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HDMI cables buying guide

What you need to know about the evolving standard for high-definition audio/video connections


Steve Kindig

Steve Kindig has been an electronics enthusiast for over 30 years. He has written extensively about home and car A/V gear for Crutchfield since 1985. Steve is also a volunteer DJ at community radio station WTJU, where he is a regular host of the American folk show "Atlantic Weekly," as well as the world music program "Radio Tropicale."

More from Steve Kindig

AudioQuest Pearl HDMI Cable


  • HDMI cables connect todays TVs with A/V receivers, cable boxes, media players, and Blu-ray players. They send audio and video over same cable, simplifying your hookups.
  • Choosing the right HDMI cables can be tricky. Older cables don't support the latest features. 
  • The latest HDMI 2.0 cables support 4K TV and HDR (High Dynamic Range).

HDMI (High-Definition Multimedia Interface) delivers crystal-clear digital video and audio via a single cable, dramatically simplifying home theater cabling. But choosing the right HDMI cable can be tricky.

In this article, we'll explain what the differences are among the different versions of HDMI, including the most recent one: HDMI 2.0a. You’ll learn what kind of HDMI cables you need for a 4K TV. And finally, we'll look at some real-world HDMI hookup issues along with solutions and workarounds.

HDMI: The "king" of high-quality connections

HDMI's pure-digital interface is the best way to connect high-resolution components — Blu-ray players, the PlayStation® 3 and Xbox 360™ game consoles, and HD-capable satellite and cable TV set-top boxes — to HDMI-equipped high-definition TVs and home theater receivers.

These days, HDMI is often the only way to make an HD-capable connection. Although most TVs still have a component input, it has virtually disappeared on Blu-ray players. Equipment manufacturers have been required to limit the resolution of component video outputs on HD players and boxes to standard-definition (480i). And for a few years now disc makers have have the option of inserting a "digital flag" into a Blu-ray disc that will limit component video resolution to 480i. So if you like high-definition pictures — and who doesn't? — you'll definitely want HDMI connections on your gear.

HDMI ouput

HDMI is the connection of choice for carrying HD and 4K Ultra HD video signals. It can also support up to eight channels of high-resolution audio.

Single-cable convenience, plus so much more

The ability to send high-definition video and multichannel audio over a single cable is unique to HDMI, but this interface offers other big advantages.

  • Superb picture and sound quality: HDMI connections keep audio and video signals in the digital language of 1s and 0s, eliminating the compromised picture and sound quality caused by digital-to-analog conversions and re-conversions. HDMI supports video resolutions up to 1080p, which is key for 1080p-capable HDTVs and Blu-ray players. (A few TVs will accept 1080p signals via component video, which is useful for gamers since both the PS3 and Xbox 360 can output 1080p over component video.) And HDMI's sound capability now supports up to 8 channels of super-high-quality 24-bit 192kHz audio.
  • Ability to carry 3D video: HDMI is the only connection that can carry 3D video signals from components like a 3D Blu-ray player to your 3D TV.
  • More than just audio and video: A standard HDMI connector has 19 pins, which carry not only audio and video data, but also 2-way control and identification information, and even low-voltage power. HDMI cables labeled "1.4" or newer can also provide an Internet connection between compatible devices.
  • Industrial-strength copy protection: This probably seems like more of a benefit for content owners like movie studios than for consumers, but it directly affects the quantity and quality of what we can watch — now, and in the coming years. HDMI's wide adoption is due in large part to Hollywood's demands for ever-stronger copy protection measures to prevent piracy. HDCP (High-bandwidth Digital Content Protection) is present on virtually all HDMI-equipped devices even though it's not officially part of the HDMI spec. Without HDCP, both the quantity and quality of high-def content available to consumers would almost certainly be more limited than it is.

    However, HDCP also has a downside. One of its main jobs is to "authenticate" the connection between two components via a "digital handshake," and problems with this handshake process can result in the loss or degradation of picture and sound.

Quick tips for choosing HDMI cables

Some components include an HDMI cable in the box, but most don't, so plan on buying one to connect your gear for the best picture and sound. You won't see dramatic differences in picture quality among HDMI cables. Unlike analog video transmission, which can display varying degrees of picture quality, digital video transmission typically delivers a clean, clear picture or no picture at all, although we've occasionally seen picture "sparkles" due to a less-than-flawless HDMI connection.

