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FROM THE EDITOR’S DESK—Wireless and Wired, by J. Martins, p. 4
MARKET UPDATE—Installation, Distributed Audio, and Multiroom, by J. Martins, p. 8
Proof Is in the Testing, by Adrián Lara Moreno and Christian Bellmann, p. 24
MARKET UPDATE—Improving Wireless Audio (Part 2): Evolution and Exciting Perspectives, by J. Martins, p. 30
Using Ultra-Wideband Technology: Wireless Delivery of Audio and Multimedia, by Frederic Nabki, Nicolas Paillusseau, and Ronald Rinkenbach, p. 40
An Approach to Designing RIAA Networks, by John Ellis, p. 44
The LNA-100: A Low Noise Amplifier with Filters and a RMS Voltmeter, by George Ntanavaras, p. 50
Power Transformer Parameters, Selection, and Testing (Part 2): Transformer Cores and Their Construction Methods, by Chuck Hansen, p. 58
HOLLOW-STATE ELECTRONICS—Unusual Tubes, by Richard Honeycutt, p. 64

Installation, Distributed Audio, and Multiroom

Following the previous Market Update on residential integration, audioXpress explores the latest audio installation trends and solutions. Complementing the residential perspective, the article also addresses the latest audio multiroom approaches and technologies, an area that is clearly on the verge of serious evolution in 2023.

2 mins

Take the Lead in Acoustics with COMSOL Multiphysics®

Multiphysics simulation drives acoustics innovation by providing insight into every design aspect that influences product performance. The ability to account for coupled physics phenomena lets you predict, optimize, and virtually test a design under realworld conditions - even before a first prototype is built.

10+ mins

The Proof Is in the Testing

The Klippel Near Field Scanner (NFS) System was used for the development of Holoplot's X1 Matrix Array compensation algorithms, which was the topic of an article in the September 2022 issue of audioXpress. This joint article by Holoplot and Klippel offers a deep dive into the one of the many benefits of the innovative technology from the Berlin, Germany-based company.

9 mins

Improving Wireless Audio

Part 2 Evolution and Exciting Perspectives, Even though key technologies remain in development, wireless audio evolution beyond Bluetooth offers some very promising perspectives to the industry. Let's look at the efforts and the most promising platforms and technologies for wireless audio.

10+ mins

Using Ultra-Wideband Technology Wireless Delivery of Audio and Multimedia

For tomorrow’s audio and AR/VR devices, Ultra-Wideband UWB) technology provides high throughput, low latency, and low power connectivity for body and personal area networks—even in congested environments. UWB complements Bluetooth and Wi-Fi with high-performance and mobile-friendly short-range wireless connectivity.

7 mins

The LNA-100 A Low Noise Amplifier with Filters and a RMS Voltmeter

This project describes the design and construction of the LNA-100 device, which comprises a low noise, high gain amplifier with three different gain settings, six filters for bandwidth restriction, and a True RMS voltmeter that gives a DC voltage at its output.

10+ mins

Power Transformer Parameters, Selection, and Testing

Part 2 Transformer Cores and Their Construction Methods,  In the second part of this article series, Chuck Hansen details the history of transformer cores and shares information about their various construction methods.

8 mins

Unusual Tubes

Most aficionados of hollow-state electronics—at least most of the people reading this column—are familiar with the tubes most commonly used in classic or contemporary audio amplifiers. In this article, we explore some of the less common tube types used for audio applications.

6 mins

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audioXpress Magazine Description:

Step into the realm of audio, sound technology, and the latest developments in the field with audioXpress Magazine. We're delighted to introduce you to this publication, your ultimate source for all things related to audio, audio equipment, and the art of sound reproduction.

audioXpress Magazine, published by KCK Media Corp., is not just a magazine; it's your portal to the world of audio and sound technology.

As you explore the pages of audioXpress Magazine, you'll find a world of content that celebrates the magic of sound and audio technology:

* Audio Equipment: Dive into the world of audio gear, equipment reviews, and the latest advancements in the industry.
* Sound Technology: Explore the science of sound, audio engineering techniques, and the art of sound reproduction.
* DIY Audio: Learn about do-it-yourself audio projects, audio kits, and tips for crafting your own sound systems.
* Industry Insights: Stay informed about the latest trends, innovations, and news in the audio and sound technology field.
* Music and Sound: Immerse yourself in the world of music, audio production, and the stories of sound enthusiasts.


audioXpress Magazine is your essential resource for celebrating the magic of sound, understanding audio technology, and connecting with a community that values the science and art of sound. Subscribe now and become part of a community that appreciates the power of sound and music.