Universal Audio Apollo Interface 18x24 FireWire Audio Interface w/ UAD-2 DUO DSP & Thunderbolt I/O Option Bay  

Product #H80029

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This product has been discontinued but may be available as a Open Box item.

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Universal Audio

High-resolution UAD-2 Duo DSP audio interface with a classic analog sound.

The Apollo APD-DI from Universal Audio is a professional, high-resolution Duo DSP computer audio interface that delivers the sound, feel, and flow of analog recording. This 18x24 FireWire/Thunderbolt-ready interface combines genuine UA analog design with class-leading 24-bit/192kHz sound quality and onboard Realtime UAD Processing. Using the Apollo interface, you can have the ability to track audio through a range of available classic UAD analog emulation plug-in, from top-end recording companies such as Neve, Studer, Manley, Lexicon and more (sold separately). All of this processing is done in real time, and with a sleek elegant workflow on both Mac and PC environments.

24-bit/192 kHz Sound Quality for Pro Tools, Logic, Cubase & More
Apollo builds upon decades of UAs analog design heritage as an extremely well-built, high-resolution audio interface, featuring premium mic preamps and top-end converters for low THD and high dynamic range. Its Core Audio and ASIO drivers ensure compatibility with all major DAWs, including Pro Tools, Logic Pro, Cubase, Live, and more. Moreover, Apollos included Console application and companion Console Recall plug-in (VST/AU/RTAS) provides control and recall of all interface and UAD plug-in settings within individual DAW sessions, even months and years later.

Realtime UAD Plug-In Processing for Tracking, Mixing and Mastering
Apollo differentiates itself from other interfaces with its Realtime UAD Processing. Available with either DUO Core or QUAD Core processing onboard, this DSP Acceleration allows for recording and mixing through UAD Powered Plug-Ins ” with as low as sub-2ms latency ” so that you can quickly monitor, audition, and œprint audio using additional classic analog emulations that are available from Ampex, Lexicon, Manley, Neve, Roland, SSL, Studer, and more. In this way, Apollos sonic character and tonal options are nearly endless. The onboard UAD processing also frees up host computer CPU for other virtual instrument or mixing duties.

Thunderbolt I/O: The Next Generation of Connectivity
Apollo offers compatibility with Intels new Thunderbolt technology, as found on the newest iMacs, MacBook Pros, and MacBook Airs. Available via a user-installable Thunderbolt I/O Option Card (sold separately), Thunderbolt provides lower latency, reduced audio buffer size, improved performance, and greater UAD plug-in instances versus FireWire.

Attention Windows Users:
UAD Version 6.4 now with Windows 7 Support for 64-bit plug-ins, UAD-2 Satellite and Apollo Interfaces -- requires Windows 7 64-Bit and qualified PCIe-to-FireWire adapter.

  • DUO Core processor
  • 18 x 24 FireWire/Thunderbolt -ready audio interface for Mac and PC
  • Realtime UAD Processing for low-latency (sub-2ms) tracking and mixing w/ UAD Powered Plug-Ins (Neve, Studer, Lexicon, Roland, SSL & more “ each sold separately)
  • Class-leading sonic performance via premium mic preamps, top-end converters, and uncompromising analog design
  • Front-panel controls for Preamp and Monitor levels, channel selection, mic settings, dual headphone outs, and other commonly used features
  • Instant recall of interface and UAD plug-in settings within DAW sessions via Console application and Console Recall plug-in (VST/RTAS/AU)
  • 8 analog inputs: 4 digitally controlled analog mic preamps; 8 balanced line inputs; 2 front-panel JFET DIs
  • 14 analog outputs: 8 balanced line outs; 2 digitally-controlled analog monitor outs; 2 dedicated stereo headphone outs
  • 10 channels of digital I/O: 8 channels of ADAT; 2 channels S/PDIF; Wordclock I/O
  • Dual FireWire 800 ports (standard) for host connectivity and daisy chaining
  • Thunderbolt I/O Option Card for fast, high-performance connectivity to new Macs and PCs (card sold separately)
  • Includes œAnalog Classics plug-in bundle w/ LA-2A Classic Audio Leveler, 1176LN Limiting Amplifier, and Pultec EQP-1A Program Equalizer

The sound, the feel, the flow of classic analog recoding; now in your home studio. Order the Apollo today.