You'll still want to choose a high-quality HDMI cable, especially for longer lengths or in-wall installations. Different cables use different materials and construction techniques, and some are rated by the manufacturer to maintain maximum signal quality over longer cable lengths. Some users have encountered interoperability issues when making HDMI connections, but these are almost never the fault of the cable itself.

back panel illustration

The TV in the illustration above has four HDMI inputs: three on its back panel and one on the side. Most new TVs have an HDMI input labeled MHL. That input opens up some intriguing possibilities for users of MHL-compatible smartphones or tablets, like Samsung’s Galaxy models. Connect your Galaxy to an MHL-compatible HDMI input, and while it charges you can play your phone’s apps, games, music, videos, and photos on your TV screen. Use your TV remote to navigate and control the phone’s content.

An evolving standard

HDMI is the accepted universal connector for digital home entertainment. The standard continues to evolve to meet the needs of high-performance home theater equipment. All versions of HDMI are backward compatible with previous versions, as well as with DVI with the use of an adapter (however, a DVI connection passes video only, not audio). Part of the built-in intelligence of HDMI enables it to automatically send the highest quality video and audio formats that are mutually supported. In other words, if you connect two devices, one with HDMI version 1.3 and the other with 1.4, the system will be limited to the 1.3 feature set.

Although you'll often see the HDMI version listed as part of a component's specifications, it's probably best not to pay much attention to it. For specific details about a particular component's audio and video capabilities, you're better off focusing on the component's feature list. A product's HDMI version by itself doesn't mean that all the latest features have been implemented; it does not guarantee a particular feature set. The reason is that the capabilities listed for each version of HDMI are optional, not mandatory. It's up to each manufacturer to decide which HDMI features to build into its gear.

Do I need to worry about compatibility between HDMI versions?
Only if you're working with components that use the latest HDMI version — currently 2.0a — and want to take advantage of certain features that are new to the latest spec. However, each new HDMI version is backwards compatible with older versions, so your older and newer HDMI-equipped components can generally still work together. So even if you use a 1.2 cable on 1.4 gear, or a 1.4 cable on 1.1 gear, you'll still get a great high-def picture and sound.

HDMI versions

So what are the differences between different HDMI versions? Take a look at our summary of HDMI's evolution below:

HDMI 1.0: The original spec called for a single-cable digital audio/video connection with 165MHz bandwidth and a maximum bitrate of 4.9Gbps (enough for 1080p video). Two-channel audio only. Released December, 2002.

HDMI 1.1: Added multichannnel audio support for DVD-Audio (up to 5.1 channels). Released May, 2004.

HDMI 1.2: Added support for multichannel one-bit audio formats like SACD (Super Audio CD). Included support for HDMI connectors on personal computers. Required displays with HDMI 1.2 or later to support future low-voltage devices. Released August, 2005.

HDMI 1.2a: Fully specified the Consumer Electronic Control (CEC) features and command sets for remote control functions. Required cable manufacturers to submit longer cable lengths for additional testing for spec compliance. For a device to pass 1.2a testing, all of its HDMI connectors required inspection and approval by HDMI Licensing, LLC. Released December, 2005.

HDMI 1.3: Increased bandwidth to 340MHz and the maximum bitrate to 10.2 Gbps (plenty for 3D video). Adopted the "Deep Color" standard, which supports 10-bit, 12-bit, and 16-bit color for over one billion possible colors — previous versions were limited to 8-bit. (Note: Because color information is based on three primary colors — red, green and blue — you'll sometimes see 1.3's enhanced color depth described as 30-bit, 36-bit, and 48-bit.) Added support for the "xvYCC" extended-gamut color space standard (also known as x.v.Color), which supports 1.8 times as many colors as existing HDTV signals. (No commercially available video content currently uses Deep Color or x.v.Color.) Added ability to output new lossless compressed digital audio formats (Dolby® TrueHD and DTS-HD Master Audio™) for decoding by a compatible A/V receiver. Incorporated automatic "lip sync" control for perfect audio/video timing (sometimes an issue when audio is sent to a surround receiver or processor and video is delivered directly to the display). Also made available a new mini-connector for use with smaller devices such as digital cameras and camcorders. Released June, 2006.

