Better Acoustics, Better Designs in audioXpress August 2024!

Better Acoustics, Better Designs in audioXpress August 2024!

Voice Coil August 2024 Is Ready for You!

Voice Coil August 2024 Is Ready for You!

Audio Amplification Meets Product Development in audioXpress July 2024

Audio Amplification Meets Product Development in audioXpress July 2024

The Audio Voice - Weekly Newsletter for audioXpress and Voice Coil Communities

The Audio Voice - Weekly Newsletter for audioXpress and Voice Coil Communities

You Can DIY! eDD - A Direct-Drive Amplifier for Electrostatic Speakers

February 21, 2024 by Jan Didden

You Can DIY! eDD - A Direct-Drive Amplifier for Electrostatic Speakers

This article details a lifetime project from audioXpress' technical editor Jan Didden. After a successful restoration project of a pair of precious ESL-63 Quad electrostatic speakers, he opted to design and build the eDD, a well-performing high voltage amplifier to directly drive electrostatic speakers. This challenging but successful DIY project with a design goal of 1500V RMS at 20mA RMS over the full audio band, took a while to complete but was a success. This article shares every step of the construction.

Sennheiser Invests in Norwegian Optical MEMS Microphone Pioneer sensiBel

February 21, 2024 by Joao Martins

Sennheiser Invests in Norwegian Optical MEMS Microphone Pioneer sensiBel

sensiBel announced a new successful 7 million Euros funding round with Sennheiser leading the investment together with existing main shareholders TRUMPF Venture, Skagerak Capital, Investinor, SINTEF Venture, MP Pensjon and Halden Kommunale Pensjonskasse. The funds will be used to expand production and invest in scalability of sensiBel’s patented optical MEMS microphones that offer 80dBA SNR and 132dB of dynamic range, a new level of performance for packaged miniature microphones.

Cloud2GND Bumblebee Bluetooth LE Audio Demonstration Board

February 21, 2024 by Joao Martins

Cloud2GND Bumblebee Bluetooth LE Audio Demonstration Board

Cloud2GND, an engineering house specializing in electronic circuit design, embedded systems, protocols, and connected devices developed the Bumblebee LE Audio Demonstrator, the first chipmaker-independent platform for product developers to test and evaluate Bluetooth LE Audio and Auracast applications. Featuring the Panasonic PAN1783 Bluetooth Low Energy 5.3 module, the board is a ready-to-use platform with a class-D amplifier, AKM stereo ADC/DAC, MEMS microphone, NFC and is powered over USB or external power supply.

Niron Magnetics Secures Funding to Accelerate Production of Rare Earth-Free Magnets

February 20, 2024 by audioXpress Staff

Niron Magnetics Secures Funding to Accelerate Production of Rare Earth-Free Magnets

Niron Magnetics, the company pioneering the world's first high-performance, rare earth-free permanent magnets, announced it has received $25 million in new strategic funding from Samsung Ventures, Allison Transmission, and Magna. This investment will strengthen Niron's ability to expand its production facilities, scale manufacturing capacity for exclusive customer programs, and accelerate the commercialization of Niron's Clean Earth Magnet technology.

KEF Announces New Additions to Subwoofer Lineup: KC92 and KUBE MIE

February 20, 2024 by Alfred Moody

KEF Announces New Additions to Subwoofer Lineup: KC92 and KUBE MIE

Leveraging its recent innovations in transducer engineering since the launch of the extremely successful KC62 powered subwoofer with force-canceling and Uni-Core technologies, KEF is now taking its bass to a whole new level with the new KC92 Force-Cancelling Subwoofer and four new models in the Kube MIE Subwoofer Series - the Kube 8 MIE, Kube 10 MIE, Kube 12 MIE, and Kube 15 MIE. A wide range of subwoofer options to ensure the most visceral experiences in modern home audio.

Wi-Fi Alliance Celebrates 25 Years of Wi-Fi Innovation and Impact

February 20, 2024 by audioXpress Staff

Wi-Fi Alliance Celebrates 25 Years of Wi-Fi Innovation and Impact

One of technology's greatest success stories celebrates a quarter century. 2024 marks a significant milestone in the history of technological innovation as we commemorate the 25th anniversary of Wi-Fi. The technology that enabled wireless networking and still leads in comparison with any other wireless topology and technology, Wi-Fi is today an essential component of home entertainment, ready to evolve to new heights.

SKAA Takes Jamstack 2 Wireless Smart Amp to the Next Level

February 19, 2024 by Joao Martins

SKAA Takes Jamstack 2 Wireless Smart Amp to the Next Level

Eleven Engineering, the company that created SKAA wireless audio technology and a manufacturer of semiconductor products for wireless audio applications, announced that the new Jamstack 2 guitar-attachable smart amp has joined the SKAA ecosystem with both transmit and receive capabilities. With the general availability of the Jamstack 2 amplifier, guitar players now have a SKAA-enabled amplifier that is ideal for practice and performance, providing a robust wireless system.

FCC Approves Wireless Multichannel Audio Systems in the United States

February 19, 2024 by Joao Martins

FCC Approves Wireless Multichannel Audio Systems in the United States

The Federal Communication Commission (FCC) approved a change in its regulation that now permits operation of Wireless Multichannel Audio Systems (WMAS) in the United States. WMAS is an advanced wireless microphone technology designed to meet the challenges of highly demanding live performance and studio applications. Sennheiser started development work on WMAS over ten years ago and, in August 2018, the company filed a Petition for Rulemaking with the FCC requesting a modification in the bandwidth limit specified for wireless microphones.

Inspire the Possibilities with Bluetooth LE Audio and Auracast

February 16, 2024 by Joao Martins

Inspire the Possibilities with Bluetooth LE Audio and Auracast

An Interview with Chuck Sabin, Senior Director, Market Development, Bluetooth SIG. The Auracast Experience at CES 2024 enabled much more awareness about the possibilities of the technology and certainly caused a lot of press coverage. But it also generated several questions from many manufacturers who are eager to get to market. Anticipating that scenario, I scheduled an interview with Chuck Sabin to discuss the Bluetooth SIG's perspective of the roadmap for LE Audio and Auracast.

Bose Redefines Air Conduction with Ultra Open Earbuds

February 16, 2024 by Joao Martins

Bose Redefines Air Conduction with Ultra Open Earbuds

The result of an intense research effort to achieve the most effective approach for an open ear design, Bose just introduced the all-new Ultra Open Earbuds, a completely new form-factor. Described as "a breakthrough audio wearable" the Bose Ultra Open Earbuds are designed to let users hear the world while still enjoying music. The approach is to use air conduction to feed audio to the inside of the ear, while resting on the lower ear. OpenAudio delivers the air conduction, while signal processing adds Bose Immersive Audio to enhance the experience.

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