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Hardware 2.0

Adrian Kingsley-Hughes

Don't buy into the expensive cable hyperbole!

By | August 19, 2010, 9:57am PDT

A cable is a cable is a cable, and don’t let marketing or people making claims they can’t prove change your mind on that.

Rarely does a week go by that I don’t get an email from someone asking me whether changing some cable in or connected to their PC will boost performance in some way or other. Usually this person comes to me with a link to some product that makes all sorts of wild promises. It’s with sadness that I have to inform the individual that no, changing one cable for one that can be more than 100 times more expensive won’t make a jot of difference.

Unless your existing cable is damaged, not working or the wrong cable, changing the cable is a pointless exercise, no matter how expensive or bold the marketing claims may be.

Cable snobbery is rife, and one area of consumer electronics where it can be found in abundance is amongst audiophiles. earlier today I came across a blog post by journalist Malcolm Steward who was boasting the benefits of “Super SATA” cables.

Take it away Mr. Steward:

I listened to the cables in my NAS feeding my Naim HDX/DAC/XPS and clearly identified easily perceptible improvements through my highly revealing active Naim DBL system. Quite what it is that wrought these improvements I do not know. My only guess is that the Super SATAs reject interference significantly better than the standard cables and in so doing lower the noise floor revealing greater low-level musical detail and presentational improvements in the soundstage and the ‘air’ around instruments.

Eh?

The most marked and worthwhile difference, I felt, was in the increased naturalness in both the sound of instruments and voices, which seemed more organic, human and less ‘electronic’, and in the music’s rhythmical progression, which was also more natural and had the realistic ebb and flow that musicians exhibit when playing live. In short, recordings sounded more like musical performances then recordings.

So, nothing that we can measure? OK … remember we are talking about SATA cables here, carrying 0s and 1s between the hard drive and motherboard.

As you can see the cables do not look anything special even though they are far more robust than the standard issue flat cables, and they are are irradiated, I am told, to vapourise any moisture that has found its way into the molecular structure of the conductors.

Oh, OK, right, they’re irradiated so that … WUH???? Sorry folks, but we are now into the realm of sci-fi and fantasy. This is utter nonsense, and if anyone disagrees with me, then show me the data to prove your point. Over the years I’ve tested all sort of “ultra” and “pro” cables, from USB, to network to HDMI, and I’ve not come across one that made a jot of difference in the real world.

Save your money and spend it on something more sensible … like magic beans or something.

SHOW ME THE DATAAAAAAAAA before I SHOW YOU THE MONEEEEEEY!!!!!

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Adrian Kingsley-Hughes is an internationally published technology author who has devoted over a decade to helping users get the most from technology.

Disclosure

Adrian Kingsley-Hughes

All opinions expressed on Hardware 2.0 are those of Adrian Kingsley-Hughes. Every effort is made to ensure that the information posted is accurate. If you have any comments, queries or corrections, please contact Adrian via the email link here. Any possible conflicts of interest will be posted below. [Updated: February 23, 2010] - Adrian Kingsley-Hughes has no business relationships, affiliations, investments, or other actual/potential conflicts of interest relating to the content posted so far on this blog.

Biography

Adrian Kingsley-Hughes

Adrian Kingsley-Hughes is an internationally published technology author who has devoted over a decade to helping users get the most from technology -- whether that be by learning to program, building a PC from a pile of parts, or helping them get the most from their new MP3 player or digital camera.

Adrian has authored/co-authored technical books on a variety of topics, ranging from programming to building and maintaining PCs. His most recent books include "Build the Ultimate Custom PC", "Beginning Programming" and "The PC Doctor's Fix It Yourself Guide". He has also written training manuals that have been used by a number of Fortune 500 companies.

Adrian also runs a popular blog under the name The PC Doctor, where he covers a range of computer-related topics -- from security to repairing and upgrading.

Talkback Most Recent of 38 Talkback(s)

  • I can't speak to SATA cables...
    but the science on audio and video medium is well documented. I'd venture to say it applies to any data-carrying medium as they all are transmitting the same electrons across a copper wire. A quick and easy read can be found here... http://www.bluejeanscable.com/articles/shielding.htm
    ZDNet Gravatar
    jasonp@...
    19th Aug 2010
  • It's pretty simple really
    @jasonp@...