The 1.3 spec was updated to 1.3a, followed by 1.3b. However, for consumers, there is no difference between versions 1.3, 1.3a or 1.3b. These are minor revisions that relate to manufacturing and testing issues and do not affect features or functionality.


Considering upgrading to a 4K TV? Any good-quality HDMI cable labeled "high-speed" should be able to carry 4K video signals.. (AudioQuest Chocolate pictured above)

HDMI 1.4: Added Ethernet capability. If one HDMI 1.4 device is connected to your home network, it can share that connection with other Internet-ready HDMI 1.4 devices via a 1.4 HDMI cable. Note: As of 12/11/15 we are unaware of any components that support Ethernet over HDMI. Also included the capability to send audio from your TV's tuner back to your home theater receiver. HDMI inputs with this ARC (Audio Return Channel) capability are ideal for folks who get their high-def programs over the air using an antenna and want to be able to enjoy surround sound with those TV shows. Released May, 2009.

TV input panel with HDMI input labeled ARC

A TV's regular HDMI inputs accept video and audio signals from sources like a Blu-ray player. If your TV has an HDMI input with ARC (Audio Return Channel), it can also pipe sound from the TV's built-in tuner and web apps back to an ARC-compatible A/V receiver or sound bar over a single HDMI cable. That way, you don't have to connect a separate optical audio cable for sound.

HDMI 2.0: Increased maximum bitrate to 18 Gbps to support new formats such as Ultra High Definition 4K video (3840 x 2160 pixels) at up to 60 frames per second. (The 1.4 spec also supports 4K video but only up to 30 frames per second.) HDMI 2.0 also supports up to 32 audio channels, as well as dynamic auto lip-sync, plus new extensions to the CEC control set. Released September, 2013.

HDMI 2.0a: Added support for HDR (High Dynamic Range) video display. HDR provides enhanced picture quality by enabling greater detail for both the dark and bright parts of an image. The HDR information is encoded as additional metadata in HDR content such as streamed 4K video from Netflix®, or Ultra HD Blu-ray discs. HDMI 2.0a enables devices to transmit/receive this metadata. Released April, 2015.

Will I need a special "4K-compatible" HDMI cable?

No, you won't need to upgrade to "4K-compatible" HDMI cables. Current HDMI cables that are labeled "high speed" should be able to handle the increased bandwidth of 4K video signals.

HDMI connection issues, solutions and workarounds

Different HDMI versions may cause some interoperability issues — for example, you generally won't be able to get HDMI 1.4 features with non-1.4 gear and cables. See our HDMI 1.4 questions below for more details.

Some problems are also caused by a manufacturer's improper or incomplete implementation of the technology. Some incompatibilities in the digital "handshake" of the HDCP copy-protection code still exist between HDMI-connected components, especially when routed through an HDMI-equipped home theater receiver. Whenever problems like these are discovered, the HDMI standards group contacts the manufacturer and requires that the issue be resolved. In some cases, products have been recalled.

Beyond the initial handshake, there are other possibilities for miscommunication between components. At the beginning of the article, I mentioned that HDMI supports two-way communication between a video source and a TV. Part of that digital conversation is known as "EDID" (Extended Display Identification Data), which describes the TV's capabilities to the source component. EDID info typically includes the manufacturer name, product type, screen resolution, and color depth. Thanks to EDID, two devices can not only talk to each other, they'll actually know whom they're talking to. And that makes auto-configuration possible, which simplifies your setup process.

Keeping all that in mind, here are some of the most common HDMI connectivity issues we've heard about from customers, along with possible solutions or workarounds:

Running HDMI over long distances

We get quite a few calls about long HDMI runs for homes or commercial A/V systems. One of the newest and best-performing solutions is Celerity Technologies' fiber optic HDMI cables. These high-tech cables deliver outstanding picture and sound quality, including full 4K and 3D content, at distances up to 1,000 feet — far beyond the reach of conventional copper-based cables. Celerity cables work by converting electrical HDMI data into optical signals inside the fiber optic HDMI connectors. The signals are converted back to an electrical HDMI data stream at the connection to your TV or projector. Since the cable is fiber optic, there's no signal loss, even over long runs, and it's immune to interference from appliances, wireless devices, and computers.

