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

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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-... Read More

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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 UA’s 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’s 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 “print” audio using additional classic analog emulations that are available from Ampex, Lexicon, Manley, Neve, Roland, SSL, Studer, and more. In this way, Apollo’s 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’s 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 “Analog 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 “Lightpipe” 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.
  • Customer Reviews


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(based on 1 review)

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(1 of 1 customers found this review helpful)


Awesome DAW

By Jeff Owen

from Nashville, TN

I'm a professional in Nashville (aren't we all?). I've been touring for about 10 years, have recorded a handful of national releases, and I've been writing and demoing at home for almost 10 years as well. If you don't own or can't afford a $20k+ HD rig with a board and heaps of outboard gear I think this interface is the best step toward semi-professional recording. The setup was faster than any other plug-in i've downloaded online. I've used quite a few big name plug-ins but never bothered with UAD-2 stuff because of the price. Now that I own this Apollo and got the plug-ins, installed, and registered everything it was incredibly easy. I have an iMac running on 10.6.8 with Pro Tools 9. I couldn't believe it was so easy to set up and install. I even had a Satellite QUAD core drive daisy chained and there was no problem. The console program that runs along side the Apollo is so easy to use, and you can meter your CPU usage of the combined UAD-2 devices at all times. If you're tracking at high sample rates I would recommend the QUAD Apollo. Right now I have about 24 plug-ins on the console program and i'm maxed out running at 44.1. You have the option to only monitor the plug-ins or track to your disk with the affected signal. You can also create two stereo mixes for the headphone outs. Brilliant! The plug-ins sound amazing, and throughout the setup process and even the CPU monitoring windows you have easy access to get a hold of UA service reps if you run into a problem. Encouraging, but I also hope I don't have to call them. I easily daisy chained my 4-710d 4 channel UA unit via lightpipe and synced the word clocks. I'm excited to throw up a drum set and use 18 channels at once! (8 analog inputs +10 digital [8 via lightpipe, 2 via SPDIF]) I use a Mackie Bigknob for monitoring so the single stereo monitoring output doesn't bother me. So the bad news is you gotta buy those plug-ins that are usually a couple hundred dollars. Now, compared to my native plug-ins from other companies the EQ and compressors sound way better. It's great already that i don't have to devote so much CPU of my computer to mix and track. So the rest of the bad news is if you own one DUO device, you can only have so many tracks with plug-ins on them especially if you're higher than 44.1k sample rate and you can't use UAD-2 independently of your UAD-2 device (no diverting to your host computer drive). If you want to branch out of 44.1 you'll need more horsepower. Consider how much you're tracking and how much you'll need. With my QUAD satellite and my DUO Apollo, I feel like im good to go for a decently sized session. Anyway, initially everything sounds great through speakers and headphones. I'm really excited about this interface and highly recommend it.

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