T @ 2.81GHz
4GB RAM - DDR3 PC3-12800
Gigabyte G!-990FXA-UD3 Motherboard
Windows 7 Ultimate (64-bit)

Mac System Compatibility

About Mac Compatibility

  • Important: If using the Thunderbolt Option Card with Apollo, please review the Thunderbolt support page for technical details.
  • For important information about Apple Mac Pro (Late 2013) compatibility, click here.
  • Compatible and incompatible Mac systems, and tested FireWire 800 adapters, are listed below. Additionally, the host computer must meet the minimum system requirements listed above.

Tested Mac Systems

  • Mac system compatibility identification is based on the Mac Model Identifier (see "how to find" below).
  • Intel-based Mac systems with FireWire 800 have been tested in-house. Older Intel-based Macs with FireWire 400 only (those without Firewire 800) have not been fully tested with Apollo but we are not currently aware of any compatibility issues with those models (exception: MacBook Pro 3,1 “15-inch Mid/Late 2007” is not compatible).

Partially Compatible Mac Systems

The following Intel-based Mac systems with FireWire 800 are known to run Apollo at FireWire 400 speeds only*: 

MacBook Pro 1,2 (17")
MacBook Pro 3,1 (17")
Mac Pro 1,1
MacBook Pro 2,1 (17")
MacBook Pro 4,1 (15")
Mac Pro 2,1
MacBook Pro 2,2 (15")
MacBook Pro 4,1 (17")
iMac 6,1

*Adding a PCIe-to-FireWire or ExpressCard34-to-FireWire adapter to these systems can add FireWire 800 compatibility.
See list of recommended adapters below.

Incompatible Computer Systems

  • PowerPC-based Mac systems are incompatible with Apollo
  • UAD-1 devices are incompatible with Apollo
  • The MacBook Pro 3,1 (“15-inch Mid/Late 2007”) is incompatible with Apollo

How to find the Mac Model Identifier

The Mac Model Identifier (e.g., “MacBookPro2,2” at right)
is found in the Hardware Overview panel of the System Information application located in /Applications/Utilities.
Tip: As a shortcut, option-click the Apple icon in the menu bar (upper left of screen), then select the application from the drop menu.

Recommended FireWire Adapters and Repeaters for Mac Systems

FireWire adapter and repeater compatibility is based on the FireWire controller integrated circuit chip that is inside the various available retail products. The “known good” controller chips that have been tested in house are:

  • TI XIO2213
  • LSI FW643

FireWire adapters and repeaters that use either of these chips should perform well with Apollo. All other controllers we tested have proven to be unreliable with Apollo.

There is no reliable way to determine which FireWire controller chip a given adapter uses, other than viewing the silkscreen numbers on the IC chip itself. All the FireWire products listed in the following tables use one of the qualified controller chips.

Apple Thunderbolt to FireWire Adapter

The Apple Thunderbolt to FireWire Adapter has been tested in-house and there are currently no known issues when using it with Apollo or UAD-2 Satellite.

Recommended PCIe-to-FireWire 800 Adapters for Mac Systems

The following PCIe-to-FireWire adapters have been tested for use with Apollo and UAD-2 Satellite. Please note:

  • These cards are NOT recommended for Mac Pro 1,1 or 2,1 models.
  • The previously-qualified Syba SD-PEX30009 PCIe-to-FireWire adapter card is no longer being used for internal testing.
Brand Model Format Controller Source
Sonnet Technologies Allegro FW800-E PCIe-to-FireWire 800
TI XIO2213 www.sonnettech.com
SIIG
NN-FW0012-S1 PCIe-to-FireWire 800
TI XIO2213
www.amazon.com

Recommended ExpressCard34-to-FireWire 800 Adapters for Mac Systems

Important: To disconnect Apollo when it is connected to an ExpressCard-to-FireWire adapter, unplug the FireWire cable instead of removing the ExpressCard adapter to avoid system instability.

