The SP-HDMI-4A is used to split an HDMI audio/video (or DVI) source for display on 4 outputs. It supports HDTV resolutions to 1080p. It can drive each buffered output more than 12 meters (40 feet) on quality HDMI cable
The SP-HDMI-4A uses and intelligent method to report the EDID to the source. Understanding how this done can help certain installations where the 4 outputs may be connected to different LCD's.
Since the unit supports HDMI with HDCP, priority is given to the outputs connected to HDTV rather than DVI LCD's. Though the unit can split a DVI source for 4 DVI LCD displays (with DVI to HDMI cables or adapters), it is not recommended to connect the input in that situation to an HDMI source such as a Blu-ray player, since the DVI LCD's will not support the video anyhow as most DVI LCD's are 4x3 format, do not support HDCP, and cannot handle embedded HDMI audio.
With regards to the HDTV's connected to the outputs, if all of them support 1080p then the order of connection is immaterial. But if some HDTV's do not support 1080p, they should be connected to higher number outputs. In short, please connect the TVs that support the highest resolution to lowest number outputs, such as this:
|Output 1||HDTV supporting 1080p|
|Output 2||HDTV supporting 1080p|
|Output 3||HDTV supporting 1080i|
|Output 4||HDTV supporting 720p|
This will force the splitter to report 720p as the maximum supported resolution to the source and therefore all the connected HDTV's will have a display.