Tesco HDMI cables

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Anonymous

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hi daveh , lovely morning , if the difference in terms of build quality/quality of materials used are VAST , you shouldnt have a problem pointing out a few then , should you ??
 

daveh75

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hammill:daveh75:maxflinn:

id say most hdmi cables are made in the same factories , branded differently ,slightly different external design , colours , different prices ...

many other things are...

Have you ever compared a freebie cable to 'higher end' cable!
Yes. I have four HDMI cables, two free (Humax, Oppo (although this is a "quality" cable) an Ixos and a 5* Chord. I spent a few hours trying all combinations desperately trying to justify the premium I paid for the Chord, but I could not see (on a 5090) or hear any difference whatsoever.Well, at least you've compared them! Which was my point. ......

FWIW, i can't see/hear any differences between HDMI cables, though i wasn't trying hard to "justify the premium" because i've never paid for an HDMI cable.
 

hammill

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daveh75:hammill:daveh75:maxflinn:

id say most hdmi cables are made in the same factories , branded differently ,slightly different external design , colours , different prices ...

many other things are...

Have you ever compared a freebie cable to 'higher end' cable!
Yes. I have four HDMI cables, two free (Humax, Oppo (although this is a "quality" cable) an Ixos and a 5* Chord. I spent a few hours trying all combinations desperately trying to justify the premium I paid for the Chord, but I could not see (on a 5090) or hear any difference whatsoever.Well, at least you've compared them! Which was my point. ......

FWIW, i can't see/hear any differences between HDMI cables, though i wasn't trying hard to "justify the premium" because i've never paid for an HDMI cable.

I see you also have an Oppo. Have you found a cable that is an improvement on the Oppo one?
 
A

Anonymous

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well if you read back through this thread , several people were rubbishing tesco cables , that had never tried them , i simply asked them why they felt they wouldnt be as good as their more expensive cables , and obviously , there was no answer , hey , people earn there money , let them spend it how they like , thats up to them ...
 
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Anonymous

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daveh75:

If you compare a cheap/freebie cable to something more exotic, in terms of build quality/quality of materials used at least, the differences are more than "slight". They're vast.

Exotic cables springs to mind images of the tropics and dancers. Much better than some grey factory in china.
 
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Anonymous

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Andrew Everard:
stefanr:the demise of Hi-Fi News & Record Review

Surely rumours of HFN&RR's demise are so far greatly exaggerated? Or do you know something I don't?

Opps, there it is, thought I'd lost it forever, a terrible Faux Pas. Sorry HF&RR... I don't get out much!!!

Well as a comparison, I built some speakers as a DIY project from the very magazine written by Dave Berryman back in 1992, great sound and could rival ones costing double the kit/build cost, I know because I did comparisons.

Tag Mclaren build speakers, would you by a pair? probably only if you had too much money and wanted a pair of cellos in the corner or the ugly ones, now compare them with a manufacturer that has being building speakers since time and sell reasonably priced speakers.... what does your ear tell you? Actually don't answer that because if you brought the Tags they would only hear one thing "They're expensive so they're the best in the world".

Anyway I digress, back to cables.

While I agree to some point that there may be a difference between the cheapo black cables that come in the box with steel connectors to the ones you can buy with good gold ones.

You don't have to look too far to find very reasonably price cables (less than £10) that have great build quality, offer good shielding/insulation (imo the main usp), good internal cabling (oxygen free copper etc etc) and strong well-made gold plated connectors.

Now compare them with a £40+ cable that you convinced yourself is the better cable because it's more expensive or some muppet has told you in a shop or forum. As said it's your money, enjoy spending it but don't knock people for having sense and asking the questions.
 

JoelSim

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maxflinn:well if you read back through this thread , several people were rubbishing tesco cables , that had never tried them , i simply asked them why they felt they wouldnt be as good as their more expensive cables , and obviously , there was no answer , hey , people earn there money , let them spend it how they like , thats up to them ...

I didn't rubbish Tesco cables.

