All items tagged with Mike Klasco (188)

Voice Coil Focus: A Fresh Take on Green Audio 2023

June 14, 2023 by Mike Klasco

Voice Coil Focus: A Fresh Take on Green Audio 2023

Good intentions for sustainability, circularity, or simply reducing your carbon foot-print in the development or manufacturing stages not always produces the intended results. Mike Klasco reminds us how things are not always as simple as we would like, and that having good intentions and throwing empty claims might work on paper, but not actually work in the real world.

Voice Coil Focus: Acoustical Characteristics of Adhesive Joints and Cone Treatments

April 18, 2023 by Mike Klasco and Steve Tatarunis

Voice Coil Focus: Acoustical Characteristics of Adhesive Joints and Cone Treatments

There seems to be a lack of consideration and understanding of the acoustical characteristics of the loudspeaker’s many glue joints. In this article for Voice Coil, Mike Klasco and Steve Tatarunis detail how the influence and use of glue joints and diaphragm treatments can be used as a design tool. The report also details some significant new material options and design and measurement tools available. This article was originally published in Voice Coil, July 2017.

Speaker Enclosures and Cabinets in Voice Coil March 2023

February 28, 2023 by audioXpress Staff

Speaker Enclosures and Cabinets in Voice Coil March 2023

In this issue of Voice Coil, Mike Klasco shares his experience dealing with sustainability and other noble goals, an article that was greatly inspired by the effort to compile another updated Speaker Enclosure Vendor Directory for 2023. In Acoustic Patents, James Croft explains how Yamaha recently invented a clever way to use a Class-D amplifier to bend the infamous "Hofmann’s Iron Law." And Vance Dickason takes the new 10HX230 10" coaxial professional driver from Faital Pro to his Test Bench.

SonicEdge MEMS Ultrasound Speaker-In-Chip: Next Gen MEMS for TWS Earbuds and Hearing Aids

February 24, 2023 by Mike Klasco

SonicEdge MEMS Ultrasound Speaker-In-Chip: Next Gen MEMS for TWS Earbuds and Hearing Aids

Mike Klasco writes all about the cutting-edge SonicEdge MEMS Ultrasound Speaker-In-Chip. A next-gen MEMS solution for TWS earbuds, hearing aids, and hearables. Entering production in 2023, this unique ultrasonic shutter MEMS-based speaker system represents a decade's work in a unique topology. The core of the design is one or more apertures driven by the ultrasonic carrier signal and one or more movable and over-sized obstruction elements that are configured to modulate the ultrasonic carrier signal (think of a shutter) thereby generating audio.

audioXpress February 2023 Now Available! What Do You Want to Hear?

January 12, 2023 by audioXpress Staff

audioXpress February 2023 Now Available! What Do You Want to Hear?

audioXpress February 2023 focuses on the small devices in the increasingly larger market of MEMS Microphones and Voice Pickup Sensors. The Market Update on this topic is complemented by Erica Yorga's article on the principles of Nureva's Unified Coverage Map. Ethan Winer offers the first of a primer on modern PC board design, there's a review of the Arylic Audio Up2Stream Amp V4 board, an inside story on how Crestron adopted AES67, and a High-Performance Tube Hybrid Preamp DIY project.

Find the Best Way to Kickstart Your Audio Developments in audioXpress January 2023

December 12, 2022 by audioXpress Staff

Find the Best Way to Kickstart Your Audio Developments in audioXpress January 2023

Multiple perspectives to inspire you in the new year. A Market Update on Bone Conduction Transducers, an article on the development of the Taction Transporter haptic transducer, and a valuable article by Hans W. Gierlich explaining an effective approach for testing structure-borne sound applied to in-ear developments. Andrew Bellavia writes about why the FDA’s OTC hearing aid rule could be quickly obsolete, Adam Levenson introduces the new Audio Foundry automotive audio development platform, and René Christensen makes its debut with audioXpress, writing about simulation techniques

Voice Coil Focus-Audio Manufacturing Sourcing: The Philippines

December 1, 2022 by Mike Klasco

Voice Coil Focus-Audio Manufacturing Sourcing: The Philippines

Loudspeaker manufacturers need to multiply their efforts to make their supply chains more resilient, and it becomes important to know alternative suppliers in multiple regions of the world. Among the established alternatives in the Pacific region, The Philippines has been a long recognized location for reliable companies, including some of the world's leading OEM/ODM suppliers. The article, originally published in Voice Coil, August 2022, includes a small directory of audio factories in the Philippines.

Voice Coil December 2022 Improves Loudspeaker Measurements

November 29, 2022 by Joao Martins

Voice Coil December 2022 Improves Loudspeaker Measurements

Voice Coil December 2022 features an updated directory of Measurement Microphones Vendors, Mike Klasco writes about how to Enhance Low-Frequency Performance, and Vance Dickason reminds us that there is a more realistic way to map speaker resonances. Test Bench characterizes two tweeters from Beyma's new Near and Mid Field (NMF) series: the T-25M 1" aluminum/magnesium alloy metal dome tweeter, and the similar T-25S 1" silk dome tweeter.

Voice Coil November 2022 Celebrates the Loudspeaker industry

October 28, 2022 by audioXpress Staff

Voice Coil November 2022 Celebrates the Loudspeaker industry

Happy 36th Anniversary Voice Coil! The November 2022 issue of Voice Coil once again celebrates the launch of this periodical as an information resource for the loudspeaker industry. Also, this month, Mike Klasco writes about technologies and solutions to enhance low-frequency performance, and James Croft reviews a recent patent awarded to Panasonic for a loudspeaker arrangement for a Near to the Ear Subwoofer in a car seat. For this month's Test Bench, Vance Dickason characterizes the 6CXN36 coaxial 6.5” pro sound driver from B&C Speakers, and Wavecor’s FR4X-6WA01 compact oval full-range driver. Now available in print, digital and online.

New Thin-Film Technologies for Coatings and Treatments

October 12, 2022 by Mike Klasco

New Thin-Film Technologies for Coatings and Treatments

This article provides a valuable overview of the latest Thin-Film Coatings and Treatments solutions that are available in the market. Highlights include a new a state-of-the-art REACH-compliant CVD coating process from Oerlikon Surface Solutions, applicable on multiple substrates, such as aluminum, titanium, PEEK, and composites, and Nanovate, a metallurgical nano-coating technology based on electrodeposited nano crystalline structural metal from Integra. The report also highlights Antiviral/Antimicrobial Coatings from Integran, Kastus Technologies, and Nanowatt, among others. This article was originally published in Voice Coil, July 2022.

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