Key Digital 4x1 4K/18G HDMI Switcher with Auto Switching and Audio De-Embedding

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.

Additional Details

HDMI Switching
Four HDMI sources are sent to one HDMI output/display.

4K Support
Support for up to DCI 4K (4096 x 2160) or UHD 4K (3840 x 2160) at 24/25/30/60 Hz and 4:4:4 (signals up to 18 Gb/s bandwidth).

HDCP Support
Fully licensed and compatible with HDCP 2.2.

High Dynamic Range
Supports Dolby Vision and HDR10 (High Dynamic Range) levels for more lifelike images through a greater range of luminance levels.

Resolution Support
Supports all SD, HD, and VESA (VGA, SVGA, XGA, WXGA, SXGA, and UXGA) up to 4096 x 2160.

Deep Color Support
Support for up to UHD 4K30 Hz 4:4:4 12-bit or UHD 4K60 4:4:4 8-bit.

Audio De-embedding
Audio of the selected HDMI input is de-embedded and output to the analog (3.5mm stereo balanced/unbalanced) and digital (optical and PCM) connectors.

Key Digital App Ready
Scan and detect population for pre-built GUI and TCP/IP control via the Key Digital app.

Auto-Sensing
Automatic selection of newly detected source and switching from newly disconnected source via hot plug detection voltage when enabled.

KD-AMP220 Control Mode
Command forward to the Key Digital KD-AMP220 2-Channel Compact Digital Amplifier for an all-in-one UI control of video switching, audio, and speech enforcement.

Full Buffer System
Manages TMDS reclocking/signal regeneration, HDCP authentication to source and display, and EDID control handshake.

PTZ USB Camera Integration
Connect to the Key Digital KD-CAMUSB 1080p PTZ camera for full PTZ control via the Key Digital app and the KD-XUSB2 USB extender for signal extension over Cat 5e/6.

EDID Management
Internal library with 15 internal EDID handshakes in addition to native EDID data copied from the output/display.

Lossless Compressed Digital Audio
Supports Dolby TrueHD, Dolby Digital Plus, DTS-HD Master Audio, and Dolby Atmos.

CEC Passthrough
Passthrough is supported from a connected display to a selected HDMI source.

Control
Controllable via panel button, serial IR, optical IR, RS-232, trigger in, TCP/IP, the Key Digital app, Compass Control Pro, and open API.