All items tagged with George Ntanavaras (27)

audioXpress May 2021 Celebrates Its Glass Audio and Audio Electronics Roots

April 12, 2021 by audioXpress Staff

audioXpress May 2021 Celebrates Its Glass Audio and Audio Electronics Roots

Our May 2021 Glass Audio Special edition is certain to inform and inspire you. We reveal what is happening at Western Electric's new Rossville Works in Georgia, where production of 300B tubes is ongoing, we explain how to draw tube load lines, and we offer a valuable preamplifier design that enables you to compare the sound of tube and solid-state circuits from the same audio source. There's also a versatile stereo tube amplifier design to build, and plenty more audio electronics theory and practice in this edition. Now available online and in print.

audioXpress April 2021 Looks Ahead at the Evolution in Voice, Communication and True Wireless

March 11, 2021 by audioXpress Staff

audioXpress April 2021 Looks Ahead at the Evolution in Voice, Communication and True Wireless

The April 2021 issue of audioXpress is now available in print and online and it addresses a convergence of technologies in two of the most exciting product segments at the moment: True Wireless Earbuds and Voice & Communication. George Ntanavaras explores vibration measurements using piezoelectric sensors, Jens Tybo Jensen describes a highly efficient hybrid bass amplification design, and Richard Honeycutt discusses how horns have evolved to address sound directionality. And much more top-level audio electronics from top experts in the field. Get Your Copy Now!

audioXpress September 2020 Speaker Focus Edition Is Now Available!

August 10, 2020 by audioXpress Staff

audioXpress September 2020 Speaker Focus Edition Is Now Available!

Our always popular loudspeaker edition is now available online and in print! audioXpress' Speaker Builder, Speaker Focus edition covers loudspeaker building, design, and testing with a balanced amount of DIY, speaker history, theory, R&D, and manufacturing articles. Read two articles about speaker history, a review of the Magnepan LRS, explore the details of two amazing speaker builds, and learn how to do loudspeaker measurements at home. And there's much more in speaker research and development, measurement, and production!

Focus on Acoustics and the Best in Audio with audioXpress August 2020!

July 10, 2020 by audioXpress Staff

Focus on Acoustics and the Best in Audio with audioXpress August 2020!

From audio development and product design to acoustics! Read the Acoustic Solutions Round-Up and expert articles. Check out the NAD M10 Masters Series Streaming Amplifier review, then learn about Sound Liaison, a recording label translating live acoustical recordings in the best possible quality. Jan Didden reflects on "The Internal Life of Vacuum Tubes," and George Ntanavaras introduces his APR-17 Aperiodic Loudspeaker design. audioXpress August 2020, Focus on Acoustics, is now available in print and digital.

You Can DIY! The TSM-100 - A Turntable Speed Measurement Device

June 24, 2020 by George Ntanavaras

You Can DIY! The TSM-100 - A Turntable Speed Measurement Device

In this article, George Ntanavaras explains how to build a turntable speed measurement device using a microprocessor-controlled device that measures the speed of a turntable's platter. The project uses an Arduino board and the Arduino software IDE, and a micro sensor manufactured by Omron to sense the platter rotation. This article was originally published in audioXpress, June 2018.

audioXpress September 2019 Speaker Focus Edition Now Available

August 8, 2019 by audioXpress Staff

audioXpress September 2019 Speaker Focus Edition Now Available

The September edition of audioXpress is our always popular Speaker Builder - Speaker Focus edition. Once again, audioXpress focuses on loudspeaker building, design, and testing and for this issue we have combined two great DIY articles with a review of the PureAudioProject Trio15 Heil AMT speaker system. Ward Maas reports from the High End 2019 show in Munich, Jan Didden met with Purifi Audio's Bruno Putzeys and Lars Risbo and comments on the company's research, and much more.

Power for All Audio Needs with audioXpress July 2019!

June 10, 2019 by audioXpress Staff

Power for All Audio Needs with audioXpress July 2019!

For our July 2019 edition, audioXpress focused on audio amplification technologies and platforms, including a Market Update on Audio Amplifiers. Eric Eklund writes about Smart Power Audio Amplifiers for Smartphones, and Ward Maas discusses Powersoft's OEM amplifier modules. Read the reviews on the Dayton Audio HTA20BT Hybrid Stereo Tube Amplifier, and on Sonarworks’ True-Fi Software, learn about control and monitoring user interfaces for AoIP, and much more. Download your edition now!

The Latest Technology Updates and Smart Designs in audioXpress June 2019

May 9, 2019 by audioXpress Staff

The Latest Technology Updates and Smart Designs in audioXpress June 2019

audioXpress June 2019 includes a comprehensive market update on Working with USB-C, What Audio Developers Need to Know. Ethan Winer explains how he designed and built a Null Tester, and George Ntanavaras shares his Sigma 100 Satellite/Subwoofer loudspeaker project. Richard Honeycutt explains “How to Work With an Acoustical Consultant,” and Shannon Becker talks to Bradley Pfeifer about how “Made in USA” audio product manufacturing is making a comeback.

Welcome to 2019 and Start Strong with audioXpress!

December 11, 2018 by audioXpress Staff

Welcome to 2019 and Start Strong with audioXpress!

The January 2019 (CES) edition of audioXpress has arrived. Read our Microphone Market Update, addressing the latest cutting-edge microphone technologies, and learn how Zylia created its ZM-1 spherical microphone array. Also in this edition, Joe D’Appolito explains how to address the equalization of closed-box subwoofers, Hans W. Gierlich writes about testing Smart Home Devices, David Logvin reviews the Lepai LP40PA plate amplifier, and George Ntanavaras describes a stereo analog preamplifier DIY project. Oh, and read Erik Owen's unique take on Rocky Mountain Audio Fest (RMAF) 2018.

The MC100 - A High-Quality Moving Coil RIAA Preamplifier

October 31, 2018 by George Ntanavaras

The MC100 - A High-Quality Moving Coil RIAA Preamplifier

In this project article for audioXpress, George Ntanavaras describes the design and construction of a high-quality RIAA preamplifier for moving coil cartridges based on high-quality Analog Device AD797 op-amps designed for low-noise audio applications and driven from very low source impedance. This article was originally published in audioxpress, March 2014.

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