The Key Digital 4x1 4K/18G HDMI Switcher is a high-performance, four-input HDMI switcher with analog and digital audio de-embedding, auto switching, and app-ready controllability. Designed for professional AV installations in conference rooms, huddle spaces, classrooms, theater, and gaming spaces, it enables four HDMI inputs of up to DCI 4K30 12-bit 4:4:4 or DCI 4K60 8-bit 4:4:4 video to connect to a single display. Analog (3.5mm and balanced/unbalanced) and digital (optical and PCM) audio de-embed ports may feed audio of the selected source to an amplifier, a DSP, or a soundbar.
Integrating this 4x1 4K/18G HDMI Switcher with the Key Digital KD-AMP220 2-Channel Compact Digital Amplifier will enable an app-ready, all-in-one solution for control of video switching with sound and speech enforcement. The full buffer system manages TMDS re-clocking/signal regeneration, HDCP authentication to source and display, and EDID control handshake. The switcher supports a variety of lossless compressed digital audio formats, including Dolby and DTS. This switcher supports all SD, HD, VESA, UHD 4K, and DCI 4K video standards, with support for a maximum data transfer rate of 18 Gb/s. In addition to IR, RS-232, and TCP/IP control, this switcher can be controlled via trigger voltage and features status-monitoring LEDs.