Audio Interfaces

The Apogee Electronics Symphony I/O MK II 2x6SE Card provides high-end audio connectivity, ideal for studios requiring flexible and precise management of analog and digital channels. With multiple input and output options, this card ensures high-end sound quality and compatibility with a wide range of professional equipment.

ARTICLE N° 98197
  • Apogee Electronics 2x6SE Card for Symphony I/O MK II
  • 8 Input/Output Expansion Module
  • Analog to Digital
  • THD+N: -116dB @ 23dBu (0.00016%) unweighted
  • Dynamic Range: 124dB A-weighted
  • Max. Input Levels: : at +4dB : +24dBu, at -10dB : - +6dBV
  • Frequency response at 44.1kHz : 1 to 20,000 Hz (+/- 0.05dB)
  • Digital to analog
  • THD+N: -118dB @ 22dBu (0.00013%) unweighted
  • Dynamic range: 131dB unweighted
  • Max output levels: - infinite to +24dBu
  • Frequency response at 44.1 kHz : DC to 20kHz (+/- 0.05dB)
  • Inputs
  • 2 analog inputs: balanced inputs via 2 female XLR connectors
  • 1 AES input: stereo input via 1 female XLR connector
  • Optical inputs: ADAT, SMUX and S/PDIF supported
  • ADAT: 8 channels 44.1-48 kHz via 1 Toslink connector
  • SMUX: 4 channels 88.2-96 kHz via 1 Toslink connector
  • S/PDIF: 2 channels up to 96 kHz via 1 Toslink connector
  • S/PDIF Inputs Coaxial: 2 channels up to 192 kHz via 1 RCA connector
  • Outputs
  • 6 analog outputs: balanced outputs via 1 SUBD-25 connector
  • 1 AES output: stereo output via 1 male XLR connector
  • Optical Outputs: ADAT, SMUX and S/PDIF supported
  • ADAT: 8 channels 44.1-48 kHz via 1 Toslink connector
  • SMUX: 4 channels 88.2-96 kHz via 1 Toslink connector
  • S/PDIF: 2 channels up to 96 kHz via 1 Toslink connector
  • S/PDIF Outputs Coaxial: 2 channels up to 192 kHz via 1 RCA connector
  • Full adjustment of analog inputs/outputs from the touch screen or Symphony Control software.
The Apogee Electronics Symphony I/O MK II 2x6SE Card offers versatile and high-performance connectivity to meet the needs of professional studios.
It can handle up to 12 channels of audio input and 16 channels of output, with a variety of digital and analog audio formats. With its analog inputs on XLR, digital inputs via AES and SPDIF, and compatibility with the ADAT optical format, this card offers maximum flexibility.
Users can configure their setup to suit their needs, with options for 2 analog input channels or up to 8 digital channels via optical, all easily controlled via Symphony Control software.

On the output side, the Symphony I/O MK II 2x6SE Card allows up to 6 analog channels via a DB25 connector and 8 digital channels via optical connection. Thanks to the configurable optical format (ADAT or SMUX), this card ensures compatibility with a wide range of equipment and allows sampling rates of up to 192 kHz in SPDIF.
The SPDIF coaxial RCA ports add even more flexibility by allowing a pair of analog or digital outputs to be duplicated.
With precise audio routing management, this expansion card is an ideal choice for the most demanding professional audio configurations.
Max sampling frequency
 192
Digital input
 ADAT S/MUX, AES/EBU, S/PDIF Optical
Line output
 Yes
Digital output
 ADAT S/MUX, AES/EBU, S/PDIF Optical

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