A Clean Audio Installation Guide™
Benchmark's "Clean Audio Installation Guide™"
By Allen H. Burdick
"Required Reading!"
This 24 page guide has been very popular. It has been hailed as “required reading for all broadcast engineers” by Richard Sequerra.
“We were able to change our engineering standards throughout the CBC as a result of this paper.” - Tom Holden Manager, Systems Engineering - Radio, CBC Toronto.
This paper revolutionized broadcast audio in the 1980's. It moved the industry away from 600-Ohm interfaces and radically changed the way analog audio was handled in professional environments.
In many ways, this paper still impacts every product that Benchmark builds today. We think that you will find this classic paper as useful today as it was when it was originally published in the 1980's. Due to the popularity of this paper, Allen updated it several times. The links will take you to Allen's final 1997 version.
We agree with Richard Sequerra. This is your required reading assignment!
Also in Audio Application Notes
Audiophile Snake Oil
The Audiophile Wild West
Audiophiles live in the wild west. $495 will buy an "audiophile fuse" to replace the $1 generic fuse that came in your audio amplifier. $10,000 will buy a set of "audiophile speaker cables" to replace the $20 wires you purchased at the local hardware store. We are told that these $10,000 cables can be improved if we add a set of $300 "cable elevators" to dampen vibrations. You didn't even know that you needed elevators! And let's not forget to budget at least $200 for each of the "isolation platforms" we will need under our electronic components. Furthermore, it seems that any so-called "audiophile power cord" that costs less than $100, does not belong in a high-end system. And, if cost is no object, there are premium versions of each that can be purchased by the most discerning customers. A top-of-the line power cord could run $5000. One magazine claims that "the majority of listeners were able to hear the difference between a $5 power cable and a $5,000 power cord". Can you hear the difference? If not, are you really an audiophile?
Making Sound with Plasma - Hill Plasmatronics Tweeter
At the 2023 AXPONA show in Chicago, I had the opportunity to see and hear the Hill Plasmatronics tweeter. I also had the great pleasure of meeting Dr. Alan Hill, the physicist who invented this unique device.
The plasma driver has no moving parts and no diaphragm. Sound is emitted directly from the thermal expansion and contraction of an electrically sustained plasma. The plasma is generated within a stream of helium gas. In the demonstration, there was a large helium tank on the floor with a sufficient supply for several hours of listening.
While a tank of helium, tubing, high voltage power supplies, and the smell of smoke may not be appropriate for every living room, this was absolutely the best thing I experienced at the show!
- John Siau
Audio Calculators
We have added an "Audio Calculators" section to our webpage. Click "Calculators" on the top menu to see more like these: