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

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The Apollo APQ-DI from Universal Audio is a professional, high-resolution Quad DSP computer audio interface that delivers the sound, feel, and flow of analog recording. This 18x24 FireWire/Thunderbolt... Click To Read More About This Product

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The Apollo APQ-DI from Universal Audio is a professional, high-resolution Quad 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 UA' 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, Apollo' 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, Apollo' 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 Intel' 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.


  • QUAD 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
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
  • S/PDIF
  • Jack Type: Phono (RCA)
  • Format: IEC958
  • ADAT
  • 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 “ 60 Hz
  • 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.
Pro Coverage
One year parts and labor warranty on all U.A. products and Kind of Loud products.

  • Customer Reviews

Review Snapshot

by PowerReviews

(based on 2 reviews)

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Reviewed by 2 customers

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(8 of 8 customers found this review helpful)


The most pleasant and powerful device I've ever used!!! Your job just got a whole lot easier!!!

By Jean Loza

from North Hollywood, California

The Apollo quite literally has the sound and feel of a analog recording desk. It's a very difficult thing to describe but its just organic sounding. It's just real! We hooked it up at the studio and placed a SE ribbon mic on a acoustic guitar, no plug-ins, on board pre-amps and our mouths just dropped! The depth, clarity and dimension you expect from high quality converters along with what I feel is a warm analog sound. Universal Audio definitely went in the right direction by making it transparent with the ability to color the sound with their analog emulations. Placing the Struder Tape created a heck of a difference and did something very pleasant to the entire stereo image. Very wide sweet sounding. Pres are clean and usable. I imagine they will come out with mic pre emulations in the future. I've used other interfaces from the Apogee and RME line and this stomps them both. Don't get me wrong they make great interfaces but Apogee has a "sparkly" sound of its own, while RME is quite sterile and harsh at times. Both make quality converters and are completely capable of making great sounding recordings. Only thing is that the Apollo sounds more musical and true to me. Do yourself a favor and if you have the cash to invest on one, especially at this price range. Go for it!!! You will not be disappointed. The drivers are rock solid and the Console App is so'll just love tracking through the plug-ins. A whole lot of fun!

(6 of 6 customers found this review helpful)


WoW!!! Mind is Blown!!!


from Omaha, Nebraska

This baby is pretty sweet!! I just received it a few days ago and have been playing with it for a couple days. Mixing through it, the A/D, D/A is super clean. Tracking with the UAD plug-ins in real time without latency blows my mind. The plug-ins are clean, punchy, and sound realistic. You can even use the unit by itself without a computer. If you have the scratch to buy this, definitely worth the money!!!

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