Sound Associates, Inc. Since 1946

Audio Consulting Design and Installation

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SA1521 Home System
SA1523 3-channel receiver in charger
with small area transmitter (SA1401).
Since the introduction of infrared as the method of choice in assistive listening systems in 1979, Sound Associates, Inc. has been the industry leader in supplying systems to the Broadway theaters and theaters across the country. And this broad base of distribution has resulted in a wide network of individual consumers.

"In the year 25 years since we installed the first infrared listening system, many of the people using our headsets at the theaters have purchased their own. Some just want to carry their own to the theater or house of worship, but many also wanted an audio boost at home, on their own TV," explains Mark Annunziato, Vice President of Engineering and Operations." But now the industry has pretty much abandoned tens of thousands of home system consumers-- not to mention the hundreds of venues that still have system working on 95 kHz."

It's true. As the majority of infrared listening products have moved to the higher frequencies (2.3 MHz, 2.8 MHZ, etc.) not only home consumers but the overwhelming majority of commercial consumers have systems that are still operating at 95 kHz. So what are the options if a single headset or the transmitter fails? Replace the entire system?

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This was the main motivation behind the design of Sound Associates' newest headset receiver, the SA1523. This multi-channel receiver can operate at 2.3 and 2.8 MHz, but also on 95 kHz-- the ideal solution for the transition to the newer frequencies. Many theaters have already begun the transition (maybe without even knowing) with the installation of the SA1422 multi-channel which can modulate the signal in both 95 kHz or 2.3 MHz (or both, if desired). Most Broadway theaters are already broadcasting in two-channels in preparation for the transition.

"We anticipate the entire transition to last five to seven years," Annunziato said. "As parts to repair existing (older) receivers become obsolete, they can meld in the new receivers into their inventory. Once the changeover of receivers is complete, a simple change of frequency on both the transmitter and receiver... and you're done. This eliminates the undue burden of costs to the theaters for a complete new system, as well as installation costs."

The lightweight receiver, with rapid-charging lithium ion battery is the perfect marriage of stethoscope and pendant-style. The eartubes can be used by individuals with light to moderate hearing loss; or insert a neck induction loop, plugging it into a jack conveniently located on the bottom of the receiver to make the receiver compatible to t-coil compatible hearing aids an Cochlear implants.

For Specification Sheet, click here.

Choose the system that's right for you!

For use at home
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For use at home and theaters
click here