The following ExpressCard-to-FireWire adapters have been qualified for use with Apollo:

Brand Model Format Controller Source
StarTech EC1394B2 ExpressCard34 TI XIO2213 www.buy.com
StarTech EC13941A1B ExpressCard34 TI XIO2213 www.amazon.com

Recommended FireWire Repeaters for Mac Systems

FireWire repeaters are used to add additional FireWire ports to a FireWire bus and/or to provide FireWire bus power to devices that require it (such as the Apogee Duet audio interface). Repeaters are recommended instead of FireWire “hubs,” which may not perform optimally.

The following FireWire repeaters have been qualified for use with Apollo:

Product Format Notes Source
Unibrain FireRepeater 400 – 3 Port 1394A (FW 400)
External Power Supply Required
(Sold Separately)
www.1394store.com
Gefen FireWire 400 Repeater 1394A (FW 400)
 External Power Supply Required
(Sold Separately)
www.gefen.com
Unibrain FireRepeater 800 – 3 Port 1394B (FW 800)
 External Power Supply Required
(Sold Separately)
www.1394store.com
Unibrain FireRepeater-800 PRO – 4 Port 1394B (FW 800)
 External Power Supply Required
(Sold Separately)
www.1394store.com

Incompatible FireWire Hubs

Note: DO NOT USE these hubs with Apollo or UAD-2 Satellite:

  • Belkin F5U526 FireWire 6-Port Hub
  • IOGEAR Hi-Speed USB 2.0/FireWire 7-Port Hub
  • Belkin F5U507 Hi-Speed USB 2.0 and FireWire 6-Port Hub for Mac mini

Quick Start: Installation, Registration, and Authorization

Follow the steps below to prepare Apollo for use.

  1. Install the UAD Powered Plug-Ins software
    Launch the UAD installer downloaded from our website. The installer will guide you through the process. Shutdown the computer before connecting Apollo.
  2. UAD Installer Icon

     

  3. Connect and power Apollo then restart the computer.
    Connect Apollo to AC power with the included external power supply, then connect Apollo to the computer with a FireWire 800 cable (included). Power Apollo on with the front panel switch, then start the computer. On Windows systems, the Apollo software is installed automatically after restarting.
    Note: Turn off any connected speakers before powering Apollo.
  4.  

  5. Open the UAD Meter & Control Panel application
    (Mac) The application can be accessed under the blue UA diamond icon in the OS X Menu Bar at upper right of screen, or click its icon in the Dock.
    (Win) The application can be accessed from the Windows System Tray, or select the application from: Start Menu>All Programs>UAD Powered Plug-Ins>UAD Meter & Control Panel.
  6. UAD Meter & Control Panel icon

     

  7. Firmware Updates
    Important: For optimum results, always update the firmware by clicking "Load" when prompted by the UAD software. The software will guide you through the firmware update process; be sure to follow the instructions on screen. Do not interrupt system power during any firmware update routines.
  8.  

  9. Open the “Plug-Ins” panel within the UAD Meter & Control Panel application
    Access the Plug-Ins panel by clicking the menu button in the UAD Meter window and selecting “Plug-Ins...” from the drop menu, or type Command-P (Mac) or Control-P (Win) as a shortcut.
  10.  

  11. Click the “Authorize Plug-Ins...” button
    Your web browser will launch and connect to the UA store. Our web pages will guide you through the process of creating an account, registering your hardware, and claiming bundled plug-ins. If your computer is not connected to the Internet, consult the UAD System Manual for offline authorization procedures.
  12.  

  13. Download the Authorization file
    Click the blue “Download Authorizations»” button on on the final web page to download the authorization file.
  14.  

  15. Load the Authorization file
    Double-click the downloaded auth.uad2 file (the file is downloaded to the default location specified by the web browser). After a few moments the Authorization Status window appears; click “OK” and UAD Powered Plug-Ins are ready for use.
  16.  

  17. Important! Adjust Apollo's FireWire setting
    To maximize Apollo performance, adjust the UAD Bandwidth Allocation setting in the UAD Meter & Control Panel. See Optimizing FireWire Performance in the next section for instructions.

