Premium certified HDMI cables

Posted by: TOBYJUG on 26 July 2017

Seems all the big branded cable manufacturers have not brought out any Premium certified HDMI cables yet.  Although plenty are available online and in the consumer stores.

 Any one tried one ?  

Most are cheap compared to lower spec branded.   So for 20 I've ordered one.  Shall see if it'll better what's used at the moment.

Posted on: 26 July 2017 by Mike-B

My AV mad buddy has been twittering on about them,  good for 4K it seems,  not needed for lower res.

Posted on: 26 July 2017 by Finkfan

I got a couple from Amazon. I needed some new hdmi leads for extra sky and bluray boxes. Picture is fine but not as good as my Chord silver plus hdmi cables. Like Mike B says, probably not needed for 1080p. 

Posted on: 26 July 2017 by tonym

HDMI cables either work, or they don't & you get picture dropouts. If you've a 4K display then you almost certainly need a Premium Certified lead, but it won't improve picure quality.

Posted on: 26 July 2017 by Finkfan

I would have agreed with you some time ago Tony. But then I tried the chord silver plus and there is a definite improvement in colour. Can't say I noticed anything else though. 

Posted on: 26 July 2017 by TOBYJUG

Yes I've got a big one and 4K !!  Might upgrade the Skybox to their UHD package one day in the not too distant future. 

Probably not until the big brands come out of R@D will any one spend good money on something that will obviously give better results on picture quality.

Posted on: 26 July 2017 by IanG

I recently bought a couple of Atlas 5m HDMI cables for around 150 each. I was assured they would work with 4K HDR content.....they didn't work with Sky SDR 4K broadcasts let alone 4K blu ray. After sending back two TV sets to John Lewis which I assumed to be faulty, my suspicions were raised when the third set was also faulty and I started looking elsewhere.

Fortuitously after cancelling calibration of the set twice and discussing the problem with the calibrator, he recommended some 15 no name cables and guess what, not a single problem since.

I appreciate the length of my cables may have been a factor in all this but, I for one won't be investing heavily in fancy, expensive HDMI cables again. I was lucky enough to get a refund on the expensive ones. The calibrator assured me there was no merit in the expensive ones.

Posted on: 26 July 2017 by TOBYJUG

Just in case others are confused as much as I was, this is the legacy labelling.

http://www.cdrinfo.com/images/uploaded/HDMI_logos_New.jpg

The new labelling for Premium certified is.

https://betanews.com/wp-content/uploads/2015/10/HDMI_tag_explanation-600x341.jpg 

Posted on: 27 July 2017 by tonym

The only thing I will say - I've two 4K sources, an Oppo 203 disc player & an Amazon FIRE TV, which connect to a 4K Denon sound processor and thence to the display. I've a motley assortment of HDMI leads, some of which work fine, but a few cause picture breakup. I've two Amazon cheapy cables that are identical and appear to be very well constructed but one causes dropouts, the other doesn't. So I have subsequently bought Premium Certified leads, all of which work fine, although there is absolutely no difference in picture or sound quality with any of the HDMI leads.

Posted on: 27 July 2017 by Mike-B

Reading up on www/press on this & copy/paste some points:    the Premium HDMI Cable Certification Program is the HDMI industry's means of identifying cables that have been tested to perform at a specific level that will carry 4K content.    Any cable rated as 'high speed' should pass 4K content provided it is indeed a true 'High Speed HDMI cable'.      HDMI Licensing acknowledges the issue of some "high speed" cable not being up to the task of actually handling the full HDMI 2.0 bandwidth, saying:  "Although many current High Speed HDMI Cables in the market will perform as originally expected (and support 18Gbps), some unanticipated technical characteristics of some compliant High Speed HDMI Cables that affect performance at higher speeds have been found. These cables are compliant with the Category 2 HDMI Cable requirements and perform successfully at 10.2Gbps, but may fail at 18 Gbps."   ........  hence, HDMI Licensing introduced a third testing tier in addition to "Category 1" (Standard) and "Category 2" (High Speed): the "Premium HDMI Cable."

