【Audison C2O Digital Audio Interface｜Converts Coaxial & AUX Inputs to Optical Output】

Audison C2O is an interface you can use when you want to connect audio sources from a digital player or a smartphone to the optical digital input of an Audison product.

It supports a coaxial digital input and an analog AUX input via a 3.5mm mini-jack. You can convert and output analog audio, such as from a high-resolution player with a coaxial output or from a smartphone, into optical digital signals.

For example, if you want to use your handheld smartphone as the audio source while configuring the car system primarily around an optical input. Or, if you want to connect a digital player with a coaxial output to an Audison product, it gives you more options for how to connect.

When using an analog input, the output supports 24bit / 48kHz, and when using a digital input, it supports 24bit / 192kHz. The appeal of the C2O is that you can think through a sensible connection method depending on the equipment you connect and the configuration of your in-car system.

However, with interfaces like this, you need to select and confirm not only whether it can be connected, but also the vehicle-side system configuration, how power is supplied, the signal flow, and the combination with the player you will use. If it were me, I would sort out whether the C2O is truly necessary by looking at the entire current audio system, rather than deciding based on the C2O alone.

At LOGON, we guide you to connection methods that match how you plan to use it, while checking combinations with OEM audio and existing DSPs/processors. If you have questions such as wanting to use a smartphone as a source, wanting to switch to a digital connection, or wanting to take advantage of the input on Audison products, let’s decide on the direction together while checking your vehicle and your current system.

Main Specifications / Specs

【Basic Information】
Product name: C2O
Type: Digital audio interface
Purpose: Converts coaxial digital input or analog AUX input to TOSLINK optical digital output

【Inputs】
Analog input: 3.5mm jack (3-pole / 4-pole)
Digital input: Coaxial (S/PDIF)
Digital input support: 24bit / 192kHz

【Outputs】
Optical digital output
Conversion from analog input: 24bit / 48kHz
Conversion from digital input: 24bit / 192kHz

【Analog Input Performance】
Total harmonic distortion: 0.002
Reproduction frequency range: 5–24kHz
S/N ratio: 105dBA (A-weighted)
Input sensitivity: 0.1–2VRMS

【Input Control】
Digital input time setting: 6 seconds / 9 seconds / 12 seconds
Initial setting: 6 seconds

【Power】
Power voltage: 6–30VDC
Minimum idling current: 70mA (at 12V)
Remote IN voltage: 3VDC (0.5mA)

【Main Unit Dimensions】
Width: 60mm
Depth: 54.5mm
Height: 26mm