Specifications:

• Desktop 2x6 Thunderbolt audio interface with world-class 24-bit/192 kHz audio conversion
• Realtime UAD Processing for tracking through vintage Compressors, EQs, Tape Machines,
  Mic Preamps, and Guitar Amp plug-ins with near-zero (sub-2ms) latency
• Thunderbolt connection for blazing-fast PCIe speed and rock-solid performance on
  modern Macs
• Unison™ technology offers stunning models of classic tube and transformer-based
  mic preamps
• Two premium mic/line preamps; Two line outputs; front-panel Hi-Z instrument input
  and headphones output
• Two digitally controlled analog monitor outputs for full resolution at all listening levels
• Up to eight channels of additional digital input via Optical connection
• Uncompromising analog design, superior components, and premium build quality
• Runs UAD Powered Plug-Ins via Audio Units, VST, RTAS & AAX64 in all major DAWs

• Sample rates up to 192 kHz* at 24-bit word length
• Up to 10 x 6 simultaneous input/output channels
  
  • Two channels of analog-to-digital conversion via:
    
    • Two balanced mic/line inputs
    • One Hi-Z instrument input
  • Six channels of digital-to-analog conversion via:
    
    • Digitally-controlled stereo monitor outputs
    • Stereo headphone outputs
    • Line outputs 3-4
  • Up to eight channels of digital inputs via:
    
    • Eight channels ADAT optical with S/MUX for high sample rates, or
    • Two channels S/PDIF optical with sample rate conversion
• 64-bit device drivers
• PCIe audio drivers

• Two high-resolution, ultra-transparent, digitally-controlled analog mic preamps
• Front panel and software control of all preamp parameters
• Low cut filter, 48V phantom power, 20 dB pad, polarity inversion, and stereo linking

• Digitally-controlled analog monitor outputs maintains highest fidelity
• Independently-addressable stereo headphone outputs
• Independently-addressable line outputs 3-4 can be used for additional cue mix
• Front panel control of monitor levels and muting

• One (SOLO) or two (DUO) SHARC DSP processors
• Realtime UAD Processing on all analog and digital inputs
• Same features and functionality as other UAD-2 devices when used with DAW
• Includes UAD Powered Plug-Ins “Realtime Analog Classics” bundle
• Complete UAD Powered Plug-Ins library is available online

• Enables tracking and/or monitoring with Realtime UAD Processing
• Remote control of Apollo Twin features and functionality
• Virtual I/O for routing DAW tracks through Console
• Two independent stereo Auxiliary busses

• Saves Apollo Twin configurations inside DAW sessions for easy recall
• Facilitates control of Apollo Twin monitoring features from within the DAW
• VST, RTAS, AAX 64, and Audio Units plug-in formats

• Configures global UAD settings and monitors system usage

• Attractive and durable desktop form factor
• Locking power supply prevents accidental disconnection
• Easily updateable firmware
• One year warranty includes parts and labor

Thunderbolt Systems

UAD Powered Plug-Ins version 8

• Apple Mac computer with available Thunderbolt or Thunderbolt 2 port
• Mac OS X 10.8.5 Mountain Lion, 10.9.x Mavericks, or 10.10.x Yosemite
• 4 gigabytes available disk space
• Internet connection to download software and authorize UAD plug-ins
• Compatible VST, Audio Units, RTAS, or AAX 64 plug-in host DAW software
• Thunderbolt cable (sold separately)

All audio specifications are typical performance unless otherwise noted, tested under the following conditions: 48 kHz internal sample rate, 24-bit sample depth, 20 kHz measurement bandwidth, with balanced inputs and outputs.

• I/O Complement
  • Microphone Inputs Two
  • Analog Line Inputs Two
  • Hi-Z Instrument Inputs One
  • Analog Line Outputs Two (independent mix buses)
  • Analog Monitor Outputs Two (one stereo pair, independent L/R mix buses)
  • Headphone Outputs One stereo pair (independent L/R mix buses)
  • Digital Input Port (TOSLINK optical) One (ADAT or S/PDIF, selectable)
  • Thunderbolt Port One (Thunderbolt 2 compatible)
• A/D – D/A Conversion
  • Supported Sample Rates (kHz) 44.1, 48, 88.2, 96, 176.4, 192
  • Bit Depth Per Sample 24
  • Simultaneous A/D conversion Two channels
  • Simultaneous D/A conversion Six channels
  • Analog Round-Trip Latency 1.1 milliseconds @ 96 kHz sample rate
  • Analog Round-Trip Latency with up to four serial UAD Powered Plug-Ins via Console application 1.1 milliseconds @ 96 kHz sample rate

