User manual
Apogee Electronics Symphony I O Mk

User Manual for Apogee Electronics Symphony I O Mk II - Audio Interface

• Product category: Audio Interfaces & Systems Apogee Electronics
• Brand: Apogee Electronics
• Description and content of package
• Technical information and basic settings
• Frequently asked questions – FAQ
• Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
• Authorized service for Apogee Electronics Audio Interfaces & Systems

Product description

• Symphony I/O Mk II Chassis (Thunderbolt) The Symphony I/O Mk II from Apogee Electronics is an advanced, flexible multi-channel audio interface featuring the newest flagship AD/DA conversion, modular I/O (up to 32 inputs and outputs), and an intuitive touchscreen display. The chassis provides two I/O Module slots for a variety of digital audio conversion options that form the interface side of the Symphony I/O Mk II. The front-panel touch screen offers convenient access to nearly every setting including sample rate, clock source, headphone & speaker output levels, meters for all I/O and section navigation, as well as input levels, digital I/O, and configuration settings.
  
  The rear panel provides access to the two I/O Module slots that are capable of a combined thirty-two channels of input and output, while the two Thunderbolt connectors ensure compatibility with newer Mac computers. Also included are Wordclock I/O connectors & termination, an option card slot, and a quiet digitally-controlled fan to keep everything running cool.
  
  The Symphony I/O Mk II features a single ultra-high-fidelity DAC and headphone amplifier with Apogee's Constant Current Drive technology, which was first introduced in the Apogee Groove. The headphone amplifier dynamically compensates for non-linearities of any connected headphones, providing massive power while maintaining extremely low distortion and linear frequency response.The optional five I/O Modules allow the user to choose from standard configurations, or customize the following – channel count, analog to digital input, digital to analog output, microphone preamps (requires an analog card), and digital I/O. Note: Note! This is the Symphony I/O chassis only.
  • • Legendary AD/DA conversion
    • Up to 32 channels of modular analog I/O with optional 8 mic preamps
    • Ultra-low latency performance
    • Intuitive touchscreen display and front panel control
    • Option card slot for future platform flexibility
    • Dynamic Temperature Control
    • Designed in California, built in the U.S.A.
      
  UPC: 805676301525
• 8x8 Mk II Module - 16-Channel Analog and AES/Optical I/O Module for Symphony I/O Mk II The 8x8 Mk II Module from Apogee is a 16-channel module for the Symphony I/O that allows for any combination of 8 x 8 analog input and output, and 8 x 8 AES/EBU or optical digital input and output. The module occupies one of the two slots available on the chassis. The A/D circuit has been refined to offer a streamlined circuit design, resulting in the most transparent signal path to the A/D stage possible. A dual-sum A/D stage is utilized where two conversion stages are summed for each analog channel, offering the lowest distortion and the greatest dynamic range of any A/D converter Apogee has ever designed.
  
  The D/A section has been optimized with a more powerful and robust output driver that is capable of driving virtually any input without a decrease in performance, regardless of the load presented by the connected gear. The analog and AES inputs and outputs are offered on DB25 connectors and require optional breakout cables, available in various configurations to suit individual requirements. Note: Requires Symphony I/O Mk II Chassis with available card slot.
  • 8 x 8 channels of analog input/output with 8 x 8 channels of AES/EBU or optical digital input/output, available simultaneously up to a total of 16 channels
  • Optical digital supports ADAT, SMUX, and S/PDIF
  • S/PDIF input and output up to 192 kHz on RCA coaxial that replaces two input channels and mirrors two output channels
  • Ultra-low latency AD and DA conversion
  • Rear-panel digital I/O hardware switch selects AES or optical digital I/O format
  UPC: 805676301532
• A8MP - Microphone Preamp Module for Symphony I/O The A8MP from Apogee is a module for the company's Symphony system that enhances the system's analog input by adding 8 microphone preamps. Additionally, up to 4 instrument inputs can be connected directly to the module and twin D-Sub connectors deliver 8 fully balanced inserts points.
  
  Microphones do not connect directly to the Mic Preamp Module. They must be connected to the analog inputs of an analog I/O Module that has been installed in slot 1 of the Symphony chassis. The microphone preamps are then enabled in the Maestro software. Phantom power can also be enabled individually from the software.
  • Eight digitally controlled, 85dB microphone preamps
  • Upgrades functionality of Analog I/O Module by adding microphone preamps to the existing line inputs
  • Creates a direct connection between the Mic Preamp Module and the Analog I/O Module by inserting a microphone preamp stage before the line inputs
  • Phantom power individually switchable (via Maestro)
  • Four Hi-Z 1/4" instrument inputs capable of handling high level instruments
  • Eight fully balanced insert points on 25-pin D-Sub connectors
  UPC: 805676300788