Important: Optimizing FireWire Performance

(Mac) Note: This entire section does not apply when Apollo is connected to the computer via Thunderbolt.

About FireWire Bandwidth

FireWire bandwidth is shared between Apollo I/O streams, UAD plug-ins used within the DAW, and external FireWire hard drives. Available bandwidth also depends on the session sample rate; the higher the sample rate, the more bandwidth is consumed. FireWire bandwidth is displayed in the “FBW” meter in the UAD Meter & Control Panel application:

UAD Meter FireWire Bandwidth

UAD Bandwidth Allocation

The UAD Bandwidth Allocation setting reserves FireWire bandwidth for UAD plug-ins used within a DAW (it has no effect on UAD plug-ins used in Console, nor when connected to the host computer via Thunderbolt). The default value (65%) a good starting point for most single-unit users; it should be adjusted according to your particular environment. Use the values in the table below as starting points when tuning the UAD Bandwidth Allocation.

Recommended UAD Bandwidth Allocation Values

Sample Rate (kHz): 44.1, 48 88.2, 96 176.4, 192
Without external FireWire hard drive: Mac: 80%
Win: 75%
Mac: 65%
Win: 55%
Mac: 55%
Win: 45%
With external FireWire hard drive: Mac: 55%
Win: 30%
Mac: 40%
Win: 25%
Mac: 25%
Win: 15%
I/O buffer setting for best playback results: 512 1024 2048

Note: When multi-unit cascading with two Apollo units, less bandwidth is available so external FireWire hard drives are not recommended. See "Multi-Unit FireWire Bandwidth" in the Apollo Software Manual for related information and recommended UAD Bandwidth Allocation values when multi-unit cascading.

To change the UAD Bandwidth Allocation setting:

  1. Quit all DAW software and the Console application (UAD hosts must be quit to change this setting).
  2. Open the UAD Meter & Control Panel application:
    (Mac) The application can be accessed under the blue UA diamond icon in the OS X Menu Bar at upper right of screen, or click its icon in the Dock.
    (Win) The application can be accessed from the Windows System Tray (blue UA diamond icon), or select the application from: Start Menu>All Programs>UAD Powered Plug-Ins>UAD Meter & Control Panel.
  3. UAD Meter & Control Panel icon

     

  4. Open the “FireWire” panel within the UAD Meter & Control Panel application. Access the FireWire panel by clicking the menu button in the UAD Meter window and selecting “FireWire...” from the drop menu, or type Command+F (Mac) or Control+F (Win) as a shortcut.
  5. UAD Meter Menu

     

  6. Change the UAD Bandwidth Allocation setting (shown below) by clicking the up or down arrows, or click+hold the value for a drop menu.
  7. UAD Bandwidth Allocation

 

UAD Bandwidth Allocation Notes:

  • Important: If switching to a higher sample rate, set the UAD Bandwidth Allocation BEFORE opening a session.
  • UAD Bandwidth Allocation values in the table above are recommended as starting points for FireWire bandwidth tuning. Depending on external FireWire hard drive usage (e.g., how many audio tracks are being streamed), lower values may be needed for increased FireWire hard drive loads, or higher values can be used for increased UAD plug-in counts when FireWire hard drive usage is lower.
  • To run more UAD plug-ins within a DAW, use USB, eSATA, or internal hard drives for audio session files instead of FireWire drives.
  • The UAD Bandwidth Allocation only applies when UAD plug-ins are used within a DAW. FireWire bandwidth is not consumed by UAD plug-ins used within Console, nor when Thunderbolt is used for the host computer connection.
  • (Mac) FireWire performance is better on some systems versus others due to the FireWire controller chips they contain. In general, newer Mac Pro, iMac, and Mac mini systems contain a superior FireWire controller chip and will deliver better FireWire performance than MacBook Pro systems. There is no simple method to determine which controller is used.
  • (Mac) When the Thunderbolt Option Card is used for Apollo's host computer connection, optimizing FireWire performance is not applicable because UAD plug-ins used in the DAW are streamed via PCIe instead of FireWire. The UAD Bandwidth Allocation parameter is unavailable when Apollo is connected via Thunderbolt. See the Thunderbolt support page for additional information.