    Digital cables carry 1's and 0's. The 1's and 0's either get there or they don't. There's no "quality" of the 1 or 0, it's just a 1 or a 0.
    ZDNet Gravatar
    rtk
    19th Aug 2010
  • Audio and video...
    don't precisely follow the same rules as data stored on your hard drive. Ask anybody who has ever worked in the audio or video industry, including your local cable installer. They'll tell you that cable shielding indeed can have a major impact on the quality of signal. Of course, you could have just read the article I linked to and found that out yourself. Guess you were too busy.
    ZDNet Gravatar
    jasonp@...
    19th Aug 2010
  • jasonp@... that for analog cable... not digital..
    @rtk .. shielding and quality of cable will affect the amount of data and the length a digital cable but all this stuff is standardize so even the cheap cable will meet the standard and the 0 and 1 do get there.. that's the difference with digital and analog.. with digital either it gets there or is doesn't... the cable is good enough or not.. analog the signal can get there in various degrees of degradation.. when bits aren't getting there you don't see slightly different colours or slight differences in picture.. you see larger amounts of picture break up or you see a perfect picture.. that's what these old school audio guys don't understand.. the don't understand digital...

    transferring bits is REALLY easy.. every cheap $5 CD player inside of every cheap computer transfers mega bits and terabits of data every day perfectly, bit for bit, not one bit error.. for computers every bit has to be perfectly transferred or it will result in an error.. it's not as forgiving as in audio or video and yet a $5 CD player in a cheap computer can do this perfectly bit for bit and yet audiophiles want us to believe we need to spend thousands and thousands of dollar on audio equipment and cables to achieve what the cheapest computer equipment does perfectly bit for every day of the week..

    transfering bits is easy.. just get a cable that works.. changing those bits into analogue and out to speakers and reproducing music.. that's the part where you can argue about spending money.. don't sweat the digital portion of the transport.. either those bits make it or they don't.. that's how digital works..
    ZDNet Gravatar
    doctorSpoc
    19th Aug 2010
  • RE: Don't buy into the expensive cable hyperbole!
    @jasonp

    Data stored on my hard drive travels as 1's and 0's to my mainboard, if the cable works the 1's and 0's get there, if it doesn't then my computer won't even boot. There is absolutely nothing that I can do to make those 1's and 0's higher or lower quality.

    I did open the article you linked to, but immediately noticed it was about analog cable.
    ZDNet Gravatar
    rtk
    19th Aug 2010
  • SATA cables are digital
    Shielding would only improve in data speed of transmission if anything at all.

    If we are talking about analog signals over wire, shielding could have a significant impact, as it doesn't allow outside interference.

    SATA carries digital signals and there is considerable robustness in the data transfer, so if a bit gets lost (and they do!!!) some method of error correction compensates for the loss. Shielding would only minimize the errors. The quality of the sound carried by 0 and 1's is only dictated by how many bits the codec used in the process. Cables have no other impact that transfer speed. For the digital data transfer shielding has no noticeable effect !!!!

    So even I may disagree with the author in MANY respects, and don't even like him. But is totally correct in his statements. DONT WASTE your money!
    ZDNet Gravatar
    Uralbas
    19th Aug 2010
  • RE: Don't buy into the expensive cable hyperbole!
    @jasonp@... article is about analog signal, not digital ones. You don't have degrading signal/noise ratio in digital signal. If available bandwidth is exceeded by what you try to put through, and if your protocol is not adaptative, you start losing signal. Either you lose everything or you lose chunks of it, Usually that is very obvious in the result ( visible or audible artefacts ). A better cable will mean you can have a longer one before experiencing signal loss. If your source is far from your destination, you can think about investing in more expensive cables. If you are in an environment full of interference sources and if you experience data loss, you can go for shiedled cables, but investing into monster cables of all sort does not have the same benefi as in analog signal. Most of the time it's a complete loss of money on no ground.
    ZDNet Gravatar
    s_souche
    19th Aug 2010
  • ZDNet Gravatar
    lincc240
    19th Aug 2010
  • We are talking digital here, not analog.
    @jasonp@...

