A digial input audio converter that converts optical or digital audio signals to analog stereo signals
A versatile analog audio converter to digital audio signals
A versatile converter and splitter for digital audio signals
A digital audio matrix for optical and coaxial audio signals
On-wall receiver
This on-wall UP-ED/HDMI-AKTIV operates instead of the receiver (SP-2xCAT5RX-IR) from the CAT5 Extender System. It is a low-cost system for shorter distances and needs 2 CAT5e wires (Transmitter SP-2xCAT5TX-IR). Link