Powering Apollo Systems

The order in which Apollo and other FireWire devices are powered on is important for proper initialization. For optimum results, follow the recommended power up sequences below.

Important: System sleep and/or connecting devices while they are powered (hot plugging) are not supported.

Recommended Apollo Power Up Sequence

Note: Turn off any connected speakers before powering Apollo.

  1. Shut down (power off) the host computer system
  2. Power off all connected FireWire devices (Apollo, UAD-2 Satellite, hard drives, repeaters, etc)
  3. Confirm all FireWire connections
  4. Power on all FireWire devices except Apollo
  5. Power on Apollo
  6. Start the host computer.

Recommended Power Up Sequence when Multi-Unit Cascading

Note: Turn off any connected speakers before powering Apollo.

  1. Shut down (power off) the host computer system
  2. Power off all connected FireWire devices (Apollo, hard drives, repeaters, etc)
  3. Confirm monitor/expander designations and all device wiring (see "Multi-Unit Cascading: Wiring" section above)
  4. Power on all FireWire devices except Apollo
  5. Power on the Apollo monitor unit
  6. Power on the Apollo expander unit
  7. Start the host computer.

Important: (UAD v7.7.0 and earlier only) If multi-unit cascading via Thunderbolt (Mac only), power up the expander unit before the monitor unit.

FireWire Bus Notes

FireWire Bus Power

  • The included power supply is required for Apollo operation. Apollo cannot be bus powered.
  • Apollo does not supply bus power from its FireWire ports to other devices.
  • When using a FireWire device that requires bus power, connect that device directly to a FireWire port that supplies bus power, such as the host computer itself, or an externally powered FireWire repeater that is specifically designed to supply bus power.

Combining Apollo with other FireWire devices

  • As a general guideline, Apollo should be powered on after all other FireWire devices on the bus are powered on (except when used with UAD-2 Satellite, as noted below).
  • If UAD-2 Satellite is on the same FireWire bus as Apollo, the UAD-2 Satellite must be powered on after Apollo is powered on.
  • See Multi-Unit Cascading below for related information.

Mac Pro FireWire Ports

  • Mac Pro systems have FireWire ports on the front and rear of the computer. Connect Apollo to a FireWire port on the rear of the Mac Pro. The front panel FireWire port is untested.

FireWire Bus Tuning

  • To maximize FireWire bus performance, the UAD Bandwidth Allocation may need to be adjusted. See Optimizing FireWire Performance above for additional information.

Multi-Unit Cascading via FireWire

Note: This section only applies when connecting to the computer via FireWire. If connecting to the computer via Thunderbolt, see the Thunderbolt support page for multi-unit cascading information.

Multi-Unit Cascading: Combining two Apollo or Apollo 16 units

  • Multi-unit cascading of two Apollo or Apollo 16 units together in one computer system is a supported configuration
    as of UAD version 7.0.
  • Combining Apollo with Apollo 16 in one computer system is an unsupported configuration.
  • Combining Apollo or Apollo 16 with Apollo Twin in one computer system is an unsupported configuration.
  • Three or more Apollo products cannot be combined in one computer system.
  • For all details and complete operating instructions with two Apollo units, see "Chapter 6: Multi-Unit Cascading" in
    the Apollo Software Manual.

