Name: 4K60 1×4 HDMI Splitter with Optical + Analog Audio Extraction
Brand: KanexPro
SKU: SP-HDMI1X4A-18G

Question 1

What is the maximum video bandwidth of the SP-HDMI1X4A-18G?

Accepted Answer

It handles 18Gbps, supporting HDMI 2.0b signals up to 4K2K at 50/60Hz with 4:4:4 color.

Question 2

Which HDCP versions does the SP-HDMI1X4A-18G support?

Accepted Answer

It is compliant with both HDCP 2.2 and HDCP 1.4.

Question 3

Does the SP-HDMI1X4A-18G need a control system or network to run?

Accepted Answer

No. It is configured entirely by two front-panel dial switches, one for EDID mode and one for 4K-to-1080p scaling, with no external control connection required.

Question 4

Can the SP-HDMI1X4A-18G feed displays and a separate audio system at the same time?

Accepted Answer

Yes. A typical setup drives up to four UHD TVs from the HDMI outputs while the optical output feeds an amplifier and the analog L/R output feeds a pair of 2.0 speakers, all from the single source.

Question 5

What connects to each port on the SP-HDMI1X4A-18G?

Accepted Answer

The HDMI source, such as a Blu-ray/DVD player or games console, connects to the IN port, and your four displays connect to OUT 1 through OUT 4. The optical S/PDIF output and the 3.5mm analog L/R output each carry the audio extracted from the HDMI input.

Question 6

How is the SP-HDMI1X4A-18G powered?

Accepted Answer

Connect the supplied 5V/1A DC adapter to the DC 5V jack and plug the adapter into an AC outlet rated 100-240V, 50/60Hz. The POWER LED lights when the unit has power.

Question 7

The SP-HDMI1X4A-18G shows no signs of life. What should I check?

Accepted Answer

Check the POWER LED on the front panel; it lights only when the unit has power. If it is dark, confirm the 5V/1A DC adapter is connected to the DC 5V jack and plugged into a live AC outlet.

Question 8

No picture reaches one of the displays on the SP-HDMI1X4A-18G. How do I isolate it?

Accepted Answer

Look at that port's HDMI OUTPUT LED, which lights when the OUT port is connected by cable to an active display; if it is off, check the cable and the display at that end. Then confirm the HDMI INPUT LED is lit, which shows the source is connected and active on the IN port.

Question 9

My install mixes a 4K TV with an older 1080p projector on the same source — will this drive both?

Accepted Answer

Yes, with one switch. Set the downscale switch ON and all four outputs get 1080p, so the projector and the TV both take the feed; set it OFF and all four get the native signal. It cannot run one output at 4K and another at 1080p at the same time.

Question 10

How do I get sound to an amplifier or DSP that has no HDMI input?

Accepted Answer

The unit de-embeds audio to two outputs at once: optical S/PDIF (carrying LPCM, Dolby 5.1, Dolby TrueHD/DD+, and DTS 5.1 formats) for a surround processor, and analog L/R on a 3.5mm jack (PCM 2.0) for a stereo amp or ceiling-audio input. No separate de-embedder needed.