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Balanced vs. Unbalanced Interconnects

This article is a primer for discussing the differences and applications for balanced vs unbalanced cables. When using unbalanced interconnections between audio equipment the primary noise-coupling…

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Do I Need 120 Hertz HDMI Cables?

One of the most common sorts of questions from our customers these days is some variant on this: "Do I really need a 120Hz HDMI Cable?" In consumer electronics stores across the country, consumers…

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Recently Reviewed

HDMI 1.4 and Through the Ages
Clint DeBoer — last modified February 02, 2010 20:17
HDMI 1.4 and Through the Ages
Key Digital had an interesting newsletter that got sent out this week. In it they had a table which went through the various iterations of HDMI, from version 1.0 through the newest 1.4. We thought it was a good chart, though we disagreed (slightly) with some of their assessments on the importance of each of the versions. As I hinted at in my article on The Twelve Biggest Industry Mistakes of the Digital Age I believe that HDMI is really more of a stop-gap interface whereas it could have been a new standard. Instead, we have a largely "stupid" new cable system that merely carries data. HDMI 1.4 does little to change this reality.

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Alternatives for AV Home Networking
david — last modified August 16, 2009 19:49
Alternatives for AV Home Networking
The ongoing convergence of AV and computing is inevitable, rooted in the dawn of digital media with the advent of the CD, and nurtured by the Internet. Media servers, multimedia gaming consoles, HTPC, networked AV receivers, mp3 player docks, IPTV; digital entertainment is becoming as at home on computers as it is on traditional AV gear. However, all of this crosspollination between the two often leaves entertainment stored in disparate locations so a reliable connection is required to transfer the entertainment files between devices. For those who find the shortcomings of Wi-Fi make it less than an ideal solution, there are other methods available that are not as onerous as pulling Ethernet cable through walls and attics by making use of existing home wiring systems. These methods also provide connections that are more secure with better data throughput and reliability. There is a reason that mission critical business systems and servers are primarily hardwired and not connected by Wi-Fi.

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Crimping & Soldering - Keys to Connection Performance and Longevity
Thomas Steves — last modified March 09, 2009 22:43
Crimping & Soldering - Keys to Connection Performance and Longevity
Audio and Video Cables are not just dependent on the wire or cable used, or the connectors used. The quality of the connection between the wire or cable and connector is just as important, if not more so. The biggest problem with the audio/video cable market is that marketing departments choose fads and fallacies, non-applicable specifications and pseudo science over real world objective measurements and tried and true methods of creating wire and cable assemblies that will last for many years with high quality results. Today we're going to look at those unsung heroes of our A/V world, the ones that hold it all together - the crimp and the solder joints.

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What Do HDMI Spec Versions (1.2, 1.3, 1.3a, etc) Mean For Cable Choice?
Kurt Denke — last modified July 23, 2009 22:22
What Do HDMI Spec Versions (1.2, 1.3, 1.3a, etc) Mean For Cable Choice?
Many people are worried, when buying HDMI cable, about the spec version of the cable in question. Is it the latest spec version? Will it support all the features of the devices it's hooked to? Most of the fears and doubts associated with this question are unfounded, but there are some interesting issues with regard to HDMI spec version, and we'll sort those out in this article.

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Do I Need 120 Hertz HDMI Cables?
Kurt Denke — last modified December 31, 2008 09:39
Do I Need 120 Hertz HDMI Cables?
One of the most common sorts of questions from our customers these days is some variant on this: "Do I really need a 120Hz HDMI Cable?" In consumer electronics stores across the country, consumers are being told that their new 120 Hertz displays will not work properly, or will not work optimally, without a cable designed for 120 Hertz. We'll address this question two different ways, beginning with the short answer and following with the long answer/explanation.

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Myth vs Reality – Putting Cat5E-Based A/V Structured Wiring In Its Place
Sending audio, video and control signals over twisted pair cables have become common practice in the contemporary marketplace. There is a good reason for this. Twisted pair cables are cheap, ubiquitous and comfortably familiar to anyone with any level of installation exposure to data networking and telephony. UTP-based A/V installations are appealing for their perceived low cost and performance advantages. Widely accepted as a panacea that banished the need for task-specific cables to the equipment closet of history, those who universally advocate the use of balun-based infrastructure would do well to remember the words of Plutarch; “To find a fault is easy; to do better may be difficult.”

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Wireless HDMI Takes Flight
Tom Andry — last modified September 05, 2008 15:41
Wireless HDMI Takes Flight
Wireless HDMI seems to be coming to a living room near you. While everyone pretty much agrees that HDMI is the most bitter-sweet invention to hit the consumer AV electronics industry in some time, there's no denying that most are trying to make end runs around the format. In some cases that is through the use of cable conversion, while others are looking to send HDMI through the ether.

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Long HDMI Cable Bench Tests - Monster Cable Shootout
I decided to write this article the first time I saw another writer say "HDMI is digital - it either works or it doesn't." Then I saw that statement get repeated over and over. The problem is that HDMI isn't like a digital coax audio cable - it can degrade partially and produce sparkles and snow. We'll illustrate some of this below. It took nearly 6 months to research and prepare for this experiment. I intended to acquire as many HDMI cables as possible and focus on empirical testing of mostly longer lengths to show the differences that abound when you exceed 5 meters. The exercise, I believed, would save many consumers from losing lots of money and time - on a number of levels.

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Pear Cable Redux: How to Combat Scam with Science
david — last modified July 23, 2009 04:21
Pear Cable Redux: How to Combat Scam with Science
A Case Study in Applying an Audioholics A/V Education to Identify Marketing Drivel. In this follow-up to our initial article, we will look at Pear Cable as a case study in evaluating exaggerated marketing claims about the audio performance improvements attributed to cables. We will use known science, established engineering principles, and the educated opinions of well known audio engineering practitioners to look for contradictory statements, mistakes and misuse of engineering knowledge, and exaggeration of the audible significance to certain aspects of audio performance.

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Editorial : What's the Matter with HDMI? Kurt Demke — last modified May 18, 2007 23:04
Technical Article : Bi-wiring Part 2: The Cable Conundrum Jim Lesurf — last modified March 28, 2007 20:00
Technical Article : Bi-Wiring From Amplifier To Loudspeaker Jim Lesurf — last modified March 20, 2007 20:03
Editorial : Un-Sound Advice About Cables Gene DellaSala — last modified January 03, 2007 11:51
Technical Article : A Practical HDMI Cable Solution & Installation Mark Johnson — last modified March 21, 2006 19:00
Technical Article : HDMI Fiber Optics & Copper Cable Considerations Minsoo Park — last modified December 03, 2005 19:00
View All Articles in Cables and Interconnects
 
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