If a cable is failing to carry the content, its seen as    "Sparkles": individual dropped-out pixels, "Line dropouts" where a whole line of video, or the rightward portion, drops out, "Intermittently flashing or jumping picture" indicating that so much picture data is being lost that the display is losing sync, & finally no picture.     It does not involve blacker blacks & more verdant greens. 

Finally I took my Mark Grant G1080 HDMI which is claimed (& tested) for 1080p around to my AV buddy to run on his 4K setup & it worked just fine.

Posted on: 29 July 2017 by TOBYJUG

So yes, just connected up the new HDMI cable. Compared to my other one blacks are definitely more blacker, depths are more deeper, colour seems more natural in light, natural light seems more natural,   Although motion and small detail definition seems not so good - perhaps it needs to burn in more.

Posted on: 29 July 2017 by Finkfan

Who's cables did you get [@mention:31133010812284286]? 

Posted on: 29 July 2017 by Mike-B

Per my previous post I took my BRP HDMI to my AV buddy's house to run on his 4K setup.    I had forgotten it was 3m long & it only needs 1m.    So to hell with the expence, I've lashed out 8 +P&P on a 1m cable.  I'm not too bothered with AV just so long as it works but I did look around at cable specs & the claimed performance & selected on that.   The 'Premium Certified' cables must conform to HDMI v2.01b with 18Gb/s bandwidth.  AQ have one that they claim goes up to 27Gb/s, but the cable itself is a bit chunky & I picked up on a customer comment that it was not easy to bend.   Instead I went with a cable that has 21Gb/s,  ordered last evening,  its shipped already & ETA is tomorrow (sunday)  amazing !!!

Posted on: 29 July 2017 by TOBYJUG
Finkfan posted:

Who's cables did you get [@mention:31133010812284286]? 

https://images-eu.ssl-images-amazon.com/images/I/81qne4w-rLL._SL1500_.jpg

The jury is still out, maybe next week i will pop back my old one !

 

Posted on: 29 July 2017 by Simon-in-Suffolk

The specs are confusing as the HDMI specs are separate from the HDMI cable specs... it feels like a typical proprietary specification to me.

There appear to be four cable specs currently and at least the first three, appear the same construction of four twisted shielded pairs of cable, with different cross talk performance - kind of like Ethernet cable.

  • Standard (with Ethernet and automotive variants); suitable up to 1080i / 720p
  • High Speed (with Ethernet variant); suitable up to 1080p, 4K @ 30 Hz, 'deep colour' and 3D
  • Premium High Speed (with Ethernet variant); suitable upto 4K @ 60 Hz, Rec 2020 UHD, and HDR [18 Gbps bandwidth]
  • 48G; suitable upto 4K, 5K, 8K and 10K @120 Hz [48 Gbps bandwidth]

 

clearly the 'certification' aspect is largely a marketing quality control aspect, probably necessary as the specification is proprietary and is consumer industry led... but a quality supplier conforming to the cable specifications doesn't need to necessarily purchase the 'certification'

If you are 'seeing' differences with blacks and colours between cables it suggests to me you have a RFI issue.. possibly caused by the cable itself

Posted on: 29 July 2017 by Mike-B

Its a pity the ethernet cable industry doesn't have some form of conformance 'certification' .   All claim to be CAT whatever number but very very few actually include a conformance test with the cable to prove it.  Blue Jeans & MeiCord are the only ones I'm aware of.  We (some people) pay a lot of money for ethernet cable believing the big CAT numbers are better for audio, but thats another subject.   My question is do they actually perform to the various category spec's ??  are we sure ???  I've read tests of CAT7 only just passing CAT6A some even worse.   Thankfully,  unlike HDMI where 18Gb/s is actually needed for 4K,  we only need 100Mb/s for audio & even CAT5e with its 1000Mb/s leaves us with plenty of headroom. 

