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Technical Articles and Editorials

AVR – Audio Video Receiver – Build Quality: Part III – Component Choices for a High Performance Design

AVR-Audio Video Receiver-Build Quality: Part III

In Part III of this article series, I discuss jitter, digital filtering, and Large Scale Integrated Circuits (LSI) in relation to AVRs.

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AVR - Audio Video Receiver - Build Quality: Part II - Design of High-Performance AVRs and Pre/Pros

Audio Video Receiver - Build Quality: Part II

Following on my technical article"AVR - Audio Video Receiver - Build Quality: Part I", here, in Part II, I dig a bit deeper into the performance of a single-chip Large Scale Integrated (LSI) analog AVR chip and introduce better solutions employing Small Scale Integrated (SSI) analog chips. Herein, I refer only to Pre/Pros, but everything discussed applies equally to AVRs. Pre/Pros tend to use analog SSI chips, while most AVRs use the LSI solution (see the chart in Part I of this article for the make and model numbers of the AVRs and Pre/Pros using the LSI chip). I carryover the term, AVR LSI, from the first part of this article and refer to AVR when I comment on products with power amplifiers.

 

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Thiel's New SCS4T Floor Standing Speakers

Thiel's New SCS4T Floor Standing Speakers

Back around 2007 Thiel Audio introduced a monitor sized two-way speaker in the SCS4 that proved to be more than an audiophile quality stand speaker. Five of them make a great surround sound package.

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Dirac Research Room Correction Technology

Dirac Research Room Correction Technology

Digital audio room correction is nothing new of course yet researchers from Uppsala University in Sweden have developed their own. Dirac Research was founded in 2001 and has not only applied their technology in the automotive...

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Editorial: High Frame Rate (HFR) Movies and the Choice of Frames per Second

EditorialHigh Frame Rate (HFR) seems to be the new buzzword in movie production, these days, at least to some directors who are experimenting with it. For example, The Hobbit was shot at 48 FPS (Frames per Second), with a 4K digital video camera. The idea is that HFR makes motion much smoother. And it works. But, do we, as viewers, then feel that we are actually in the scene, as opposed to being in the audience? One industry professional who is working with 4K and 3D said he hated the 48 FPS. It takes away the "film look" that so many people like, and turns the motion picture into something that has the "Soap Opera Effect", namely, live TV. But, notwithstanding the visual effect, let's focus on the choice of 48 FPS and why this is a potential disaster.

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AVR - Audio Video Receiver - Build Quality: Part I

AVR - Audio Video Receiver - Build Quality: Part 1What does your money purchase inside the chassis of an AVR or Pre-Pro in an audio / video system?  In this article, one in a three-part series, I attempt to answer this question: I will open the top and look at the parts inside and show how each of the individual parts can affect the audio quality.

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Editorial: The Industry Learns a Lesson: The Death of 3D vs. Industry Predictions. Will this Change their Plans for Introducing 4K to the Public?

EditorialThe recent announcement that ESPN is eliminating its 3D channel on cable and satellite tells a sad story of overestimating the impact of 3D on selling more HDTVs. Although 3D movies continue to be released - for the time being - it appears that consumers are not interested in watching 3D at home. The "glasses" are claimed to be the scapegoat, but I think there is more to it than that.

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Bjorn's Music Matters Seminars

Bjorn's Music Matters Seminars

Bjorn's is a major A/V Retailer and Custom Installation shop in San Antonio, Texas. The store was founded in 1975 by Bjorn Dybdahl. He started out in a modest 1,000 square foot lease space under the banner...

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Anthem Room Correction (ARC) System - Part 2 - Including a Subwoofer

Anthem Room Correction ARC Part 2 - Including a SubwooferIn Part 1 of this series, we discussed the Anthem ARC (Anthem Room Correction) firmware that is present in their SSPs as well as the AVRs which have a  reduced filter bank size. By far, the most significant sonic issue for acoustic music when a subwoofer is deployed occurs around the crossover from the subwoofer to the main speaker. In Part 2 of this series, we take a look at Anthem's ARC (Anthem Room Correction) when adding a subwoofer to the system.

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Daedalus Speaker Upgrade

Daedalus Speaker Upgrade

I've been enjoying my Daedalus 2.1 speakers in my stereo setup ever since I reviewed and bought them in 2008.

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Anthem Room Correction (ARC) System - Part 1

Anthem Room Correction ARC System-Part 1Among the numerous room correction systems I have tested, the Anthem ARC currently stands out as the best for consumers. In this mulit-part review, I take you through how room correction works, and give you some results I obtained in several rooms of my home.

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