Full-Range Loudspeaker Industry Coverage in Voice Coil April 2021

The April 2021 edition of Voice Coil is now available and combines a wide range of topics for loudspeaker industry professionals. Starting with "Practical Considerations for Quality Control Testing of Loudspeakers," to an overview of innovations in wires and connectors, and a directory of cable and connector vendors. And, Vance Dickason looks at two compression drivers matched with factory-supplied horns - the ND1TP from Eighteen Sound and the CD-11Nd from Acustica Beyma. Now available in print and digital.

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!

In this edition of Voice Coil, Steve Temme explains "How to Measure Free-Field Speaker Response without an Anechoic Chamber," Mike Klasco writes about "Plastics and Composites for Audio Products in 2021," and there's an updated Speaker Enclosure Vendor Directory. James Croft provides a fascinating patent review of a speaker assembly design for low-frequency control using an acoustic dipole. And Vance Dickason characterizes two new tweeters: the D2404 Ellipticor Tweeter from Scan-Speak, and the Satori AT60NC-4 AMT Tweeter from SB Acoustics. Now available in print and online!

For this edition of audioXpress, start with our valuable Market Update on Audio Test and Measurement, followed by an interview and guided tour of QuantAsylum. From a practical perspective, Stuart Yaniger shares his experience with the latest version of Virtins Multi Instrument Measurement Software, Michael Steffes explains how to explore an interesting composite amplifier structure for great results, Mike Meechan continues his series on microphone preamplifier design, and Ethan Winer explains how to avoid too much wiring in large designs. Another great edition of audioXpress, now available to read in print and online.

The February 2021 edition of Voice Coil offers an overview of the Cone Industry in 2021, with an updated directory of loudspeaker cone, diaphragms and suppliers of relevant materials and components. Next up, James Croft reviews an interesting patent for a "Directional Loudspeaker," claimed by Dutch & Dutch BV, and Vance Dickason focuses his measurements on two small-sized drivers, typical of today's most popular consumer products. The first in Test Bench is the Wavecor FR070WA05, a 2.75" aluminum cone full-range driver, and the second is the AUGWL0006-JN01, a new 2.25" woofer from Eastech’s Punktkilde lineup.

audioXpress February 2021 explains why Microphones have gained Essential Status, and how microphones have a foundational contribution to voice front-ends. Erica Yorga details how Thousands of Virtual Microphones can solve audio conferencing challenges, and Mike Meechan explains how to design high-performance microphone preamplifiers. Brent Butterworth reviews the Widex Moment mRIC RD hearing aids to understand the differences and similarities in the critical sound experience. Michael Steffes explains how to increase the output current for an audio op-amp, and Andrew C. Russell details the X-Altra, a high-performance MC/MM phono equalizer DIY project. Now available in print and digital.

We looked at the most-read articles of 2020 in audioXpress.com (which also includes selected articles from Voice Coil magazine), and we created this Top 10 list of news stories and online articles. 2020 was another record-breaking year for audioXpress.com, with visitors from all over the world returning often to read the more than 6,600 stories available. Which of the topics and stories published online in 2020 were the most popular? Here are the results!

Looking forward to serving the loudspeaker industry for another year, Voice Coil starts strong with a focus on Headphone OEM Devices and Parts, and a Spotlight article on speaker design, written by Brian Cho, the CEO of Resonado Labs. In his first Acoustic Patents column for 2021, James Croft writes about a signal processing system, allowing users to control a lower frequency acoustic range of a loudspeaker system, and Vance Dickason kicks off his Test Bench characterizations with the new Bold North Audio BWX-6502 Midbass, and the Wavecor TW022WA09 22mm textile dome tweeter.

Celebrating 50 years of The Audio Amateur - the publishing company that started it all for us - and 20 years of audioXpress, we begin 2021 with a great - and expanded - edition. We discuss market and technology trends in Speakers and Transducers, a new MEMS transducer topology for wireless earbuds, and the latest innovations in haptic drivers and transducers. Perry Marshall details his unique dipoles speaker project, and renowned tube expert Menno van der Veen explains all the secrets of the latest Vanderveen Trans-SE10 amplifier. Now available in print and digital

Voice Coil December 2020 offers a diverse set of articles for loudspeaker professionals and anyone in the audio industry. Mike Klasco writes about MEMS Drivers and related hot technologies for 2021. Next up, James Croft discusses a new patent granted in October 2020 to inventor Eric Jay Alexander, and in Test Bench, Vance Dickason characterizes the recent BWX-6501 Midbass driver and the BDT-2901 Silk Dome Tweeter, both from MISCO’s Bold North Audio Line. Now Available in Print and Download!