    I have had boneheads try and convince me they can hear the difference between 300 optical audio cable VS a 30 dollar one. If ya ain't gettin bit errors, ya ain't hearen a difference.
    ZDNet Gravatar
    Bruizer
    19th Aug 2010
  • with audio, you don't hear small changes in sound when you get an error..
    @Bruizer - you hear huge a huge tick sound. i read an article with this a while ago.. they tested a $99 Phillips CD player and the syphoned off the bits to check for errors.. the only way they could get an error was to drop the CD player from a foot in the air or scratching the CD deeply with a nail. errors on CDs result in a very loud tick noise not some subtle nuanced change in sound... if you're not hearing huge tick during music playback then you know that you're not getting any errors.
    ZDNet Gravatar
    doctorSpoc
    20th Aug 2010
  • RE: Don't buy into the expensive cable hyperbole!
    You've not heard of packet loss then? Every one of your cables transmits every high and low signal correctly and there's no need for any error correction or re-try? No latency?

    Of course changing a cable can improve things - I agree that changing a lead running well inside it's specification is unlikely to make a noticeable difference but losses have to come from somewhere and cables and connectors are a prime target.
    ZDNet Gravatar
    citi_fog
    19th Aug 2010
  • RE: Don't buy into the expensive cable hyperbole!
    @citi_fog
    We're not talking about packet loss. We're talking about audio signals. In the length of run we're talking about there won't be much of any kind of loss.

    And characteristics like "the air around instruments" and so forth aren't going to be affected one jot by packet loss or anything else to do with cabling.
    ZDNet Gravatar
    clfitz
    19th Aug 2010
  • If you think you're hearing any ..
    @citi_fog .. difference in an audio recording because you changed a * SATA cable between your m/b & hdd, than those differences are in your head ..

    "..In short, recordings sounded more like musical performances then recordings."

    As Adrian says, this is based on "nothing" - where's the scientific data to back the claims?? I get it, this is simply another marketing gimmick in a vain attempt to try and pass off snake skin oil as liquid gold.

    "..Of course changing a cable can improve things.."

    Duh ...uhhh yeah .. for starters, it'll make a difference if it's plugged in .. that 'normally helps' .. and with some electrical current from the bus connector to the drive, yes, there should be a transfer of data (proviso: healthy, working m/b & h.d.d). As rtk has already stated, since when did binary data have "quality"?!? I mean .. really?? Can you .. h*ck anyone .. show me an 'analog 0 bit' and a 'digital 0 bit'?? No? That's basically what these guys (and you) - and any other loony involved is trying to claim here.

    I'll lay it down nice & easy like, if no-one else cares to: you control the quality of an audio recording (e.g. aac, m4A, mp3, OGG, wma - to name few audio file types) by choosing an audio editng app' (e.g. Audacity, dBPowerAmp, Nero, GoldWave, etc). Once you're app is up and running (and obviously dependent on the capabilities built in to it) you can alter the encoding type (e.g. CBR, VBR, etc) and also choose the frequency for the new recording (e.g. 22KHz).

    Well, you either get the point or not .. which is this: if you want to alter sound quality of recorded "digital" sound on your p.c, the only way to do it is by recoding the audio files being worked with.

    Back to the main story: any claim that a SATA cable can *somehow* magically alter the quality of audio data (..as if) is the height of absolute baloney.

    "...Lies .. damned lies .. and video tape .."
    ZDNet Gravatar
    thx-1138_@...
    20th Aug 2010
  • I agree, ive told people in stores buying HDMI cables, sales guy not happy
    It pisses me off to see some sales guy trying to talk some unknowing person into buying an 80 dolla cable when they can use the 15 dolla cable with the same results. Digital signaling will either work or not, there is no signal degradation. Oh and BTW, signal degradation occurs over the length of the cable, so a "higher quality" cable of same length will provide almost unmeasurable difference.

    BTW: For those of you who dont know, buy your HDMI cables from online stores, should be able to find them for under $5. Buy 5-10 cables to make the shipping worthwhile and i bet you wont have to buy another HDMI cable, heck sell the unused ones to your friends for $20 bucks... bet they will think they are getting a deal. ( also seen them on craiglist ).
    ZDNet Gravatar
    Been_Done_Before
    19th Aug 2010
  • RE: Don't buy into the expensive cable hyperbole!
    Wow .. nice to hear someone deflowering hyper cable "bro..." broke." .. eRrr .. "croakers"
    At five times around the world in one second I agree there's no increase to be made by spending more of our gold to facilitate acceleration from two points no more than a milisecond apart.
    it's unperceivable that anyone can expect more from a piece of data string .. eRrr.. or was that a frayed knot.
    ZDNet Gravatar
    mdbobbo
    19th Aug 2010

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