Multi-Unit Cascading: Operation Notes

  • To facilitate Realtime UAD Processing and the mix bus integration within the Console Mixer when multi-unit cascading, one device must be designated as the monitor (master) unit and the other as the expander (slave) unit.
  • In driver I/O list ordering, the monitor unit I/O precedes the expander unit I/O, and the expander unit I/O labels are preceded with "2" to differentiate from the monitor unit I/O.
  • Monitor Outputs: When multi-unit cascading, both units share the same monitor mix bus. The monitoring speaker system must be connected to the monitor outputs of the monitor unit. The monitor outputs of the expander unit are disabled.
  • Monitor Knobs: The monitor knob on the front panel of expander unit, and its surrounding green LED ring, are disabled. Use the front panel monitor knob on the monitor unit (or the monitor level controls in Console or the Console Recall plug-in) to adjust the monitor output level.
  • Aux, Headphone, Cue Outputs: When multi-unit cascading, the send mix buses of both units are summed and these buses are sent to the monitor unit only. The associated outputs on the expander unit are disabled.
  • Flex Routing: When multi-unit cascading, inputs in Console can only be directly routed (via Output menu) to hardware outputs of the same unit.
  • Multi-unit cascading is unavailable at sample rates of 176.4 kHz or 192 kHz.
  • (Apollo only) Auxiliary bus 2 is unavailable when multi-unit cascading with Apollo.

Multi-Unit Cascading: Clocking

  • Internal clocking:
    • When the Apollo units are properly wired, all system clocking and clock settings are automatically configured by the device drivers.
    • In the Interface panel of the Console Settings window, set the clock source to Internal unless specifically clocking to an external (non-Apollo) device.
    • When the clock source in the Console Settings window is set to Internal, “EXT” will illuminate on the designated expander unit hardware’s front panel.
  • External clocking:
    • When using an external clock with Apollo multi-unit cascading, both Apollo units are automatically configured by the device drivers to use the external clock when the Clock Source specified in the Interface panel of the Console Settings window is set to External.
    • When the clock source in the Console Settings window is set to External, “EXT” will illuminate on the front panel of both the monitor unit and the expander unit.

Multi-Unit Cascading: Wiring

  • In all multi-unit cascading setups, specific hardware wiring connections are required. The specific connections differ for Apollo and Apollo 16. See the wiring diagrams below.
  • Connect only the monitor unit to the host computer system. The expander unit is connected (daisy-chained) to the monitor unit only, not the host computer.
  • A FireWire 800 cable must be connected between the Expander and Monitor units.
  • ADAT (Apollo) or MADI (Apollo 16) is required for the mix bus integration when multi-unit cascading.
  • (Apollo) Both ADAT ports (S/MUX) must be connected when multi-unit cascading at sample rates of 88.2 kHz or 96 kHz.
  • (Apollo) Monitor, headphone, and auxiliary outputs must be connected to the Monitor unit only.
  • (Apollo 16) Monitor and cue outputs must be connected to the Monitor unit only.
  • Wiring diagrams for both FireWire multi-unit cascading setups are below.

Multi-Unit Cascading: Wiring Diagrams

Multi-Unit Cascading: Power Up Sequence

When multi-unit cascading, the order in which the Apollo monitor and expander units are powered on is important for proper initialization. Note: The steps are critical when multi-unit cascading at sample rates of 88.2 kHz and higher.

For optimum results, follow the recommended power up sequence:

  1. Shut down (power off) the host computer system
  2. Power off all connected FireWire devices (Apollo, hard drives, repeaters, etc)
  3. Confirm monitor/expander designations and all device wiring (see "Multi-Unit Cascading: Wiring" section above)
  4. Power on all FireWire devices except Apollo
  5. Power on the Apollo monitor unit
  6. Power on the Apollo expander unit
  7. Start the host computer

Multi-Unit Cascading: Driver I/O Complement

  • The specific inputs and outputs that are available to the DAW when multi-unit cascading depends on the model (Apollo or Apollo 16) and whether or not PT Mode is enabled.
  • Avid Pro Tools allows 32 channels of I/O with non-Avid branded audio interfaces. Because Apollo audio streams exceed this count when multi-unit cascading, some Apollo I/O channels are unavailable in PT Mode when multi-unit cascading.
  • Enabling PT Mode changes the driver I/O complement. Quit all audio applications before changing the PT Mode setting.
  • PT Mode changes Apollo’s driver I/O numbering and names. If a DAW project saved with PT Mode disabled (or saved prior to UAD v7) is subsequently opened when PT Mode is enabled, the DAW’s channel I/O assignments may need to be adjusted in the Pro Tools I/O Setup window.
  • The specific driver I/O complements for all available multi-unit cascading configurations are listed in the driver I/O tables below.
  • In the multi-unit I/O driver tables, the designated monitor unit I/O is in the left columns and the designated expander unit is in the right columns. In the tables and the driver I/O labels, the expander unit I/O is prefixed with the number 2 (e.g., “2 LINE 1”).

