QUOTE(neb @ Feb 23 2012, 01:57 PM)
did not see version number printed on the cable, is that important?
if the cable can work at 1080p, then it is high speed cable
Well, my take is this. Usually those affordable hdmi cables will cut corners to save cost so their margin is more (this is the norm right?

) and while those audiophile HDMI will usually give you the best possible quality as required by HDMI corp standard.
Look at this one :
This is where the difference between a good quality and a poor quality HDMI cable. Then the purity of the cable material and shielding plays certain part too. However, by meant good quality doesnt meant it has to be expensive as well neither is expensive is always good. I'll always go for the certified HDMI adopters/manufacturers products when it comes to HDMI cables to be safe. And the longer they're in the business, the better it's as they're not found to be cutting corner when being given the license to manufacture the HDMI cables for OEM/mass markets.
The list can be found here :
http://www.hdmi.org/learningcenter/adopters_founders.aspxSurprisingly most of the audiophile brands arent listed as the manufacturers/adopters which means they're OEM from one of these listed manufacturers instead
I personally ripped apart a few HDMI cables from cheap to decent audiophile brands due to malfunctioning and were surprised at each post mortem investigation and I'll am now a firm believer in good quality HDMI cables at very affordable price

Added on February 23, 2012, 3:53 pmQUOTE(neb @ Feb 23 2012, 01:57 PM)
did not see version number printed on the cable, is that important?
if the cable can work at 1080p, then it is high speed cable
Nope, you're not correct. High speed term is used in the v1.4 hdmi cable which is categorised into a few category.
Read it here :
http://www.hdmi.org/consumer/buying_guide.aspxIf it's not stated, usually it's v1.3 unless it's stated.
Added on February 23, 2012, 3:55 pmQUOTE(ZaX17 @ Feb 21 2012, 11:07 PM)
The measurement of the digital signal's quality which is '1' (high voltage) and '0' (low voltage) are known as Signal Integrity. In the digital world, the fundamental of digital signals are actually still analog signal, and in the real case, the '1' and '0' will not be square wave as we see and read in textbook (the higher the frequency, the uglier the signal will be).
First of all, the digital signal is required to swing to correct voltage level before the requirement time (setup time) and hold long enough (hold time) for the receiver to capture/clock the input signal. When in high speed signal, sometimes the output driver is not strong enough to swing the signal in time to meet the correct input voltage. Furthermore, the setup time and hold time are effected by the resistance and capacitance of the cable or connector. This will cause the receiver to interpret wrong inputs.
HDMI protocol is 10GB/s speed with 3 differential pair signals, so each differential pair signal is transferring at 3GB/s speed. They are very high speed where the signal only have 0.3ns to swing from high to low or low to high (at the speed of light, it can only travel 0.1m in 0.3ns).
I do really think this sound very technical. Do you guys still want me to continue?
This is eye opener..pls..continue..we want to know more
This post has been edited by Will.i.am.Smith: Feb 23 2012, 03:55 PM