SMUGDESK 2-Way SPDIF Toslink Optical Audio Splitter 1 Input 2 Output

What the splitter does

This compact optical audio splitter takes a single SPDIF Toslink input and duplicates the digital signal to two output ports simultaneously. It is designed for users who need to send the same audio feed to two devices such as a soundbar and a headphone amplifier, or a TV and an external DAC, without converting to analogue.

Signal behaviour under continuous use

Because the device uses passive light-based transmission, it does not amplify or regenerate the optical signal; it simply divides the incoming light between the two outputs. The split signal remains lossless for the duration of the session, provided the source maintains a stable optical level and the connected cables are within standard Toslink length limits.

Thermals noise and power

The splitter requires no external power supply and contains no active electronics, so it generates no heat and adds no electrical noise to the audio chain. Optical isolation inherently prevents ground-loop hum and electromagnetic interference, keeping the background noise floor at the level of the source equipment alone.