• Line Inputs 1 & 2
  • Jack Type (combo mic/line balanced inputs) Female ¼” TRS Balanced
  • Dynamic Range (A–weighting) 117.5 dB
  • Signal-to-Noise Ratio (A–weighting) 117.5 dB
  • Total Harmonic Distortion + Noise –108 dBFS
  • Common-Mode Rejection Ratio (CMRR) Greater than 60 dB (10’ cable)
  • Frequency Response 20 Hz – 20 kHz, ±0.1 dB
  • Input Impedance 10K Ohms
  • Gain Range +10 dB to +65 dB
  • Maximum Input Level (@ Minimum Gain)18 dBV
  • Maximum Input Level (@ Maximum Gain) –37 dBV
  • Stereo Level Balance ±0.05 dB
• Microphone Inputs 1 & 2
  • Jack Type (combo mic/line balanced inputs) Female XLR Balanced (pin 2 positive)
  • Phantom Power (switchable per input) +48V
  • Dynamic Range (A–weighting) 118 dB
  • Signal-to-Noise Ratio (A–weighting) 118 dB
  • Total Harmonic Distortion + Noise –110 dBFS
  • Equivalent Input Noise –127 dB
  • Frequency Response 20 Hz – 20 kHz, ±0.1 dB
  • Common-Mode Rejection Ratio (CMRR) Greater than 70 dB (10’ cable)
  • Default Input Impedance 5.4K Ohms (variable via Unison preamp model)
  • Gain Range +10 dB to +65 dB
  • Pad Attenuation (switchable per input) 20 dB (variable via Unison preamp model)
  • Maximum Input Level (@ Minimum Gain, with Pad) 23.8 dBV
  • Maximum Input Level (@ Maximum Gain, with Pad) –31.2 dBV
• Hi-Z Input
  • Jack Type Female ¼” TS Unbalanced
  • Dynamic Range (A–weighting) 117 dB
  • Signal-to-Noise Ratio (A–weighting) 117 dB
  • Total Harmonic Distortion + Noise –101 dBFS
  • Frequency Response 20 Hz – 20 kHz, ±0.1 dB
  • Input Impedance 1M Ohms
  • Maximum Input Level (@ Minimum Gain) 10 dBV
  • Maximum Input Level (@ Maximum Gain) –45 dBV
• Line Outputs 3 & 4
  • Jack Type ¼” Female TRS Balanced
  • Dynamic Range (A–weighting) 118 dB
  • Signal-to-Noise Ratio (A–weighting) 118 dB
  • Total Harmonic Distortion + Noise –107 dBFS
  • Frequency Response 20 Hz – 20 kHz, ±0.1 dB
  • Stereo Level Balance ±0.05 dB
  • Channel Separation Greater than 120 dB
  • Output Impedance 600 Ohms
  • Maximum Output Level 18 dBV
• Monitor Outputs 1 & 2
  • Jack Type ¼” Female TRS Balanced
  • Frequency Response 20 Hz – 20 kHz, ±0.1 dB
  • Dynamic Range (A–weighting) 115 dB
  • Signal-to-Noise Ratio (A–weighting) 115 dB
  • Total Harmonic Distortion + Noise –105 dBFS
  • Channel Separation Greater than 118 dB
  • Stereo Level Balance ±0.05 dB
  • Output Impedance 600 Ohms
  • Output Gain Range –96 dB to 0 dB
  • Maximum Output Level 18 dBV
  • Operating Reference Level +14 dBu, +20 dBu (selectable)
• Stereo Headphones Output
  • Jack Type ¼” Female TRS Stereo (unbalanced)
  • Frequency Response 20 Hz – 20 kHz, ±0.1 dB
  • Dynamic Range (A–weighting) 113 dB
  • Signal-to-Noise Ratio (A–weighting) 113 dB
  • Channel Separation Greater than 110 dB
  • Total Harmonic Distortion + Noise –101 dBFS
  • Stereo Level Balance ±0.11 dB
  • Output Impedance 10 Ohms
  • Output Gain Range –INF to 0 dB
  • Maximum Output Power 80 milliwatts into 600 Ohms

• S/PDIF
  • Connector Type Optical TOSLINK JIS F05 (shared with ADAT)
  • Format IEC958
  • Supported Sample Rates (kHz) 44.1, 48, 88.2, 96
  • S/PDIF Input Channels Two (Stereo L/R)
• ADAT
  • Connector Type Optical TOSLINK JIS F05 (shared with S/PDIF)
  • Format ADAT Digital Lightpipe with S/MUX
  • Supported Sample Rates (kHz) 44.1, 48, 88.2, 96, 172.4, 192
  • ADAT Input Channels @ 44.1 kHz, 48 kHz 1 – 8
  • ADAT Input Channels @ 88.2 kHz, 96 kHz 1 – 4 (S/MUX)
  • ADAT Input Channels @ 176.4 kHz, 192 kHz 1 – 2 (S/MUX)
• Clock Synchronization Sources
  • Internal, S/PDIF, ADAT (digital clock sync source conditional per selected digital input type)

• Power Supply External AC to DC
• AC Connector Type Changable blades (UL, VDE, UK, SSA, CCC)
• AC Requirements 100V – 240V AC, 50 – 60 Hz
• DC Connector Type Male plug, 2.1 mm x 5.5 mm, center positive
• DC Requirements 12 VDC, ±5%
• Maximum Power Consumption 12 Watts

• Operating Temperature Range 32º to 95º Farenheit (0º to 35º Celcius)
• Storage Temperature Range –40º to 176º Farenheit (–40 to 80º Celcius)
• Operating Humidity Range 20% to 80%

• Dimensions
  • Width 6.31”
  • Height 2.60”
  • Depth, Chassis Only 5.86”
  • Depth, Including Knob & Jack Protrusions 6.20”
  • Shipping Box (Length x Width x Height) 8” x 8” x 5.5” (20.32cm x 20.32cm x 13.97cm)
• Weight
  • Shipping Weight (with box & accessories) 3.85 pounds
  • Weight (bare unit) 2.35 pounds
• Package Contents
  • Apollo Twin Unit (SOLO or DUO)
  • External Power Supply with (4) changeable AC connectors supporting USA, Europe, UK, Australia, China
  • URL Card