![]() It is best to use powered splitters to avoid handshake or signal loss issues. ![]() Splitters can be powered or passive (no power needed). Splitters with more outputs are primarily for business and commercial use, where one source needs to be sent to multiple TVs or projectors. HDMI splitters that send two, three, four, or more signals from a single HDMI source are available, but for consumers, two is usually enough. You can use an HDMI switcher with two HDMI outputs to send the same HDMI signal to two TVs or a video projector and TV, but you can use an HDMI splitter if you don't need a switcher. This is important when switching between devices, as there is a temporary break in the handshake until the newly selected device locks in with a new handshake. The switcher must also support HDMI handshake requirements implemented via the HDCP (High-bandwidth Digital Copy Protection) or HDCP 2.2 for 4K devices protocol between source devices and the TV or video projector. Make sure that your HDMI switcher is compatible if you are routing the output of the switcher through a home theater receiver that provides decoding for advanced audio formats, such as Dolby TrueHD, Atmos, DTS-HD Master Audio, DTS:X. If you need to pass HDR-encoded or 3D video signals, your HDMI switcher must have those capabilities.Īll HDMI switchers pass standard Dolby Digital and DTS Digital Surround audio signals. If you have a 4K Ultra HD TV and 4K source components, the switcher must also be 4K compatible. HDMI switchers available for consumers are at least 1080p and Dolby Digital/ DTS compatible. Lifewire / Emily Ramirez What to Look For in an HDMI Switcher Output Resolution
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