Ultrasonic Pro AmplifierSoundlazer Amp rear connectionswhisper1

Whisper Bar with Ultrasonic Amplifier Kit

$418.00 $379.00

Out of stock

Product Description

A new concept in directional audio, the Whisper delivers a low volume, directional beam of sound exactly where you want it.  It’s 180 degree adjustable mount allows you to rotate the audio beam in any position.  The Whisper can be installed under traditional poster advertisements or even a flat screen TV to beam your message to only a few people at a time.  Space multiple 1″ Whispers a few feet apart and you have showers of sound that listeners can walk through hearing different messages in each location.


  • Black anodized aluminum case.
  • 30 transducers, each 10mm in diameter.
  • A very narrower vertical beam angle for focused directional audio in quite spaces.
  • Wire terminals for connection to Soundlazer amplifiers.
  • measures 12.0″ (305mm) X 1″ (25mm)

Perfect for public displays and advertising

With over two years of testing and development behind us, the Soundlazer Pro Amp contains the latest algorithms and DSP technology to deliver the crispest and best sounding directional ultrasonic audio of any product on the market.  In addition, our technology is less than half the price of any similar competing products.  This kit includes the 1″ Whisper sound bar and  ultrasonic amplifier.   Like all other parametric speakers, the Whisper delivers a very narrow beam of directional audio.


Many Uses

  • Use your imagination: The effects of parametric speakers are not only a great demonstration of how sound propagates through air but also offer many useful applications. Some examples are:
  • Ambient Background Sound:  Put the Soundlazer behind a plant or table in a room and “beam” background sounds or music into the room.  Unlike other speakers, the Soundlazer will create virtual sound sources around the room.
  • Showroom Floors:  Beam important product information, advertisements or promotions quietly and discreetly to individual customers in your store.
  • Animatronics and Displays: By pointing the Soundlazer at a stuffed animal, animated display or other object, the sound will appear come directly from the object the Soundlazer is pointed at.
  • Public Safety: Warning selected people in a group of localized dangers or obstructions.
  • Advertising: Selective billboards where only the person in front of a particular ad can hear the message.


  1. Soundlazer Pro Amplifier.
  2. 1″ Whisper bar. (12″ length)
  3. 120/240 VAC worldwide power adapter.
  4. 3.5mm stereo audio cable.

Tech Specs

  • 12VDC power input.
  • Ultrasonic Amplifier drives up to 200 ultrasonic transducers.
  • 30 transducers, each 10mm in diameter.
  • Very narrow beam angle for low volume directional audio in public spaces.
  • screw terminals for connection to Soundlazer amplifiers.
  • Whisper bar measures 12″ (305mm) X 1.00″ (25.4mm).
  • Ultrasonic amplifier measures 4″ (102mm) wide X 5″ (127mm) deep X 1.5″ (38mm).


Here is a link to the Soundlazer Pro Amp User’s Guide.


Approximate usable range indoors: 15 feet (4.5 meters) with a beam size of around 2.0 feet (1.0 meter) wide by 1 foot (0.6 meters) vertically.

While the Soundlazer is not weatherproof, outdoor range varies with weather conditions such as wind and temperature.

Not intended for noisy public spaces.  The 1″ Whisper delivers low volume sound for areas with lots of people not wanting to be disturbed.

Additional Information

Weight 3 lbs
Dimensions 9 x 7 x 5 in
SKU: WhisperKit1