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HDMI Cables: Is there really a difference?

 
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xpat



Joined: 13 Mar 2008
Location: Kangnam baby

PostPosted: Tue Dec 30, 2008 12:26 am    Post subject: HDMI Cables: Is there really a difference? Reply with quote

George Ou has an interesting article on his blog titled

Warned woman against spending $260 on monster cable.

Quote:
I've been railing against the monster cable rip-off for some time and I was surprised by a real-life encounter today. I was shopping today in an electronics store and I saw a woman paying for two $130 HDMI monster cables next to me. I won't mention the store name because all electronics stores do this and try to get their customers to buy the most expensive cable possible despite the fact that there isn't a shred of difference. I looked at the cables and then looked at her and her only remark to me was "expensive cables". I said yes, they're real expensive and you're wasting your money since there isn't a shred of difference. She then explained that the salesman told her to get these and I told her a quick search on the Internet and she'd find something like these $9 cables which are actually 2 foot longer than the ones she was getting for $130.

There will always be someone somewhere who will try to claim that some engineer told them that there was a difference between monster HDMI cables and regular HDMI cables. The problem is that this is only partially true and the part that's true is totally irrelevant to the picture and sound in your HDTV and speaker system. The more expensive cabling might measure within a tighter tolerance but it's irrelevant in the digital world because the signal is rounded off. So when a digital stream of data comes in and the measured is well within the threshold for rounding off to the correct value of 0 or 1, getting a an even more precise signal is irrelevant. Furthermore, even if there is an error in the data transmission, there are error correction capabilities in the HDMI standard that can fix some small errors.

So while one might claim some theoretical benefit for using monster cables on analog audio and video signals - and I doubt the average person can see or hear the difference - there isn't even a theoretical benefit to using monster cables for HDMI. Retailers know that consumers are willing to spend a lot more money on anything if they perceive a benefit and monster cables are simply a monster rip-off.
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OneWayTraffic



Joined: 14 Mar 2005

PostPosted: Tue Dec 30, 2008 5:46 am    Post subject: Reply with quote

Absolutely true. If the signal gets through perfectly, as it almost always does on a regular digital cable then spending more money won't help at all. In an analogue system it might. So you should spend more money on speaker cables for example.

Think about your regular USB cable. When was the last time you had corrupted data on a file transfer? Or in any of the cheap cables in your PC. Not to mention that digital data can be encoded to automatically correct errors in transmission anyway. This explains how satelite pictures usually come in perfectly until the weather gets really really bad.

And anyone who buys what the salesman tells her to is just begging for it.
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Beeyee



Joined: 29 May 2007

PostPosted: Tue Dec 30, 2008 6:44 am    Post subject: Reply with quote

Analogue yes.
Digital no.
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red_devil



Joined: 30 Jun 2008
Location: Korea

PostPosted: Thu Jan 01, 2009 11:34 pm    Post subject: Reply with quote

The difference is the quality of the materials shielding the signal from interference...other than that, there's really little difference he's right.
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SeoulFinn



Joined: 27 Feb 2006
Location: 1h from Seoul

PostPosted: Thu Jan 01, 2009 11:43 pm    Post subject: Reply with quote

Little bit off topic as it has nothing to do with hdmi, but still quite funny!


"I'm so sorry, but I do not buy into 90% of the hype brought to us audiophiles by the commercial sector of our hobby and the home entertainment industry at large. My brother, an audio engineering whiz kid has proven to me what is real and what is not. Let me rehearse with you an example of how he does this.

We gathered up a 5 of our audio buddies. We took my "old" Martin Logan SL-3 (not a bad speaker for accurate noise making) and hooked them up with Monster 1000 speaker cables [ed. Monster Ultra Series THX 1000 Audio Interconnects] (decent cables according to the audio press). We also rigged up 14 gauge, oxygen free Belden stranded copper wire with a simple PVC jacket. Both were 2 meters long. They were connected to an ABX switch box allowing blind fold testing. Volume levels were set at 75 Db at 1000K Hz. A high quality recording of smooth, trio, easy listening jazz was played (Piano, drums, bass). None of us had heard this group or CD before, therefore eliminating biases. The music was played. Of the 5 blind folded, only 2 guessed correctly which was the monster cable. (I was not one of them). This was done 7 times in a row! Keeping us blind folded, my brother switched out the Belden wire (are you ready for this) with simple coat hanger wire! Unknown to me and our 12 audiophile buddies, prior to the ABX blind test, he took apart four coat hangers, reconnected them and twisted them into a pair of speaker cables. Connections were soldered. He stashed them in a closet within the testing room so we were not privy to what he was up to. This made for a pair of 2 meter cables, the exact length of the other wires. The test was conducted. After 5 tests, none could determine which was the Monster 1000 cable or the coat hanger wire. Further, when music was played through the coat hanger wire, we were asked if what we heard sounded good to us. All agreed that what was heard sounded excellent, however, when A-B tests occurred, it was impossible to determine which sounded best the majority of the time and which wire was in use. Needless to say, after the blind folds came off and we saw what my brother did, we learned he was right...most of what manufactures have to say about their products is pure hype. It seems the more they charge, the more hyped it is." (LINK)
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eamo



Joined: 08 Mar 2003
Location: Shepherd's Bush, 1964.

PostPosted: Fri Jan 02, 2009 7:17 am    Post subject: Reply with quote

Beeyee wrote:
Analogue yes.
Digital no.


Correct.

A digital out to a digital receiving connect does not need a superior cable. If it works, it works.

In analogue......wow....different matter......there are many kinds of DAC chips. Quality of components really matter here. Many kinds of cable that carry analogue signal.

In my old $2000 hi-fi, back in the 90's, one cable from the CD-player to amp sounded different from another. One was more bass. Another more detailed....but that's analogue to analogue.....the output of a CD player is analogue. So cables matter.

When you're just sending a digital signal from digital out to digital in then quality of cable is unimportant.
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