Posted on: 29 July 2017 by Finkfan

It looks like HDMI 2.1 is just around the corner. 

Posted on: 29 July 2017 by Simon-in-Suffolk

It's here already, and the 48G has been created to meet its new protocol bandwidths.

Mike, I guess certification for Ethernet cables isn't used because it's not really needed or deemed useful in the majority of cases . Cat5e as you say with 4 pairs is good for 1Gbps at 100 metres. In the commercial world if a product is specified to 5e it needs to be as with fibre classifications and of course ultimate performance depends on environmental matters as well as how the cable is laid. Its not some sort of consumer marketing gimmick... but of course some Ethernet cables have entered the glitzy sweety shop of consumer bling where  anything goes. If you need to test Ethernet cables specifically then manufacturers like Fluke make suitable testers


 

Posted on: 29 July 2017 by Mike-B

Agreed Simon, I'm aware of most of the Ethernet testing & admit my post was a bit of a teaser.   My own cables come with a Fluke test cert. & despite knowing it is OTT for  audio streaming, it is reassuring to know I've bought what I paid for.  As for me buying a Fluke cable conformance tester, I might just get those SMC40A's first

Posted on: 30 July 2017 by Mike-B
Mike-B posted:

................,I've lashed out 8 +P&P on a 1m cable.  

'Premium Certified' HDMI v2.01b & with 21Gb/s bandwidth.   Ordered late Friday pm arrived Sunday pm.     Nice tight plugs & nice to not need to coil up 2m of excess cable length.   It works just fine,  nothing else to say,  it's now waiting for a new 4K disc player (make/model yet to be decided)

Posted on: 31 July 2017 by TOBYJUG

After a few days running in and a little tweaking over some picture settings Emmerdale has never looked so good.  

Motion and detail is now motoring on full cylinders. Glad now that I never went ahead with purchasing that expensive Nordost Heimdall HDMI high speed cable.

Although no doubt there will be a mk2 Premium Certified, or even 2.1 version from Nordost and many others to tempt in the future.

Posted on: 01 August 2017 by Foot tapper

Hi Mike-B,
Are you able to say where you bought this sensible cable?  I am about to buy a 4k TV and really don't fancy the idea of shelling out 300 or so for an AQ Vodka (or similar) posh HDMI cable, when a 8 or 10 one will be perfectly fine.

Thank you in anticipation, FT

Posted on: 14 August 2017 by Finkfan

[@mention:31133010812284286] have you had chance to put your old hdmi cable back in and compare to your new Goobay premium one? 

Posted on: 14 August 2017 by Mike-B
Foot tapper posted:

Hi Mike-B,
Are you able to say where you bought this sensible cable?  I am about to buy a 4k TV and really don't fancy the idea of shelling out 300 or so for an AQ Vodka (or similar) posh HDMI cable, when a 8 or 10 one will be perfectly fine.

Thank you in anticipation, FT

Sorry Foot Tapper I missed your post,  I don't look around on this section much.   Hope it's not too late.        Brand is OMARS I bought it from the big river.   7.99 for 3 feet  (yes it is "feet") + p&p

Posted on: 15 August 2017 by TOBYJUG
Finkfan posted:

[@mention:31133010812284286] have you had chance to put your old hdmi cable back in and compare to your new Goobay premium one? 

The old one - chord Company C view - hasn't gone back in. The Goobay premium has trumped it in all areas.    Almost afraid to touch it in case I upset the magical pixie dust that it must surely contain. But, yes I'm sure it's the premium' side of it rather than the particular brand.

Posted on: 15 August 2017 by Finkfan

The hdmi cable I purchased has since been moved to other tvs and boxes so I'm after another 2 for my office. I think I'll give the goobay cables a go. 

Has anyone tried a thx certified hdmi? Are they premium cables?