Featured Reviews & Articles

Understanding the Differences between HDMI Versions

HDMI has changed versions so many times it's been hard to keep up for most people. We've talked about the versions as part of other articles and documents, but it seemed fitting that we'd formulate and maintain a definitive document outlining the changes in a straightforward and easy-to-digest manner for all concerned. Hopefully this article helps you understand the format differences and aids in your ability to discern what features are important to you as you shop for HDMI-equipped products.

We are always preaching the more subs the better in a home theater system. So now that you've decided to purchase two subs, its time to show you how to correctly connect them up to ensure you achieve the maximum benefits of a multi sub system. Following the guidelines set forth in this article will help you integrate a multi-subwoofer system into your home theater. If done properly, using two or more subs will yield significantly better and smoother bass response for all of the seats in your theater room.

Recent Audio Formats & Technology Articles

First Look: THX Media Director
by Tom Andry — last modified January 08, 2008 07:32

THX Ltd. today introduced THX Media Director, formerly codenamed “Blackbird,” to simplify home theater set-up and operation. THX Media Director will enable movies, music and other digital media to communicate picture and sound settings directly to consumer electronics devices, dynamically configuring them for the best playback experience.

Tech Article: CD Compression Depression Music Industry Idiocracy
by Dan Banquer — last modified November 12, 2007 13:28

Imagine, if you can, going to Paris to see the Mona Lisa. You wait in line for hours only to come to what appears to be a postcard of the Mona Lisa placed where the original had been. You ask the museum staff what happened to the original and you are told that this representation is what is required for the commercial success of the painting. Totally disgusted, you walk out with a severe case of what I call Compression Depression. The music industry as of late seems to be no different as they pump up the output levels and lay on the compression to play into the LOUDER is better mentality.

Tech Article: Exploring Digital Audio Myths and Reality Part 1
by Chris Tham — last modified April 26, 2007 11:43

By: Chris Tham This is part one of a set of articles exploring some common myths and…

Tech Article: Understanding Surround Sound Production
by Patrick Hart — last modified December 05, 2004 19:00

When our friends at DTS offered to fly me to San Francisco to cover a seminar they were putting together, I was intrigued. From it's somewhat generic sounding title I was at a loss to figure out how this seminar presentation would play out.

Tech Article: The Case for NOT going above 0 dBFS For Digital Playback Systems
by Dan Banquer — last modified October 24, 2004 20:00

I first became aware of this issue back in the early 90's when I was testing a DAC that used a Burr-Brown Digital Filter and D/A Converter. I observed that the 1kHz square wave test from CBS CD1 test disc was being clipped. I knew that the analog low pass filter had plenty of headroom, so I decided to contact Burr-Brown and speak to an applications engineer. When I explained to the applications engineer exactly what I was observing he remarked that this test went over the 0 dBFS limit and was clipped by the digital filter.

Tech Article: Issues with 0dBFS+ Levels On Digital Audio Playback Systems
by Chris Tham — last modified October 23, 2004 20:00

When you make a digital recording, an analog waveform (represented by an electrical signal with a continuously varying voltage) is sampled at regular intervals and converted to a set of numbers. Each number, or digital sample , correspond the voltage of the electrical signal at a specific point in time. These numbers are stored in binary form with a specific word size (typically 16-24 bits). The minimum and maximum numbers that can be stored depends on the word size, and corresponds to the voltage range of the electrical signal.

Tech Article: Dynamic Comparison SACD vs CD - Part 5
by Chris Tham — last modified February 12, 2007 06:02

Reprinted with the Permission of Christine Tham. Visit her very informative website at: …

Tech Article: Dynamic Comparison of LPs vs CDs - Part 4
by Chris Tham — last modified September 02, 2004 20:00

Yes, you have heard all the arguments before, and you are probably sick and tired of it. LP vs digital is a "religious war" that has been played out by various audiophiles ever since the CD format was introduced in the early 1980s.

Tech Article: THX Select and THX Ultra2 Certification General Questions — by Gene DellaSala — last modified August 30, 2004 20:00

Tech Article: Upsampling vs. Oversampling for Digital Audio — by Nauman Uppal — last modified August 30, 2004 20:00

Tech Article: Dynamic Comparison of CD, DVD-A, SACD - Part 3 — by Chris Tham — last modified August 30, 2004 20:00

Tech Article: Dynamic Comparison of CD, DVD-A, SACD - Part 2 — by Chris Tham — last modified August 30, 2004 20:00

Tech Article: Dynamic Comparison of CD, DVD-A, SACD - Part 1 — by Chris Tham — last modified August 30, 2004 20:00

Tech Article: DVD-Audio vs. SACD vs. CD — by Dan Banquer — last modified August 30, 2004 20:00

Tech Article: DVD Audio & SACD - The Royal Scam Part II — by Gene DellaSala — last modified August 30, 2004 20:00

Tech Article: DVD Audio & SACD I - The Royal Scam — by Gene DellaSala — last modified August 30, 2004 20:00

Tech Article: Brick Wall Digital Filters and Phase Deviations — by Dan Banquer — last modified August 30, 2004 20:00

Tech Article: Current Trends in the Recording Format Arena P2 — by Dan Banquer — last modified August 30, 2004 20:00

Tech Article: Current Trends in the Recording Format Arena P1 — by Dan Banquer — last modified August 30, 2004 20:00

Tech Article: 2003 Preamp-Processor and Receiver Wish List — by Gene DellaSala — last modified August 30, 2004 20:00

Tech Article: Audio Lip Sync - The Next Big Feature? — by Clint DeBoer — last modified August 30, 2004 20:00

Tech Article: CD and DVD Longevity: How Long Will They Last? — by Andy Marken — last modified August 25, 2004 20:00

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