Multi-Unit Cascading: Driver I/O Tables

Note: All Apollo driver I/O tables are available in the Apollo Software Manual.

Maximum of two UAD FireWire devices

  • Concurrent use of up to two UAD FireWire devices (including UAD-2 Satellite) together in one computer system is supported.
  • Specific Apollo or Apollo 16 multi-unit cascading support is detailed above.

Combining Apollo or Apollo 16 with non-FireWire UAD Devices

  • Apollo or Apollo 16 can be combined with UAD-2 PCIe, UAD-2 Satellite, and/or UAD-2 SOLO/Laptop (within the other requirements listed below).
  • Up to four UAD-2 devices can be combined together in one computer system (within the other requirements listed below).

Combining Apollo or Apollo 16 with UAD-2 Satellite

  • If UAD-2 Satellite is on the same FireWire bus as Apollo or Apollo 16, the UAD-2 Satellite MUST be powered on AFTER Apollo or Apollo 16 is powered on.
  • Combining one UAD-2 Satellite with one Apollo or one Apollo 16 together in one computer system is a supported configuration.
  • UAD-2 Satellite cannot be combined with two Apollo or Apollo 16 units that are multi-unit cascaded.

General Usage Notes

Powering Apollo Systems

  • The order in which Apollo and other FireWire devices are powered on is important for proper initialization. For optimum results, follow the recommended power up sequences above.

Quit audio software before disconnecting Apollo

  • Important: To avoid software errors, quit all audio software applications that are using Apollo and/or UAD Powered Plug-Ins before disconnecting Apollo from the computer. This includes any DAW software, Apollo's Console application, and UAD Meter & Control Panel application.

Sample Rate Changes

  • Because each DAW differs in the way they execute sample rate changes, restarting the computer is generally recommended after the session sample rate is changed for maximum performance.
  • To ensure a sample rate change is properly executed: 1) Quit the DAW after the sample rate is changed, then 2) restart the computer.
  • The UAD Bandwidth Allocation may need to be adjusted after changing the sample rate.
  • (Win) The session sample rate can only be changed from within the DAW. The Console Settings window cannot be used to change the sample rate.

DSP Usage

  • Apollo uses DSP and memory for its internal DSP mixer. Therefore, the UAD meters will show some DSP and memory usage even when UAD Powered Plug-Ins are not in use.

UAD Presets

  • When logged into the computer under an account that does not have administrator privileges, saving UAD preset files via the UAD Toolbar will result in an "Unable to save preset file" dialog. If this occurs, either log in with an administrator account, or use the DAW's preset management tools.

External Word Clock

  • To set Apollo to sync to external Word Clock, the setting must be made in the Interface panel within the Console Settings window. If the setting is changed from within the DAW's control panel, the change may not actually be activated even if the DAW indicates the setting is changed.

Windows-Specific Notes

  • For optimum performance with most DAWs, disabling Windows AERO is recommended.
  • The session sample rate can only be changed from within the DAW. The Console Settings window cannot be used to change the sample rate.
  • The "Enable CPU Optimization" option in the UAD Meter & Control Panel application's Configuration panel may need to be disabled when using Pro Tools on Windows systems.
  • At sample rates of 88.2 kHz and 96 kHz, the smallest available buffer is 64 samples. At sample rates of 76.4 kHz and 192 kHz, the smallest available buffer is 128 samples.

What is the lowest hardware buffer setting I can use with Apollo for stable operation?

