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Home Theatre HDMI CABLE, Cheap & expensive same quality?

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timothyy
post Apr 23 2007, 05:18 PM

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Do you really need shielding for HDMI?
empire23
post Apr 23 2007, 06:06 PM

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QUOTE(timothyy @ Apr 23 2007, 05:18 PM)
Do you really need shielding for HDMI?
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IIRC they only specify it for longer ranges and the connectors. Although i'd like to make the point that it is the problem of the signalling itself rather than the evironmentals that make up the bulk of the transmission issue.
TSpiscesguy
post Apr 24 2007, 05:49 AM

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Since HDMI is a digital cable, 1m and 100m cable will have no impact in quality? rclxub.gif
empire23
post Apr 24 2007, 06:16 AM

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QUOTE(piscesguy @ Apr 24 2007, 05:49 AM)
Since HDMI is a digital cable, 1m and 100m cable will have no impact in quality? rclxub.gif
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As long as the voltage level remain readable. The simplest answer is NO.
sunauto
post Apr 24 2007, 11:08 AM

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There's a limit actually, branded HDMI cables from QED and Wireworld will cap its length to 15 metres. If you're running 1080P signals, it's note advisable to use a lenghty HDMI cable and besides, why do you need 100m for? It's not that you'll put your player downstairs and your HDTV panel upstairs. hmm.gif

I guess for normal 1m is more than enough and for projectors, I think 5m to 10m will be more than enough. HDMI cables are just like speakers cables, the shorter, the better.

QUOTE(piscesguy @ Apr 24 2007, 05:49 AM)
Since HDMI is a digital cable, 1m and 100m cable will have no impact in quality? rclxub.gif
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timothyy
post Apr 24 2007, 11:35 AM

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QUOTE(sunauto @ Apr 24 2007, 11:08 AM)
There's a limit actually, branded HDMI cables from QED and Wireworld will cap its length to 15 metres. If you're running 1080P signals, it's note advisable to use a lenghty HDMI cable and besides, why do you need 100m for? It's not that you'll put your player downstairs and your HDTV panel upstairs.  hmm.gif

I guess for normal 1m is more than enough and for projectors, I think 5m to 10m will be more than enough. HDMI cables are just like speakers cables, the shorter, the better.
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May be he is working in the hotel line leh?
Anyway, a lot of engineering calculation on cable length, resistance hve to be involved before any of us dare to comment when the cable is too long.

But for basic home use, don't think we will have problem.

But your question has been answered.<-- That is, nope-Quality of HDMI cable does not affect the image quality.
Ngto
post Apr 24 2007, 01:39 PM

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QUOTE(htkaki @ Apr 22 2007, 10:30 PM)
If u guys want, I sell to u all at RM30/pc. 1 metre long. Any taker?
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Already bought last month. Too bad for me you didn't offer earlier.


Added on April 24, 2007, 1:43 pm
QUOTE(piscesguy @ Apr 23 2007, 01:38 PM)
R u now saying that cheap and expensive cables DO MAKE a difference in picture quality? brows.gif
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Those with shielding are just marketing gimmick, to justify charging more. HDMI not affected by interference so won't make a diff cheap or expensive.


Added on April 24, 2007, 1:47 pm
QUOTE(timothyy @ Apr 23 2007, 04:12 PM)
I bought a cheap S Video cable... RM55 for 20m.

Hmmm... I am having problem with it as the wiring inside is not so good... picture come out sometime and sometime no.

So, getting a good cables might just reassure you that it won't spoil easily.
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You are off topic lah biggrin.gif . S-Video is analog cable where signal strength and quality plays an important part in picture quality unlike HDMI.


Added on April 24, 2007, 1:50 pm
QUOTE(piscesguy @ Apr 24 2007, 05:49 AM)
Since HDMI is a digital cable, 1m and 100m cable will have no impact in quality? rclxub.gif
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As long as the 100m one can transmit the signal strong enough over the long distance to be detected by the receiver the PQ will be the same.

