All items tagged with passive radiator (54)

New Beyerdynamic SPACE Speakerphone Optimizes Sound Quality for Calls and Music

March 3, 2022 by Joao Martins

New Beyerdynamic SPACE Speakerphone Optimizes Sound Quality for Calls and Music

Following the unexpected success of its Phonum wireless Bluetooth and USB speakerphone, which has proven its worth outside of corporate environments when the global pandemic forced users to work from home, Beyerdynamic took the lessons learned and created a universal, portable speaker that is ideal for work-from-anywhere and music listening when needed. The new Beyerdynamic SPACE combines the best of both worlds and is a also a smart, consumer-appealing design.

Patent Review: Loudspeaker Having a Passive Radiator US9426548B2

January 3, 2022 by James Croft

Patent Review: Loudspeaker Having a Passive Radiator US9426548B2

This article discusses a very interesting design and patent granted in August 2015 to Gary A. Rayner and James C. Larsen, as the inventors, on behalf of Treefrong Developments, from San Diego, CA. The patent abstract details a loudspeaker using one or more active drivers, with a passive radiator connected to each driver and dedicated processors and amplifier per channel - a slightly different approach to a familiar concept. This article was originally published in Voice Coil, November 2015.

Voice Coil December 2021 Helps You Tune Your Loudspeaker Responses

November 24, 2021 by audioXpress Staff

Voice Coil December 2021 Helps You Tune Your Loudspeaker Responses

In the December 2021 edition of Voice Coil, Vance Dickason details the possibilities of the CrossLite+ DSP filter software, while James Croft reviews an interesting invention to improve the bass response in automotive audio applications. And this edition includes an updated measurement microphone directory, and two interesting low-frequency drivers on Test Bench, with the Dayton Audio Epique MMAG E150HE-44 subwoofer, and the powerful 10NW76 high-SPL woofer from B&C Speakers.

Dinaburg Speaker with Dual Diffuser - An Innovative Coaxial Driver Design with a Passive Ring Radiator

June 25, 2021 by Mike Klasco

Dinaburg Speaker with Dual Diffuser - An Innovative Coaxial Driver Design with a Passive Ring Radiator

Recently, Dinaburg Technology, based in Dallas, TX, was issued their first US patent for an electro-dynamic loudspeaker with an integrated coaxial passive ring radiator. Mikhail Dinaburg, noted physicist and the patent inventor, uncovered some missing elements in previous coax and passive radiator work and set out to prove it. Dinaburg’s patent discloses techniques for higher performance sound reproduction, enabling lower distortion, extended frequency range, higher efficiency, and improved speech intelligibility. The invention has wide applications and scales from a earphone driver to near-field studio monitors, ceiling speakers, under couch subwoofers to the largest concert subwoofers.

Heavenly Soundworks to Showcase FIVE17 Loudspeaker System at T.H.E. Show 2021

May 28, 2021 by audioXpress Staff

Heavenly Soundworks to Showcase FIVE17 Loudspeaker System at T.H.E. Show 2021

So many audio manufacturers have kept busy during the global pandemic and have yet to show publicly the results of their work. Heavenly Soundworks is a new US brand, which will officially debut the FIVE17 Loudspeaker System at T.H.E. Show 2021, 11-13 June, at the Hilton Long Beach Hotel, Long Beach, CA. This will be the first chance to listen to this new active loudspeaker design, the work of Kevin and Jonathan Couch, the company’s co-founders.

Sony Introduces Powerful SRS-XB13 Extra Bass Bluetooth Speaker

March 26, 2021 by Joao Martins

Sony Introduces Powerful SRS-XB13 Extra Bass Bluetooth Speaker

Portable (battery-powered) Bluetooth 5 speakers are getting another market boost beyond the original "cheap and cool" factor or earlier designs. As Sony shows with its latest SRS-XB13 compact and portable wireless speaker, users want something that plays music with enough punch and expansive sound, but that can also be used anywhere as a convenient extension of a smartphone, to take over calls and replace the low-quality speaker mode experience in a seamless way. And it must cheap...

The First Smart Speaker from Apple: A Strong Design and How It Is Perceived

October 15, 2020 by Joao Martins

The First Smart Speaker from Apple: A Strong Design and How It Is Perceived

For this edition of The Audio Voice, I intended to focus a bit more on the latest developments in the fascinating world of sensors and how it impacts product development and design in all applications areas, particularly in consumer electronics, automotive, and health applications. After writing previously about Apple - the sensors on the Apple Watch and the surprising firmware updates for the AirPod Pro earbuds - I really didn't want to go back to Apple. But as always, Apple has a way of surprising us exactly when we least expected, and the company made another important audio announcement.

Apple Unveils HomePod mini Smart Speaker to Expand Its Smart Home Ecosystem

October 13, 2020 by audioXpress Staff

Apple Unveils HomePod mini Smart Speaker to Expand Its Smart Home Ecosystem

Opening what was broadly expected to be an event focused on the iPhone 12 unveiling, Apple introduced the new HomePod mini. Unlike the original HomePod, primarily focused on the music listening experience, the HomePod mini is touted as an actual Smart Speaker. In fact, betting on leading on four fronts: to combine a great music listening experience, an intelligent assistant, and smart home capabilities, with built-in privacy and security, in a beautiful compact design. Also much more affordable, at just $99.

New Audio Pro SW-10 Home Subwoofers Available in White and Black

August 3, 2020 by audioXpress Staff

New Audio Pro SW-10 Home Subwoofers Available in White and Black

Swedish speaker manufacturer Audio Pro announced a new product in its growing line of home entertainment speakers. The SW-10 - an active subwoofer designed to impress with its Scandinavian aesthetics, combines 200 watts Class D, DSP controlled amplification, an 8” long throw offer and two 9" passive radiators on the side of the cubic enclosure. Audio Pro says this premium sub will work perfectly with both music and movies and was engineered to integrate seamlessly with the brand's main speakers.

The DSP Assisted Reflex System - Squeeze More Bass from Every Reflex Design

July 30, 2020 by Perry Marshall

The DSP Assisted Reflex System - Squeeze More Bass from Every Reflex Design

Vented systems are in chronic overload. This article shows how, by applying low-cost digital signal processors (DSPs) to passive radiators, you can extend bass an octave below what is normally considered practical. At the same time you can increase power handling and maximum output, and squeeze high performance from tiny systems. We all know reflex systems are more efficient and offer deeper bass than sealed systems. However, the vast majority still fall short of their potential by 6 to 12 dB or more. Worse yet, often people don’t realize how vulnerable drivers are to damage. Many abuse woofers without knowing it. Few realize how much more sound output is possible from a DSP Assisted Reflex design.

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