Sunday, May 15, 2011

Slaying the Cable Monster

Tests prove $3 no name HDMI cable is just as good as $120 Monster HDMI cable. [Link]
You've probably experienced this when shopping for a new HDTV: A store clerk sidles up and offers to help. He then points you toward the necessary HDMI cables to go with your new television. And they're expensive. Maybe $60 or $70, sometimes even more than $100 (You could buy a cheap Blu-ray player or a handful of Blu-ray discs for that price!). The clerk then claims that these are special cables. Superior cables. Cables you absolutely need if you want the best possible home theater experience. And the claims are, for the vast majority of home theater users, utter rubbish.

HDMI BasicsThe truth is, for most HDTV setups, there is absolutely no effective difference between a no-name $3 HDMI cable you can order from Amazon.com and a $120 Monster cable you buy at a brick-and-mortar electronics store. We ran five different HDMI cables, ranging in price from less than $5 up to more than $100, through rigorous tests to determine whether there's any difference in a dirt-cheap cable and one that costs a fortune.
The first thing to remember about HDMI is that it is a digital standard. Unlike component video, composite video, S-video, or coaxial cable, HDMI signals don't gradually degrade, or get fuzzy and lose clarity as the signal fades or interference grows. For digital signals like HDMI, as long as there is enough data for the receiver to put together a picture, it will form. If there isn't, it will just drop off. While processing artifacts can occur and gaps in the signal can cause blocky effects or screen blanking, generally an HDMI signal will display whenever the signal successfully reaches the receiver. Claims that more expensive cables put forth greater video or audio fidelity are nonsense; it's like saying you can get better-looking YouTube videos on your laptop by buying more expensive Ethernet cables. From a technical standpoint, it simply doesn't make sense.

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