Wide-Band (WB) vs. Narrow-Band (NB) FM Systems

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When to Use Wide-band vs. Narrow-band FM Systems? Wide-Band FM systems are the correct choice when you are dealing with a limited budget, a relatively small number of simultaneous broadcast channels, a good ambient environment with little radio interference, and low fidelity voice applications as opposed to music. Narrow-band is an excellent choice in suburban or rural areas. Narrow-band FM… Read the rest

Wireless Microphone Systems

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How Wireless Microphone Systems Work As an audio technician, I have witnessed a revolution in the conference industry. As sound quality and reliability have increased and cost has decreased, wireless microphone systems have become very popular. They have thrived for one important reason: eliminating the microphone cable connection frees you to walk across the stage, among the audience, (and, sometimes,… Read the rest

Fender Passport Portable PA Systems

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Fender Passport Deluxe PA Systems vs. Fender Passport Deluxe Plus Systems This article compares the older self-contained Fender Passport Deluxe PA systems to the newer Fender Passport Deluxe Plus sound reinforcement systems. Both the Fender Passport Deluxe PA systems and the Fender Passport Deluxe Plus PA systems include everything you need to project great sound for general presentations as well… Read the rest

6 Questions to Ask when Purchasing Classroom Headphones

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Headphones are essential audio components that allow private playback of speech or music at personally comfortable volume levels. In the classroom, headphones attach to media players or listening centers so students can interact with audio programs at their own pace without disturbing others. While ordinary consumer headphones are ideal for playing tunes during a quick jog or a long bus… Read the rest

Overhead Projectors

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Features to Consider Before Purchasing an Overhead Projector Overhead projectors combine an old technology with new technology options to create machines which are both reliable and versatile. Available Buhl and 3M overhead projectors give you a wide range of choices to supplement almost any presentation. The question is which overhead projector is right for you? To help you decide we… Read the rest

8 Features of Tabletop Lecterns & Lectern Housings to Consider Before Buying

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All lecterns theoretically fit on a table or desktop, and, unlike free-standing podiums (that stand on their own pod or foot), lecterns are relatively small and portable. But some lecterns are less portable than others. These lecterns tradeoff weight and portability for other features that may be of equal or greater importance. As a result, tabletop lecterns come in a… Read the rest

Signal Flow of a Typical PA Setup

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Understanding Signal Flow in 4 Simple Steps Understanding signal flow is important to have a nuanced and complete understanding of how audio systems work. Here’s the basic list: An input transducer (such as a microphone or pickup) to intercept a sound signal and convert it into an electronic signal. An amplifier to boost the weak signal produced by the pickup… Read the rest

Powered Megaphones & Bullhorns Amplify Speech

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How To Choose a Powered Megaphone or Bullhorn What Are They? Embed from Getty Images Megaphones, also known as bullhorns, are instantly recognizable because of their distinctive conical or bell shape. For literally thousands of years sound, and particularly the human voice, has been projected by megaphones. This is due to the natural acoustic properties of a parabaloid. The shape… Read the rest

Assistive Listening Devices: Portable Amplifiers for Personal Use

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4 Assistive Listening Devices that Enhance Life for the Hearing Impaired Portable Assistive Listening Devices boost hearing in noisy places Assistive listening devices enhance the quality of life for people with mild to moderate hearing impairment due to aging or the environment. Hearing loss isolates the hearing impaired from everyday life. Conversations become difficult to follow, movie plots become confusing,… Read the rest