CHRISTMAS SPECIAL - Buy 2 components and get 4 free cables. Free shipping on all orders over $700.
CHRISTMAS SPECIAL - Buy 2 components and get 4 free cables. Free shipping on all orders over $700.
Your Cart is Empty
by Benchmark Media Systems January 01, 1980 1 min read
by Richard L. Hess
Audio-Video Systems Engineer
American Broadcasting Company
New York City
Copyright © 1980 Richard L. Hess
Copyright © 1980 Audio Engineering Society
All Rights Reserved
Richard L. Hess currently runs Vignettes Media in Aurora, Ontario.
The benefits of using a voltage audio transmission system in broadcast facilities is investigated. State of the art microphone preamplifier requirements and an ideal voltage system distribution amplifier are outlined. The application of the Peak Program Meter to the new systems and the modified installation at WABC-TV are covered.
by John Siau June 06, 2023 2 min read
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
by John Siau June 04, 2023 1 min read
We have added an "Audio Calculators" section to our webpage. Click "Calculators" on the top menu to see more like these:
by John Siau June 03, 2023 13 min read
If an audio system is composed of multiple components, we may have detailed specifications for each component, but we will not know the performance of the combined system without doing some calculations. You may have questions such as these:
Use Benchmark's online audio calculators to find answers!
For example, if we know the output power of an amplifier, as well as the sensitivity and impedance of our loudspeakers, we can calculate the maximum sound pressure level that our system can produce.
This application note provides interactive examples that help to answer the questions listed above.