Apollo Interface 18x24 FireWire Audio Interface w/ UAD-2 DUO DSP & Thunderbolt I/O Option Bay Specifications:

  • Minimum System Requirements
    Intel-based Mac computer
    Mac OS X 10.6.8 Snow Leopard or 10.7.2 Lion (or higher)
    UAD Powered Plug-Ins v6.1.1 (or higher)
    Available FireWire 800 port
    1024 x 900 minimum display resolution
    1GB available hard drive space
    CD-ROM drive or Internet connection for software installation
    Internet connection for registration, UAD plug-in authorization, & updates
    I/O Complement
    Microphone Inputs = 4
    High-Impedance Inputs = 2
    Analog Line Inputs = 8
    Analog Line Outputs = 8
    Analog Monitor Outputs = 2 (1 stereo pair)
    Headphone Outputs = 2 stereo (independent mix buses)
    ADAT = Up to 8 channels via dual I/O ports with S/MUX
    S/PDIF = 1 stereo input, 1 stereo output
    FireWire 800 (IEEE 1394b) = Dual ports
    Thunderbolt (via Option Card) = Dual ports
    Word Clock = 1 input, 1 output
    A/D “ D/A Conversion
    Supported Sample Rates (kHz) = 44.1, 48, 88.2, 96, 176.4, 192
    A/D Bits Per Sample = 24
    Simultaneous A/D conversion = 8 channels
    Simultaneous D/A conversion = 4 channels
    Analog Round-Trip Latency = 1.1 milliseconds @ 96kHz sample rate
    Analog Round-Trip Latency with four serial UAD-2 plug-ins via Console application = 1.1 milliseconds @ 96kHz sample rate
    Microphone Inputs 1 “ 4
    Jack Type: XLR Female
    Phantom Power: +48V, Switchable
    Dynamic Range: 118 dB (A“weighting)
    Signal-to-Noise Ratio: 118 dB (A“weighting)
    Total Harmonic Distortion + Noise: “110 dB
    Hi“Z Inputs
    Jack Type: 1/4 Male (Mono TS plug required)
    Dynamic Range: 117 dB (A“weighting)
    Signal-to-Noise Ratio: 117 dB (A“weighting)
    Total Harmonic Distortion + Noise: “103 dB
    Line Inputs 1 “ 4
    Jack Type: 1/4 Male TRS Balanced
    Dynamic Range: 117 dB (A“weighting)
    Signal-to-Noise Ratio: 117 dB (A“weighting)
    Total Harmonic Distortion + Noise: “107 dB
    Line Inputs 5 “ 8
    Jack Type: 1/4 Male TRS Balanced
    Dynamic Range: 117 dB (A“weighting)
    Signal-to-Noise Ratio: 117 dB (A“weighting)
    Total Harmonic Distortion + Noise: “107 d
    Line Outputs 1 “ 8
    Jack Type: 1/4 Male TRS Balanced
    Dynamic Range: 118 dB (A“weighting)
    Frequency Response: 20Hz “ 20kHz, ±0.1 dB
    Signal-to-Noise Ratio: 118 dB (A“weighting)
    Total Harmonic Distortion + Noise: “106 dB
    Monitor Outputs 1 “ 2
    Jack Type: 1/4 Male TRS Balanced
    Frequency Response: 20Hz “ 20kHz, ±0.1 dB
    Dynamic Range: 115 dB (A“weighting)
    Signal-to-Noise Ratio: 114 dB (A“weighting)
    Total Harmonic Distortion + Noise: “103 dB
    Stereo Headphone Outputs 1 & 2
    Jack Type 1/4 Male TRS Stereo/Unbalanced
    Frequency Response: 20Hz “ 20kHz, ±0.1 dB
    Dynamic Range: 113 dB (A“weighting)
    Signal-to-Noise Ratio: 113 dB (A“weighting)
    Total Harmonic Distortion + Noise: “101 dB
    Jack Type: Phono (RCA)
    Format: IEC958
    Jack Type: Optical TOSLINK JIS F05
    Format: ADAT Digital œLightpipe with S/MUX
    Channel Assignments @ 44.1kHz, 48kHz Port 1 = Channels 1 “ 8, Port 2 = 1 “ 8 (mirrored)
    Channel Assignments @ 88.2kHz, 96kHz Port 1 = Channels 1 “ 4, Port 2 = Channels 5 “ 8
    Channel Assignments @ 176.4kHz, 192kHz Port 1 = Channels 1 “ 2, Port 2 = Channels 3 “ 4
    Word Clock
    Jack Type: BNC
    Lock Range: ±0.5% of any supported sample rate
    Word Clock Input Termination: 75 Ohms, switchable
    Synchronization Sources
    Internal, Word Clock, S/PDIF, ADAT
    Power Supplies: External AC to DC Power Supply Brick, Internal DC to DC Power Supply
    AC Connector Type: IEC Male
    AC Requirements: 100V “ 240V AC, 50 “ 60Hz
    DC Connector Type: XLR 4-Pin Locking Male (Neutrik P/N NC4MDM3-H)
    DC Requirements: 12 VDC, ±5%
    Maximum Power Consumption: 6.5 amperes
    Dimensions (WxHxD): 19 x 1-3/4 x 12-1/8
    Weight: 9.1 lb.
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