This post has been edited by Ngto: Apr 24 2007, 01:55 PM
timothyy
post Apr 24 2007, 01:59 PM

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QUOTE(Ngto @ Apr 24 2007, 01:39 PM)
Already bought last month. Too bad for me you didn't offer earlier.


Added on April 24, 2007, 1:43 pm
Those with shielding are just marketing gimmick, to justify charging more. HDMI not affected by interference so won't make a diff cheap or expensive.


Added on April 24, 2007, 1:47 pm

You are off topic lah  biggrin.gif . S-Video is analog cable where signal strength and quality plays an important part in picture quality unlike HDMI.

Added on April 24, 2007, 1:50 pm

As long as the 100m one can transmit the signal strong enough over the long distance to be detected by the receiver the PQ will be the same.
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Aiyo... u got me wrong la... I am referring to cheap vs expensive cables conection quality. The S Video is just an example that I got what I paid for...

Ngto
post Apr 24 2007, 02:14 PM

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QUOTE(timothyy @ Apr 24 2007, 01:59 PM)
Aiyo... u got me wrong la... I am referring to cheap vs expensive cables conection quality. The S Video is just an example that I got what I paid for...
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Not sure what you meant by connection quality.

Anyway using analog to compare with digital cable physical quality is not appropriate.

Since analog cable PQ is dependent very much on the physical quality of the cable itself, even a slight degradation can make a diff in PQ.

On the other hand digital cable will only lose signal with a very poor quality cable at a minimum threshold point . The signal just won't get detected and there will be no picture.

Anything above the minimum quality, whether it's a very good cable or just a so-so cable will give you the exact same picture quality.

So if you buy a HDMI cable don't buy one which is so cheap and poor that no signal can be detected.

This post has been edited by Ngto: Apr 24 2007, 02:16 PM
htkaki
post Apr 24 2007, 04:27 PM

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QUOTE(Red Maniac @ Apr 23 2007, 02:10 PM)
I want... I want...  Can COD ah???
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Can. Just PM me smile.gif

TSpiscesguy
post Apr 25 2007, 06:47 AM

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QUOTE(Ngto @ Apr 24 2007, 02:14 PM)
Not sure what you meant by connection quality.

Anyway using analog to compare with digital cable physical quality is not  appropriate.

Since analog cable PQ is dependent very much on the physical quality of the cable itself, even a slight degradation can make a diff in PQ.

On the other hand digital cable will only lose signal with a very poor quality cable at a minimum threshold point . The signal just won't get detected and there will be no picture.

Anything above the minimum quality, whether it's a very good cable or just a so-so cable will give you the exact same picture quality.

So if you buy a HDMI cable don't buy one which is so cheap and poor that no signal can be detected.
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Very well explained. rclxms.gif
bond
post Apr 25 2007, 07:48 AM

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QUOTE(piscesguy @ Apr 25 2007, 06:47 AM)
Very well explained. rclxms.gif
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Just bought a cheap no brand HDMI cable for RM40 and it is working fine. Found the cheapest branded is panasonic for RM89. Very tempting but i suspect the result is the same.
Ngto
post Apr 25 2007, 09:58 AM

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QUOTE(bond @ Apr 25 2007, 07:48 AM)
Just bought a cheap no brand HDMI cable for RM40 and it is working fine. Found the cheapest branded is panasonic for RM89. Very tempting but i suspect the result is the same.
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Let's put it this way. If the cable is not good quality and becomes defective (i.e losing signal etc.) after months, years or probably never, you can always buy another better one with the savings you have made with your current purchase. By that time even the branded ones will have come down sharply in price as more and more people become aware of the truth behind HDMI cables and PQ.
Red Maniac
post Apr 25 2007, 02:26 PM

