All items tagged with Mike Klasco (183)

Headphone Testing and Lots of Speaker Knowledge in Voice Coil June 2022

May 27, 2022 by audioXpress Staff

Headphone Testing and Lots of Speaker Knowledge in Voice Coil June 2022

Another great issue of Voice Coil magazine. Vance Dickason writes about the Multi-Tone Measurement Module (MTON) available for the Klippel KA3 Analyzer. Mike Klasco and Nora Wong (Menlo Scientific) compiled an updated Directory of Headphone Test & Measurement Equipment for 2022. We revisit a 2004 patent of a speaker using an "Internal Negative Stiffness Mechanism." And in Test Bench, Vance Dickason characterizes the latest Celestion CDX1-1412 1" Compression Driver and a new 3" dome midrange from Tang Band Speaker (TB Speaker).

April 13, 2022 by Mike Klasco and Salvador Magdaleno-Adame

Next-Generation Rare-Earth-Free Magnets Are Coming

When a speaker development project is initiated, one of the first decisions is usually the magnet type — ferrite or neodymium — each one with its associated benefits, and problems. This article introduces the most promising alternative based on Iron Nitride (FeN), soon be available from Niron Magnetics, and offering the best characteristics of neo, without the supply chain drama, at a price point that rests somewhere between ferrite and neodymium. This article was originally published in Voice Coil, January 2022.

Stay on Top of Loudspeaker Industry Developments with Voice Coil April 2022

March 29, 2022 by audioXpress Staff

Stay on Top of Loudspeaker Industry Developments with Voice Coil April 2022

Voice Coil April 2022 is now available and brings an interesting overview of the latest updates to Loudsoft's FINE Suspension Nonlinear FEA Spider and Surround Design software. Mike Klasco discusses Cables, Lead Wires, and Connector/Terminal Technology, and there's an updated directory of vendors and manufacturers in those product segments. Then, Vance Dickason characterizes the AMT 23CM1.1-C Air Motion Transformer from Mundorf, and the Beyma CD1ND 1" Polyimide Diaphragm Compression Driver and TD-194 compact horn.

Voice Coil March 2022 Focus on Speaker Enclosures

February 28, 2022 by audioXpress Staff

Voice Coil March 2022 Focus on Speaker Enclosures

The March 2022 issue of Voice Coil offers a complete overview of loudspeaker cabinet design options, plastic enclosure materials, and production techniques, as well as an updated directory of Speaker Enclosure Vendors. This month, in Test Bench, Vance Dickason characterizes the Mundorf U80W from its latest U Series of Air Motion Transformers. And addressing demanding professional audio applications, this issue also includes a Test Bench on Eighteen Sound’s NSD1095N Compression Driver and XT120 Horn. Start reading online. Printed copies are on the way.

audioXpress February 2022 Captures the Sound of Today

January 11, 2022 by audioXpress Staff

audioXpress February 2022 Captures the Sound of Today

The February 2022 edition of audioXpress is now available and features our annual Market Update on Microphone technology. Vikrant Singh Tomar discusses TinyML and Voice Recognition Technology On the Edge, Richard Honeycutt writes about Quantification of Speech Intelligibility, and Mike Klasco expands on audio applications for Haptic Devices. George Ntanavaras builds a phono and line/headphone amplifier project, Brian Bylenok proposes a refined Current Feedback Headphone Amplifier, and Richard Honeycutt reminds us that Tube Power Amps also have Classes. Now available in print and online.

New Speaker, Headphone, and Earphone Perspectives with Voice Coil January 2022

December 29, 2021 by audioXpress Staff

New Speaker, Headphone, and Earphone Perspectives with Voice Coil January 2022

We're off to a great start in 2022. Starting with details about the promise of Iron Nitride (FeN) magnets, followed by an article about Liquid Injection Molding Silicon for Next-Generation Headphone Surrounds. Next up, James Croft reviews a surround speaker patent granted to Klipsch, and Vance Dickason characterizes the Satori MW13TX-4 TPCD-cone woofer from SB Acoustics and the high-power WF275BD01 10.75" woofer from Wavecor. All articles now available to read online, PDF and print.

Celebrate 35 Years of Voice Coil with the November 2021 Edition

October 26, 2021 by audioXpress Staff

Celebrate 35 Years of Voice Coil with the November 2021 Edition

This edition celebrates 35 years of Voice Coil, the Periodical for the Loudspeaker Industry. We discuss a new earphone technology for Balanced Frequency Range, Mike Klasco writes about Subwoofers and Bass, and James Croft reviews a new loudspeaker patent from Tymphany. Finally, Vance Dickason places Purifi Audio’s PTT4.0X04-NFA-01 Home Audio Midbass, and Eighteen Sound’s AMT200P AMT driver and XMT200 waveguide on the Test Bench. Now available in print or download.

SEAS: The History of SEAS Fabrikker - A Loudspeaker History Book

September 2, 2021 by Mike Klasco

SEAS: The History of SEAS Fabrikker - A Loudspeaker History Book

A New Must-Read Loudspeaker History Book. SEAS: The History of SEAS Fabrikker is an engaging story about the Norwegian manufacturer and its place in the Nordic speaker industry. The book about Scandinavian Electro Acoustic Systems (SEAS) was written by Danish loudspeaker engineer Claus Futtrup and jointly published by SEAS and Futtrup. Mike Klasco reviews the book for The Audio Voice newsletter and audioXpress.

Audio Product Education Institute Discusses Automotive Audio Supply Chain Challenges

August 28, 2021 by audioXpress Staff

Audio Product Education Institute Discusses Automotive Audio Supply Chain Challenges

The AES Audio Product Education Institute (APEI) promotes an online event to discuss the challenges in the automotive supply chain, specifically in the perspective of those companies and professionals working in automotive audio and acoustics. The event, Wednesday, September 1 (12pm EDT), will outline the evolution and growing product development requirements for automotive audio, while APEI's education pillars experts will share lessons learned from suppliers and actual cases.

Roboden Elastic Cable - A Great Idea Finally at a Reasonable Price

July 8, 2021 by Mike Klasco

Roboden Elastic Cable - A Great Idea Finally at a Reasonable Price

An elastic cable? Roboden is a unique stretchable cable for microphones and headphones. It expands up to 40% longer, has low microphonics, and looks and feels premium! Mike Klasco writes about it, now that Hightek, an OEM cable manufacturer from Taiwan has licensed the technology. Finally, stretching cables are in the BOM range of quality consumer electronics products. This article was originally published in The Audio Voice newsletter, July 2021.

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