1G Audio over IP Transmitter for IP-7000 Series - 

The CYP IP-A750TX takes advantage of Audio over IP’s flexibility for all installation environments, ideal for audio-only zones within a larger AV over IP system. This product features Analogue (Line in & Mic. in) and Digital input (S/PDIF and TOSLINK®) for added flexibility and, with the use of the CYP IP-CS7 controller (sold separately), allow the user to easily extend the connection between an audio source and an audio playback device via a Gigabit Local Area Network. The advantage of Audio over IP is that it can flexibly route the audio and use cost effective network cable, greatly reducing the cost of wiring and improving the user experience.