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. FEATURES The coaxial digital input is provided with an isolation transformerthat improves the balance between the transmitter and thereceiver circuit, reducing noise due to EMI electromagneticinterference, which is particularly insidious inside the passengercompartment. The AUX-IN input is equipped with a pre-amplifier with an adjustablegain of 0.1V ÷ 2V for an optimal coupling with each device beforethe Analog-Digital conversion is performed by a high-qualityconverter at a resolution of 24 bit/48 kHz. For maximum ease of use in cars, the C2O independently selectsthe input with priority assigned to the AUX-IN. With the defaultsetting, after 6 seconds of no analog signal, the C2O moves to thecoaxial digital input. An internal switch allows for the time beforethe switch to be set to 9 or 12 seconds. DOCS Owner's Manual
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