The audio interface hardware I/O portion of Apollo can run at any hardware buffer setting that is stable within the DAW itself. Results may vary as a result of how much the DAW session stresses the computer system. This can be influenced by:

  • How many processor-intensive native plug-ins (such as virtual instruments, convolution reverbs, etc.) are in the session
  • Track count and sample rate
  • Processor speed and overall power of the computer

When Apollo is connected via FireWire, UAD plug-ins used within the DAW run at a 512 minimum buffer size in order to operate reliably. Apollo’s dynamic buffering enables lower hardware I/O buffer settings (256, 128, 64 etc.) while maintaining a stable 512 buffer for UAD plug-in processing.

(Mac) When Apollo is connected via the Thunderbolt Option Card, the 512 buffer restriction for UAD plug-in processing over FireWire no longer applies, enabling lower latency for UAD plug-ins running inside the DAW. With Thunderbolt, the buffer size for UAD plug-ins used within the DAW is equal to the DAW’s hardware I/O buffer setting. Additionally, LiveTrack mode can be used with Thunderbolt which lowers latency even further with UAD plug-ins used within the DAW.

Of course, for the lowest possible latency when running UAD plug-ins on live inputs, we recommend using the included Console application to take advantage of Apollo’s unique Realtime UAD Processing feature, where DAW I/O buffering does not apply.

Console Notes

Console Application

  • UAD Powered Plug-Ins within Console use DSP differently than when used within a DAW. To maintain the lowest possible input latency, UAD plug-ins used on a single Console input are “chained” and must fit within a single DSP chip. Therefore, it is possible to get an “DSP load limit exceeded” message even though the UAD Meter may indicate there is plenty of DSP available.
  • Console Recall session files (configuration presets) saved within Console will not be saved if the "/" (forward slash), "\" (back slash), or "?" (question mark) characters are in the filename. Avoid these characters when saving Recall files.

DAW Application Notes

General DAW Notes

  • (UAD v6.5.2 and lower only) If a DAW session is saved then a Console Recall plug-in adjustment is made, the "Save" menu may be unavailable (gray) even though the plug-in has changed. If this occurs, make any adjustment outside of the plug-in (e.g., toggle any DAW setting) then save the session. This issue is resolved in UAD v7.
  • (Win) The "Enable CPU Optimization" option in the Configuration panel of UAD Meter & Control Panel application's Configuration panel may need to be disabled when using Pro Tools on Windows systems.

System Sleep

System Sleep Is Not Supported with UAD FireWire devices.

Important: Quit all UAD plug-in host software and power down and/or disconnect Apollo before system sleep.

While Apollo is active, system sleep is not supported. Follow these guidelines when using Apollo:

  • Disable sleep.
    (Mac) Open the System Preferences*>Energy Saver pane and drag the “Computer Sleep” slider to “Never” (far right position).
    (Win) Select Start Menu>Control Panel>System and Security>Power Options>Change when the computer sleeps, then next to “Put the computer to sleep:” select “Never”
  • Before sleeping the system when Apollo is active, quit all plug-in host applications (including UAD Meter & Control Panel and Console applications) then power off or disconnect Apollo.
    (Mac) After system wake is complete, Apollo may be powered up and/or reconnected.
    (Win) Since hot-plugging is not supported, shutdown the computer before reconnecting and/or powering Apollo.

*System Preferences.app is located in Applications/Utilities, or click the Apple icon in the menu bar (upper left of screen) and select “System Preferences” from the menu.

Apollo and Thunderbolt

Thunderbolt Option Card

  • Apollo's Thunderbolt Option Card is recommended for maximum performance when connecting Apollo to Thunderbolt-equipped Mac computers.
  • See the Thunderbolt support page for technical details about using Apollo with Thunderbolt.
  • For Thunderbolt 2 information, click here.
  • (Win) The Thunderbolt Option Card is not supported on Windows systems.

Apple Thunderbolt to FireWire Adapter

  • The Apple Thunderbolt to FireWire Adapter has been tested in-house and there are currently no known issues when using this adapter with Apollo.
  • When Apollo is connected to a Thunderbolt-equipped Mac via the Apple Thunderbolt to FireWire Adapter, Apollo behaves exactly as if it were connected directly to a FireWire 800 port. There are no operational or bandwidth differences in this configuration.

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