Loudspeaker Knowledge and Innovation in Voice Coil April 2024

In Voice Coil April 2024, Tom James reminds us about the importance of SPL Graph Data, and Mike Klasco revisits the fundamentals of speaker lead-out wire. As scheduled, there's an updated directory of Speaker Cable and Connector Vendors. James Croft explores a patent detailing a filter that may increase and extend the bass frequency response of a speaker. And for this month's Test Bench, Vance Dickason characterizes the Neotera Ultraflat UF 295 CBS 10" Subwoofer, followed by the SEAS W16NX005 5.25" Midbass Woofer with a metamodal TPCD diaphragm.

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Estron, the Danish manufacturer of high-quality wire, cable, and miniaturized connector solutions, showcased the company's newest solutions for hearing aids and audiology at the recent EUHA 2023 congress in Nuremberg, Germany. Making its debut was es-Hear, a complete off-the-shelf plug cable and RIC (Receiver-in-Canal) solution using a plug-and-play micro connection. And Estron showcased its latest multipole micro connector that supports its patent pending 8 conductor solution.

Voice Coil August 2023 offers the second part of Peter Larsen's FINE Circle speaker design tutorial, updated directories of Voice Coil Winders and Converters, and Magnet Vendors and Distributors for 2023. James Croft reviews a new Diaphragm patent attributed to Tymphany, and Vance Dickason offers a triple dose of Test Bench, starting with the Beyma 10NMFS 10" subwoofer, followed by the Wavecor WF182BD13-04 7" midbass woofer, and culminating in the Scan-Speak 18ME/9642T00 Ellipticor 6.5" Midrange.

August is traditionally the voice-coil-focused issue of Voice Coil, offering an always-valuable perspective on the state of the loudspeaker industry. In this issue, Mike Klasco discusses Audio Manufacturing in The Philippines, James Croft explores another key Mayht patent, and Vance Dickason measures and characterizes the B&C Speakers DE111-8 1" compression driver, and the MD60N-6 2.5” Dome Midrange from SB Acoustics' Satori line.

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.