I did rubbish Tesco's culture and how they treat suppliers (having been one once). Yuck.
 

idc

Well-known member
This Tesco cable is twice the price of the 5 star rated ThatCable HDMI. I bought a ThatCable headphone extension cable for £5 and was impressed with the sound improvement over a Sony one that cost £5ish. So I have bought another ThatCable microphone cable to see how it is made with a view to make my own cable for my AKG headphones. I have pulled it apart and the build quality is superb. But the components used are very cheap (well it was easy to pull apart). So that may affect performance. I will know more one I put together the better quality parts I have been sourcing,

It is perfectly possible to make a very good cable for very little. If it has the same build quality and components as a more expensive one it should, as The Record Spot shows, sound the same. If it is Tesco we are talking about there are massive economies of scale and ruthless purchasing policies that mean its cables may be the equivalent of £50 HDMIs if sold by someone else.

If you read up on jitter and the timing of the digital signal you find evidence that cables can affect jitter and so the sound. There is also evidence that two digital cables with the same impedence, no matter the price, will sound/look the same.
 
A

Anonymous

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I really tried to stay out of this but:

There are 5 (last time I looked on HDMI.org) defined standards for HDMI cables. A cable or it's packaging may only bear the logo of the maximum standard it's capable of passing. Most of the testing is self testing done by the maker. So if a cable is legally marked as compliant to one of the standards then that's it.

Do different companies have different quality? - well if you're talking reliability and robustness over time then clearly yes there is scope for quality to vary in these areas from one supplier to another. If you're talking gold plated v not gold plated connectors again yes.

Are there low quality untested ( the black unbranded Chinese ones that come free with kit) HDMI cables? - Yes there are.

Do Chord, Ixsos, Monster (insert brand name of choice) each make their own cable starting from basic raw materials? I don't think so - at best they buy and assemble and package the parts. Hopefully with good proceedures and good Quality Control to provide consistent product.

Is Which a respected consumer organisation - yes it is by millions of people. If most of what they wrote was tripe they'd have vanished years ago.

I often wonder why we don't see this same debate about the qualities of ethernet cable in the PC mags? or DVI-D or VGA cable come to that.

So I'd say it's fair to conclude that for most people most of the time a £10 Tesco cable will probably do the job then need it to do perfectly well.

For those that seek the last 1% or 0.1% or 0.01% (you choose) of perfection then they have the perfect right to spend whatever they like on an HDMI cable. If those people percieve that their choice confers benefits that other cables will not confer then thats fine.

After all some people drive Bentleys and some people drive Fords. At the end of the day both transport you to your destination.
 

Pindi

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Excellent post.
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idc

Well-known member
welshboy:

I often wonder why we don't see this same debate about the qualities of ethernet cable in the PC mags? or DVI-D or VGA cable come to that.

Thats because data transfer and bit perfect is all such cables need to do. Jitter is the added dimension for music and film which makes digital cables in hifi and AV different.

welshboy:

For those that seek the last 1% or 0.1% or 0.01% (you choose) of perfection then they have the perfect right to spend whatever they like on an HDMI cable. If those people percieve that their choice confers benefits that other cables will not confer then thats fine.

Audiophiles and AV addicts do get very excited about very small differences that most don't bother to notice.
 
A

Anonymous

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idc:welshboy:

I often wonder why we don't see this same debate about the qualities of ethernet cable in the PC mags? or DVI-D or VGA cable come to that.

Thats because data transfer and bit perfect is all such cables need to do. Jitter is the added dimension for music and film which makes digital cables in hifi and AV different..

Can you explain that? (I know what jitter is) Why is a digital data stream different between 2 applications that do the same thing? I mean I watch pictures on my PC monitor and I watch pictures on my TV.
 

idc

Well-known member
If you send data say from a PC to a printer all that it needs to do is get there and not be corrupted. Music in particular needs timing as well as all of the information to be uncorrupted and that has to happen in real time. You wait for a document to print in a way you would never wait for music to play or pictures to appear.

