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.

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.

Campfire Audio announced Supermoon, the newest entry in their innovative line of custom-fit in-ear monitors for musicians, audio professionals, and discerning music lovers. This new model in Campfire’s extensive IEM catalog features a new 14mm full-range planar magnetic driver with a 2 micron thin diaphragm, in a hand polished 3D printed solid-body with stainless steel cap and custom beryllium / copper MMCX connections.

Estron introduced the new T2 Socket DS (Dual Spring), bringing its established T2 Connector System up in a league of its own with the potential to be a new standard 2 pole earphone connector system with an IP67 rating. While the entire T2 Connector System focuses on ease of use and to minimize wear on the connector system, the new T2 Socket DS is designed for improved durability and reliability, sustaining more than 10,000 insertions consistently.