Getting HDMI 1.4 features

Can't get Audio Return Channel from TV to receiver 
Make sure your TV and home theater receiver are both HDMI 1.4 components, and that they both support the Audio Return Channel. This may surprise you, but most TVs with 1.4-rated HDMI inputs only support Audio Return Channel on one of those inputs. Next, be sure you're using a 1.3 or 1.4 HDMI cable. (It's confusing, but equipment that's 1.3 and below won't support new HDMI 1.4 features; however, HDMI 1.3 cables can support some of them, namely the audio return channel.)

HDMI and 3D TV

3D TV simulation

If you want to watch 3D TV, every component in your system needs to be capable of carrying 3D video signals, and they all need to be connected via HDMI.

When I try to play my 3D Blu-ray movie, my TV's screen goes blank 
The problem is likely that one of the components in your system doesn't support 3D video. For example, if you try to play a 3D Blu-ray movie on a TV that can't display 3D, the TV won't know what to do with the signal and the screen will be blank.

The same thing can happen if you're routing your 3D Blu-ray player's video signal through a non-3D home theater receiver. The receiver won't be able to pass 3D video on to your TV, resulting in an empty screen.

Many 3D Blu-ray players require you to choose between 3D and 2D viewing when you load a Blu-ray disc. If you choose 3D, the player switches to 3D mode, and you have a short amount of time to confirm your selection. If you don't confirm, the player assumes you might not be able to see the image, and reverts back to 2D.

When I try to watch a regular 2D movie, my 3D TV's screen goes blank
If your TV is set to display video in 3D only, it may not be able to accept a regular 2D signal. Go into your TV's display menus and select "Auto" (or something similar) &mdash that tells the TV to display any incoming signals, 2D or 3D, rather than only 3D.

Common HDMI "handshake" issues

No picture or sound using HDMI from DVD player to TV
Some video components come from the factory with the HDMI output set to "off." You can switch it to "on" via the player's setup menu, or sometimes by pressing the "HDMI" button on the component's front panel or remote.

No sound when using the HDTV's HDMI input
Most TVs lack built-in decoding for Dolby Digital and DTS surround sound, and can only play 2-channel audio. But many HDMI-equipped video components come from the factory set up to send multichannel audio. Usually, just changing the component's audio setting to "2-channel (PCM)" solves the problem.

No picture when connecting a cable box to an HDTV
This is usually the fault of the cable box, since some local cable providers may not have upgraded their customers' equipment with new firmware or new boxes to make them fully compliant and compatible with HDMI-equipped TVs and A/V receivers. Customers should report problems to their local cable providers. As with most HDMI-related connectivity issues, one effective workaround is to use component video connections and optical or coaxial digital audio connections.

No closed captions displayed when using HDMI connections
Unfortunately, the HDMI spec doesn't include any requirement for carrying closed captioning data. So, if you connect a video component like an HD cable or satellite receiver or DVD/Blu-ray player to your HDTV using HDMI, you won't see conventional closed captions. If you need to view closed captions from your cable or satellite box, use a component video connection — the closed captions will pass through and you'll still enjoy a high-def picture.

A related issue is that many DVDs and Blu-ray discs simply aren't encoded with closed captioning data. However, most discs are encoded with subtitles, which are similar to closed captions, and subtitles are compatible with HDMI. In fact, a growing number of content providers are using a particular type of subtitling called "Subtitling for Deaf and Hard of Hearing," which is optimized for people with hearing disabilities. While not all discs include subtitles, virtually all DVD and Blu-ray players are capable of decoding subtitles if they're present.

Can't get multichannel audio with an A/V receiver connected between the video source and an HDTV
We've mentioned HDMI's intelligent two-way communication between components, but sometimes it actually contributes to hookup problems. Normally, the display tells the source device about its video and audio capabilities. Virtually all TVs are limited to 2-channel audio playback. Since many A/V receivers employ a "repeater" type of HDMI switch, the receiver simply passes the 2-channel information to the source, despite the receiver's multichannel capabilities. So, the player sends only 2-channel audio to the receiver, rather than high-quality surround sound.

One handy workaround would be to simply run a separate optical or coaxial cable for audio. Unfortunately, many HDMI-equipped components are designed to turn off digital audio outputs when the HDMI output is in use. We have found that some models do this and some don't (even from the same brand), and going forward, we expect to see more models switching off their digital audio outputs.