• AC Power Cable

• Rack Ears and Bolts

• Limited 1-Year Warranty

• Limited 1-Year Warranty

• One (1) Year Warranty

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Technical parameters

• Symphony I/O Mk II Chassis (Thunderbolt)

  ADC	THD+N: -114 dB @ 22 dBu (0.00020%) Dynamic Range: 122 dB (A weighted) Maximum Input Levels: +4 dB Setting: +24 dBu -10dB Setting: +6 dBV Frequency Response at 44.1 kHz: 1 Hz to 20 kHz (±0.05 dB) Input impedance: 10 kOhms

  DAC	THD+N: -117 dB @ 21 dBu (0.00014%) Dynamic Range: 129 dB (A weighted) Max Output Levels: -∞ to +24 dBu Frequency Response at 44.1 kHz: DC to 20 kHz (±0.05 dB) Output Impedance: 25 Ohms Outputs are balanced through Apogee's proprietary Perfect Symmetry Circuitry (PSC)

  Headphone	Stereo Headphone Output (Front Panel): 1/4" / 6.35 mm THD+N: -110 dB @ 19 dBu into 600 Ohm (=80 mW) -101 dB @ 14 dBu into 32 Ohm (=470 mW) Dynamic Range: 121 dB (A weighted) Output: Apogee's proprietary Constant Current Drive provides smooth frequency response with any headphones

  System Requirements	Computer: Thunderbolt-equipped Mac Memory: 4 GB RAM minimum, 8 GB RAM recommended OS X 10.9.5 or greater Thunderbolt cable (sold separately)

  Power	90 to 240 VAC, 50/60 Hz, 150 W
  Dimensions (W x D x H)	Without Rack Ears: 17.8 x 11.5 x 3.5" / 450.9 x 292.1 x 88.9 mm With Rack Ears: 19.0 x 11.5 x 3.5" / 482.6 x 292.1 x 88.9 mm
  Weight	Not specified by manufacturer

  Box Dimensions (LxWxH)	22.8 x 17.9 x 9.9"

• 8x8 Mk II Module - 16-Channel Analog and AES/Optical I/O Module for Symphony I/O Mk II

  ADC	24-bit
  DAC	24-bit
  Sample Rates	44.1 to 192 kHz
  Analog In	1 x 25-pin D-Sub; 8 channels Requires optional breakout cable
  Analog Outputs	1 x 25-pin D-Sub; 8 channels Requires optional breakout cable
  AES In/Out	1 x 25-pin D-Sub for AES/EBU input and output 8 channels of input and output Requires optional breakout cable
  Digital Input Connectors	1 x RCA; coaxial S/PDIF; 2 channels 2 x TOSLINK; optical ADAT, S/PDIF, or SMUX ADAT: 8 channels, 44.1 - 48 kHz S/PDIF: 2 channels, up to 96 kHz SMUX: 8 channels, 88.2 - 96 kHz
  Digital Output Connectors	1 x RCA; coaxial S/PDIF; 2 channels 2 x TOSLINK; optical ADAT, S/PDIF, or SMUX ADAT: 8 channels, 44.1 - 48 kHz S/PDIF: 2 channels, up to 96 kHz SMUX: 8 channels, 88.2 - 96 kHz
  Word Clock	On chassis
  Power Requirements	From chassis
  Dimensions (WxDxH)	Fits slot on chassis

  Box Dimensions (LxWxH)	14.2 x 12.4 x 3.6"

• A8MP - Microphone Preamp Module for Symphony I/O

  ADC	24-bit
  DAC	24-bit
  Sample Rates	Up to 192kHz
  Analog In	4 x 1/4" TS phone 1 x 25-pin D-Sub Insert Returns (requires optional breakout cable)
  Input Impedance	10kΩ
  Maximum Input Level	+4dB setting: +24dBu -10dB setting: +6dBV
  Analog Outputs	1 x 25-pin D-Sub Insert Sends (requires optional breakout cable)
  Output Impedance	25Ω
  Maximum Output Level	∞ to +24dBu
  Digital Input Connectors	No
  Digital Output Connectors	No
  Dynamic Range	A/D: 120dB, A-weighted D/A: 129dB, A-weighted
  THD + N	A/D: -113dB @ 20dBu (0.00024%) D/A: -117dB @ 20dBu (0.00014%)
  Frequency Response	A/D: 1Hz to 20kHz (+/-0.05dB)@ 44.1kHz D/A: DC to 20kHz (+/-0.05dB)@ 44.1kHz
  Word Clock	On chassis
  Power Requirements	From chassis
  Dimensions (WxDxH)	Fits slot on chassis

  Box Dimensions (LxWxH)	14.2 x 13.7 x 3.6"

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