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QUOTE(bond @ Apr 25 2007, 07:48 AM)
Just bought a cheap no brand HDMI cable for RM40 and it is working fine. Found the cheapest branded is panasonic for RM89. Very tempting but i suspect the result is the same.
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Mind sharing with us where you get the cable.
Ngto
post Apr 25 2007, 09:21 PM

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QUOTE(Red Maniac @ Apr 25 2007, 02:26 PM)
Mind sharing with us where you get the cable.
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Read the earlier posts. 'Htaki' is selling for only RM30/- each.
sunauto
post Apr 25 2007, 09:43 PM

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QUOTE(Ngto @ Apr 24 2007, 01:39 PM)
Already bought last month. Too bad for me you didn't offer earlier.


Added on April 24, 2007, 1:43 pm
Those with shielding are just marketing gimmick, to justify charging more. HDMI not affected by interference so won't make a diff cheap or expensive.


Added on April 24, 2007, 1:47 pm

You are off topic lah  biggrin.gif . S-Video is analog cable where signal strength and quality plays an important part in picture quality unlike HDMI.


Added on April 24, 2007, 1:50 pm

As long as the 100m one can transmit the signal strong enough over the long distance to be detected by the receiver the PQ will be the same.
*
It depends on how you view such cables, to me, whether the signal is analog or digital, a good cable will always give you good results, it's not a marketing gimmick as you claimed even though, you'll say it is madness to spend thousands on a good cable. If you're talking about HDMI cable, try bringing yours to CMY Sungei Wang and try their QED HDMI-P cable for a start, that's around RM450 (can still nego lah), try to compare the quality on their plasma. They're willing to demo it to you. That day I was asking them about their Siltech SPX-20 (around RM900) and QED Conduit (around RM400 plus) power cords, they played Eagle's Hotel California song and tested these two cables and also the stock power cord that came with the Cambridge Audio's cd player. The openess, mids and highs can be immediately felt on the pricier Siltech power cord, QED did improve on the sound but not as much as the latter. I do believe that good cables can give an extra boost to the picture and sound quality but some may argue that with the money, you can either get a better display or player. Well, that's up to you to judge actually.
bond
post Apr 26 2007, 12:53 AM

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QUOTE(Red Maniac @ Apr 25 2007, 02:26 PM)
Mind sharing with us where you get the cable.
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I got it from SS2 Legend... but Tong kong is selling pana cable for 89
Jack28HT
post Apr 26 2007, 02:02 AM

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Here is something regarding HDMI cables. It doesn't seem to be as simple as 0 or 1 only because it carries differential signals in cable pairs. Anyone got a chance verify it for 1080P signal ?

HDMI Part 8 - Cables for 1.3
Ngto
post Apr 26 2007, 11:04 AM

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QUOTE(Jack28HT @ Apr 26 2007, 02:02 AM)
Here is something regarding HDMI cables. It doesn't seem to be as simple as 0 or 1 only because it carries differential signals in cable pairs. Anyone got a chance verify it for 1080P signal ?

HDMI Part 8 - Cables for 1.3
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That's a different specification (1.3) you are comparing altogether. Different specs require different cable requirements due to the higher transmission speeds. When 1.3 becomes mainstream in the future for more advanced HDMI features than it will require higher quality cables because of the higher speeds. The LCD-TV must also be HDMI 1.3 ready to support the new specs.

In the meantime Current mainstream specs are only 1.0-1.2 and our discussions are based on that, so can't compare with 1.3 that way.

This post has been edited by Ngto: Apr 26 2007, 11:07 AM
Red Maniac
post Apr 26 2007, 11:17 AM

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QUOTE(bond @ Apr 26 2007, 12:53 AM)
I got it from SS2 Legend... but Tong kong is selling pana cable for 89
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Thanks... can you get 720p and 1080i with this cable? Is the plug gold plated?

I've tried hdmi cable from Roger ($100) and Supra (~$400). Can't really differentiate the differences in quality with my AV setup at home. That's why I opt for a cheap cable.

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