2 to 8 or 8 to 2 Channel Studio Combiner Splitter TRS Bi-Directional Analog Switch Line Monitor Controller Speaker Select switcher mult box Analog Speaker Box
Stream Bi-2 - Molitva (Andrew Philippov feat. Galina Korotaeva Cover).mp3 by Andrew Philippov | Listen online for free on SoundCloud
HDBaseT CSC Receiver Supporting HDMI 2.0 4K @ 60Hz 4:4:4 up to 40m (1080p up to 70m), Bi-directional IR & RS-232, Audio Breakout, Bi-directional PoH (PoE), HDCP2.2
2 Way Digital Audio Converter Bi-direction RCA Coaxial to Optical SPDIF Toslink | eBay
Bi 1000 (RE-ISSUE) – Form Factor Pro Shop
HD-SDI 10/100 Ethernet RS485 Analog Audio over single Fiber