The DAC, whether it is in your hifi DAC, AV, PC or whatever has to get the timing of the data right. I am not sure with visual, but I assume it is the same as audio, but the evidence is that we can detect the jitter and it has an effect.

Full detail about jitter and its effects and the role of cables see here

http://community.whathifi.com/forums/t/385137.aspx
 
A

Anonymous

Guest
idc, mate, I'm not picking on you but you're not quite right. Whereas data such as print data or whatever has a position indicator put into each packet, not to mention provision to send an acknowledgement (and to all the computer buffs, yes, I'm simplifying considerably ) , plus the printer can ask for a resend, audio streaming doesn't have that luxury. Instead, each audio packet is clocked, as in time stamped, then sent in a continuous stream. What the DAC the other end does is to recreate the original by running a parallel clock and rebuilding the data accordingly, and it's this that causes the problem. Some bits may not arrive at the expected moment, and this offset is called jitter.

Whether you can hear this jitter or not I have no idea, never having listened for it, but if it is at a high level theoretically it certainly should be audible.
 

vonchief

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Surely the day will come when what hi fi will have to admit they got it wrong on this one and agree there is no difference in picture quality with HDMI cables.

I have tried many and even though i have quite expensive ones in my system (chord) i can honestly say its no different to the Tesco ones which i have tried.

There is nothing wrong with my eyes and people are bound to say with a better screen or player you would be able to see a difference,but they would just be kidding themselves trying to justify their expensive cables.

I have no problem with expensive cables, they look nicer and are probably more robust and i wont be switching back to cheaper ones myself.
 

idc

Well-known member
Grottyash, you correct away if you think I have got something not quite right.
emotion-21.gif


It just after years of the round and round digital cable debates I had time on my hands to do some reading. I have no scientific background whatsoever and so I have been simplifing like mad. Part of that was to produce an easy to understand laymans guide to this issue of jitter and the potential for digital cables to differ and have an effect on digital transfer.
 
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Anonymous

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With Digital SPDIF jitter was recognized as a design oversight. If the dac had no buffer and took the signal directly from the SPDIF and was wide band to cope with variation in transport decks local oscillators then jitter might be a problem. It has been recognized as a problem with the original SPDIF specification but due to so many devices using SPDIF the specification could not be changed.

However I believe that with CD Transport > SPDIF Cable > DAC most/all modern consumer receiving dacs use a ram buffer and the rate it is clocked out is dictated by the dacs own local clock. So any jitter is the product of the receiving dacs own local oscillator not the transport deck or cable. This local clock can have a tight cutoff which helps eliminate jitter. But since no local oscillator is perfect some jitter may remain, but how audible it is, is another question.

Since it was a known issue with SPDIF I would be surprised if the engineers designed HDMI with the same problem.
 

sonycentre

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I guess it all down to what people are willing to pay.If you are happy with a cheap hdmi cable,then so be it.I dont profess to own the best gear in he world,damm itstaken me 5 years to build my system up.But i can tell the diffence with diffrent cables,the free cable that sky provide for its hd box does the job,same for my xbox elite,but when i changed to the ixos cables i purchased,then i could see more detail,colour,and crispness to the picture.
 

idc

Well-known member
The audibility and I suppose visibilty of jitter, is the question and from my reading there is no real agreement. But there is evidence to point to it being a factor in overall sound quality, lower jitter 'lifts a veil' from the music. But, to throw a curved ball into the park, some higher jitter products have been rated as better sounding than lower jitter ones.
 
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Anonymous

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JoelSim:
maxflinn:well if you read back through this thread , several people were rubbishing tesco cables , that had never tried them , i simply asked them why they felt they wouldnt be as good as their more expensive cables , and obviously , there was no answer , hey , people earn there money , let them spend it how they like , thats up to them ...

I didn't rubbish Tesco cables.

I did rubbish Tesco's culture and how they treat suppliers (having been one once). Yuck.
hi joel , i wasnt referring to you , anyway , its friday night , let the drinking begin
emotion-19.gif
, have a good one everybody...
 

aliEnRIK

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hammill:daveh75:maxflinn:

id say most hdmi cables are made in the same factories , branded differently ,slightly different external design , colours , different prices ...

many other things are...

