Featured Research Article Archives
Ask Dr. A! Of Projectors and 1080p
I have been looking for a nice, affordable projector for some time and came across some reviews on Audioholics. The Sanyo Z4 seems like a real steal in terms of bang for the buck. With the dangling…
The All Channels Driven (ACD) Amplifier Test
This article explores the All Channels Driven power test popularized by some print magazines and manufacturers. It discusses its relevancy and real world implications.
Dielectric Absorption in Cables Debunked
This article explores the claim by some cable vendors that cables exhibit dielectric absorption like a capacitor. We discuss the purpose of a cable dielecric and whether it can affect sound.
HAA Level I Certification Training Course Overview
This article is about HAA certification training and it also contains some great information on home acoustics from the course which I have included in this article. You may find that even a few…
Loudspeaker Impedance, Series & Parallel Connection Basics
This article discusses Loudspeaker Impedance and the load an amplifier sees if you wire speakers in series or parallel. We discuss the math and expected SPL differences as well as pros/cons of each.
A New Way to Think About Room Acoustics
I often have people ask me some very basic overall questions about the acoustical design of a room, such as: how much will it cost, what will it look like, how much better is it going to sound? …
Switching Amplifiers: The Technology and the Issues
This article started because a good friend of mine dropped a Panasonic SA-XR50 switch-mode amplifier to me for some basic bench test. This article will NOT be a review of that unit, but an…
A Practical HDMI Cable Solution & Installation
Every house I've ever purchased, built and lived in all had one thing in common. A room built for Home Theater. Regretfully I had to sacrifice that in this house and after a long debate with my…
Inductor Coil Crosstalk Basics
As a fledgling electronics buff I gathered together the usual hodgepodge of spare parts, old TV's and all the other electrical odds and ends that youngsters bitten by that particular bug seems to…
Switching Amplifier (Class D) Basics
Just today I read on an internet forum a post by a "hot" new manufacturer of class D amplifiers saying that "the only way to solve the interference problem is to put the amplifier in a completely…
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