Another receiver-related HDMI sound issue: some older HDMI-equipped receivers aren't designed to pass audio through their HDMI connections — they perform video switching only. To get multichannel audio from these receivers, you need to connect an optical or coaxial digital cable from your video source to the receiver. Only a few entry-level receivers still have this limitation, but it's something to be aware of.

Last updated April 26, 2016
  • Jack from Illinois

    Posted on 6/25/2015 9:33:54 PM

    I felt you did an excellent job in explaining the uses of HDMI cables, and the differences in HDMI cables, and what to do in different situations.

  • Nina Cafolla from Ireland

    Posted on 7/13/2015 5:09:45 PM

    I have what must seem like an imbecilic question, but how do you switch from one HDMI source to another on your remote control?

  • Jeff Miller from Crutchfield

    Posted on 7/14/2015 9:19:07 AM

    Nina, it depends on the brand of the device(and remote), but most remotes have a "Source" or "Input" button that will bring up an on-screen menu.

  • Dennis from Phillipsburg

    Posted on 7/14/2015 11:33:59 PM

    Very informative

  • Pablo from London

    Posted on 9/5/2015 8:57:12 PM

    Hi, what do you mean when you speak of "sparkles"? I think I may be experiencing this on my new tv? Brilliant articles btw.

  • Brian from Gillespie,Illinois

    Posted on 9/12/2015 11:50:12 AM

    Why all the problems with HDMI switching failures? Purchased two expensive components in the last couple years. A Marantz AV7701 preamp and a Onkyo NR809. Lost audio in both because of HDMI issues. I must give a big shout out to Onkyo. They are stepping up to the plate and fixing the issues. Repairing the problems as well as shipping both ways. Marantz on the other hand loves to sing the praises of their high end products. Both unfortunately the customer is the one who gets it in the end. My Marantz AV 7701 preamp failed short of 8 months use. It's under warranty. But their concept of customer service doesn't come close to Onkyo.

  • Jeff Miller from Crutchfield

    Posted on 9/16/2015 9:28:42 AM

    Pablo - I'd describe sparkles as colored or white flecks in the picture. They're not noise, they're actually pixel dropouts indicating a compromised signal.

  • Alex from Dix Hills

    Posted on 11/28/2015 7:28:20 AM

    I bought a Sony XBRX850c 4K tv. I have it connected to my Pioneer Elite SC75. Every time I change the channel thru my food cable box the picture freezes. If I go to the next channel the next channel loads with no problems. Spoke to Sony they claim I need a faster HDMI cable.

  • Norman

    Posted on 1/14/2016 8:21:57 PM

    How can you tell which HDMI cable version you have? I just purchased a HDMI cable from RadioShack with no mention on the cable or packaging.

  • Dave Bauer from Chesapeake

    Posted on 1/22/2016 8:07:05 PM

    Same question as Norman. I've got a collection of cables but don't know what version they are. I want to get rid of all of the lower version cables so I don't unintentionally generate connection problems.

  • Jeff Miller from Crutchfield

    Posted on 1/29/2016 3:25:39 PM

    Dave and Norman, on the cable itself, most HDMI cables are not labeled as far as capacity or HDMI/HDCP version. The most common way of differentiating them is "standard speed" and "high speed." A cable that's rated "high speed" can handle 4K video at the typical lengths most folks use. For example, AudioQuest says that their cables will "support HDMI 1.4 and 2.0 features at lengths up to 10 meters."

  • Julie Jacobson from Carlsbad

    Posted on 3/6/2016 1:18:25 PM

    Really nice job on this, Steve. Thank you.

  • Mary from Nahant

    Posted on 3/8/2016 7:14:43 AM

    Have samsung 4k tv set up with standard hdmi cable. Lag between voice and visual. Will high speed cable help with the lag

  • Jeff Miller from Crutchfield

    Posted on 3/15/2016 4:00:55 PM

    Mary, I doubt the HDMI cable is causing the lag. You might check the settings on your TV or source (cable box, Blu-ray player, etc) for a solution to the latency problem. If you ordered from us, give our Tech support a call -- you'll find their number on your invoice and shipping confirmation email.