Have you ever compared a freebie cable to 'higher end' cable!
Yes. I have four HDMI cables, two free (Humax, Oppo (although this is a "quality" cable) an Ixos and a 5* Chord. I spent a few hours trying all combinations desperately trying to justify the premium I paid for the Chord, but I could not see (on a 5090) or hear any difference whatsoever.

Is the 5090 properly calibrated?

Do you have 'dirty mains' where you live, or a high level of EMI?

Does it run through a decent mains conditioner?

If you answered NO to the 1st question then you might not be able to tell a difference anyways

If you answered YES to the 2nd question (or 'dont know') then its very possible that the tvs struggling to produce a decent enough picture as it is and so again you wouldnt be able to tell a difference

If you answered NO to the 3rd question then its the same answer as above
 

bob.g

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rayh:

Well Which magazine have confirmed that you do not have to buy expensive HDMI cables, as there is no differencw between a £100 cable and a £10.00 Tesco cable,

Any comments What Hi-Fi

Rayh, I think the answer to your question is a clear 'Yes'.
 
A

Anonymous

Guest
aliEnRIK:hammill:daveh75:maxflinn:

id say most hdmi cables are made in the same factories , branded differently ,slightly different external design , colours , different prices ...

many other things are...

Have you ever compared a freebie cable to 'higher end' cable!
Yes. I have four HDMI cables, two free (Humax, Oppo (although this is a "quality" cable) an Ixos and a 5* Chord. I spent a few hours trying all combinations desperately trying to justify the premium I paid for the Chord, but I could not see (on a 5090) or hear any difference whatsoever.

Is the 5090 properly calibrated?

Do you have 'dirty mains' where you live, or a high level of EMI?

Does it run through a decent mains conditioner?

If you answered NO to the 1st question then you might not be able to tell a difference anyways

If you answered YES to the 2nd question (or 'dont know') then its very possible that the tvs struggling to produce a decent enough picture as it is and so again you wouldnt be able to tell a difference

If you answered NO to the 3rd question then its the same answer as above
so now you need to have russ andrews gear , just to be able to test hdmi cables ?? codswalop.....
 

aliEnRIK

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maxflinn:aliEnRIK:hammill:daveh75:maxflinn:

id say most hdmi cables are made in the same factories , branded differently ,slightly different external design , colours , different prices ...

many other things are...

Have you ever compared a freebie cable to 'higher end' cable!
Yes. I have four HDMI cables, two free (Humax, Oppo (although this is a "quality" cable) an Ixos and a 5* Chord. I spent a few hours trying all combinations desperately trying to justify the premium I paid for the Chord, but I could not see (on a 5090) or hear any difference whatsoever.

Is the 5090 properly calibrated?

Do you have 'dirty mains' where you live, or a high level of EMI?

Does it run through a decent mains conditioner?

If you answered NO to the 1st question then you might not be able to tell a difference anyways

If you answered YES to the 2nd question (or 'dont know') then its very possible that the tvs struggling to produce a decent enough picture as it is and so again you wouldnt be able to tell a difference

If you answered NO to the 3rd question then its the same answer as above

so now you need to have russ andrews gear , just to be able to test hdmi cables ?? codswalop.....

If that was true then people wouldnt use EMI suppression on sports cars, BT wouldnt use it on their lines, hospitals wouldnt use them etc etc etc

I never said you 'needed' RA gear. Im simply saying that if any of the above answers are called into play then its highly possible that changing hdmi cables wont make the slightest difference (Unless of course one was faulty)

Ive had first hand experience with A500s (Slightly better than the 5090s), and can tell you now that with the wrong calibration settings they look rubbish

Ive also had first hand experience with 42" pioneers and know for a fact that mine looked far better through a mains conditioner and changing the mains cable for something half decent

You saying "codswalop" really doesnt help your case whatsoever mind
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