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C2O Accessories | Coax to Optical Converter | up tp 24 bit / 192 kHz

The C2O interface converts the signals coming from the coaxial digital input and from the analog AUX-IN into a TOSLINK optical digital output signal (up to 24 bit/192kHz). The conversion allows the integration of the new Hi-Res portable devices equipped with coaxial digital output (75 ohm) and smartphones with analog output on 3.5 mm mini Jack (also 4 poles) with Audison processors featuring an optical digital input compatible with the resolution of the signal sent to the C20. Thanks to its extreme compactness, the C20 can be installed in a hidden position on the dashboard, drastically reducing the length of the cabling between the portable player and the receiving device.


  • The coaxial digital input is provided with an isolation transformer
    that improves the balance between the transmitter and the
    receiver circuit, reducing noise due to EMI electromagnetic
    interference, which is particularly insidious inside the passenger
  • The AUX-IN input is equipped with a pre-amplifier with an adjustable
    gain of 0.1V ÷ 2V for an optimal coupling with each device before
    the Analog-Digital conversion is performed by a high-quality
    converter at a resolution of 24 bit/48 kHz.
  • For maximum ease of use in cars, the C2O independently selects
    the input with priority assigned to the AUX-IN. With the default
    setting, after 6 seconds of no analog signal, the C2O moves to the
    coaxial digital input.
  • An internal switch allows for the time before
    the switch to be set to 9 or 12 seconds. 

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