Product Description
The Key Digital KD-DA1X4DC is a top - notch 4K 18G HDMI distribution amplifier. It allows you to connect a single HDMI video source to multiple video displays, whether they support 4K or 1080p resolution. With an option to down - convert 4K to 1080p, it offers great flexibility. Engineered for professional audio - video installations in digital signage, surveillance, and more, it combines high - quality performance and reliability at an affordable price. This amplifier features L/R analog and optical digital audio de - embed ports, making it easy to integrate with amplifiers, distributed audio systems, or sound bars. It supports all video resolutions up to 4K/UHD, 4:4:4 chroma sub - sampling, 12bit deep color, and HDR. Professional tools like EDID handshaking and Forced Hot Plug Detection solve common HDMI handshaking and integration problems, ensuring easy installation in any environment. Key features include: 1 HDMI source to 4 HDMI outputs, Ultra HD/4K support at various frequencies and 4:4:4 (up to 18Gbps bandwidth), support for all SD, HD, and VESA resolutions up to 4096x2160p, 4K to 1080p down - conversion based on connected display EDID, audio de - embedding at digital Optical and analog 3.5mm stereo connectors, a full buffer system for signal management, EDID management with an internal library, and support for surround audio like DTS - HD Master Audio, DTS:X, Dolby TrueHD, and Dolby Atmos. Technical specs: Input and output are Type A 19 - pin female HDMI connectors. TMDS bandwidth is 18 Gbps. Input DDC signal is 5 Volts p - p (TTL), and input video signal is 1.2 Volts p - p. It uses the KD - PS5V2ASC power supply, 5V/2A, 100 - 240VAC, 50 - 60Hz with an interchangeable head and screw - in connector. It meets CE, RoHS, WEEE regulations. The enclosure is black metal. Product dimensions are 7.4” x 2.72” x 0.78” (188 x 69.2 x 19.9mm), and packaging dimensions are 9.44” x 5.67” x 3.15” (240 x 144 x 80mm). Product weight is 0.7 lb, and shipping weight is 1.4 lb. Accessories include a KD - PS5V1ASC 5V/1A DC power jack (screw - in type) and 2 L - shaped mounting brackets.
Using the Key Digital KD - DA1X4DC is a breeze. First, connect your HDMI video source to the input HDMI connector. Then, connect up to four HDMI displays to the output connectors. If your displays only support 1080p, you can enable the 4K to 1080p down - conversion feature. The amplifier will adjust the resolution based on the EDID of the connected displays. To use the audio de - embedding feature, connect your amplifier, distributed audio system, or sound bar to the L/R analog or optical digital audio output ports. When it comes to power, plug the KD - PS5V2ASC power supply into a 100 - 240VAC outlet. Make sure to handle the power supply carefully as it has an interchangeable head and screw - in connector. For maintenance, keep the amplifier in a clean and dry place. Wipe it with a soft, dry cloth regularly. Avoid exposing it to extreme temperatures or humidity. If you encounter any HDMI handshaking issues, the EDID handshaking and Forced Hot Plug Detection features should help resolve them. Also, check that all connections are secure. Remember to follow the CE, RoHS, and WEEE regulations during usage and disposal.
