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HDMI Questions
What’s the difference between HDMI 2.0 and HDMI 2.1?
HDMI 2.1 offers significantly higher bandwidth than HDMI 2.0 (48Gbps vs 18Gbps), supporting 4K at 120Hz, 8K at 60Hz, Dynamic HDR, and advanced gaming features such as Variable Refresh Rate (VRR) and Auto Low Latency Mode (ALLM). These upgrades provide smoother visuals and better sound when used with compatible devices.
Do I need an Ultra High Speed HDMI cable for 4K/120Hz or 8K content?
Yes. Ultra High Speed HDMI cables are certified to handle the full 48Gbps bandwidth required for 4K/120Hz and 8K signals. They also ensure compatibility with features like eARC and Dynamic HDR for optimal performance.
How long can an HDMI cable be before signal loss occurs?
Passive HDMI cables typically work up to 5–7m without issues. For longer runs, use active HDMI or fibre optic HDMI cables, which maintain full 4K/8K signal integrity over extended distances.
Is HDMI backward compatible with older versions and DVI connections?
Yes. HDMI is backward compatible, meaning newer cables work with older HDMI devices. With adapters, HDMI can also connect to DVI, though DVI does not carry audio.
Can HDMI carry both high-resolution video and audio formats like Dolby Atmos?
Absolutely. HDMI transmits both digital video and multi-channel audio, including Dolby Atmos and DTS:X, through a single cable for a clean, high-fidelity connection.
Hi,
I’ve recently bought 2 Pearl 48 HDMI from yourselves.
One to connect Bose Ultra soundbar to a Sony OLED TV.
The other to connect from EE box to above TV - I understand the plug arrow point for this has to go to the TV.
1) Re the HDMI cable from Bose soundbar - does the plug arrow point go to the TV or the Soundbar?
2) Which of the 2 cables plug into the 4K 120Hz eARC/ARC socket?
Thanks for your help.
HDMI cables run in the DIRECTION OF THE VIDEO SIGNAL.
An HDMI connecting a video source (such as an EE box, Sky Q, Bluray player etc.) will run toward the display (such as a TV).
An HDMI connecting a soundbar will also run toward the display. Soundbars just receive audio from the TV via the eARC or ARC connection. Since video sources sometimes connect to soundbars, the video signal would run toward the display. This is a use case of the Audio Return Channel (ARC).
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