All items tagged with voice coils (12)

Get It in Motion with Voice Coil August 2025

July 30, 2025 by audioXpress Staff

Get It in Motion with Voice Coil August 2025

In this issue, Jonathan Gerbet explains everything we need to know about the next-generation of Klippel's Fast Large Signal Identification (FLSI) measurement tool. And as scheduled, Mike Klasco prepared a valuable directory of Voice Coil Winders, plus a subdirectory with Converters, Lead Out Wire, and Magnetic Fluid suppliers. For this month's Test Bench, Vance Dickason characterizes the new 10NTLW2500 Pro Sound Tetracoil midbass woofer from Eighteen Sound, followed by the UMII12-22 subwoofer from Dayton Audio's new Ultimax II line.

Enhancing Loudspeaker Efficiency and Bl(x) Symmetry with Virtual Voice Coil, Part 2

June 11, 2025 by Dario Cinanni

Enhancing Loudspeaker Efficiency and Bl(x) Symmetry with Virtual Voice Coil, Part 2

This is the second article detailing the design and simulation possibilities of the SpeakerLAB software and its Virtual Voice Coil (VVC) module for speaker designers. This simulation includes complete temperature management involved in loudspeaker calculus. The article also expands on audio transducer parameter prediction such as maximum SPL, analyzes key design components such as the magnetic circuit, and analyses the resulting simulated metrics that could help determine the highest efficiency.

Enhancing Loudspeaker Efficiency and Bl(x) Symmetry with Virtual Voice Coil, Part 1

June 4, 2025 by Dario Cinanni

Enhancing Loudspeaker Efficiency and Bl(x) Symmetry with Virtual Voice Coil, Part 1

This first article in a two-part series details the design and simulation possibilities of the SpeakerLAB software for speaker designers. In this article, the author explores its Virtual Voice Coil (VVC) module, for designing voice coils and predicting audio transducer parameters with maximum accuracy. The detailed analysis also explains one of the keys that allow the accuracy of VVC prediction, given by a complete temperature management involved in loudspeaker calculus.

Voice Coil Focus: New Materials and Technologies for Voice Coils

November 13, 2024 by Mike Klasco

Voice Coil Focus: New Materials and Technologies for Voice Coils

In this article Mike Klasco shares his extensive knowledge about voice coils, and how this critical part of loudspeaker technology has evolved - the result of decades of walking factory floors all over the world . As noted in his introduction, "Winding some wire into a coil should be simple enough and after a century of loudspeaker manufacturing, there shouldn’t be any new surprises. But voice coil materials, process control, and topology continue to evolve and here we discuss half a dozen noteworthy new tricks."

Manger Audio Introduces the Next Generation of Its Star-Shaped Bending Wave Transducer

June 21, 2024 by Joao Martins

Manger Audio Introduces the Next Generation of Its Star-Shaped Bending Wave Transducer

Manger Audio, the specialized speaker manufacturer from Mellrichstadt, Germany, announced the sixth generation of its globally recognized star-shaped transducer, the W06. The Manger driver works on the principle of bending waves, featuring a flat, flexible diaphragm, and unique coil assembly. In its six major redesign, the Manger W06 transducer now features an optimized motor, new damping system, and a new chassis design, delivering improved linearity, lower distortion, and even more impressive dynamics.

Patent Review: Multi-Layer Voice Coil Plate and Flat-Type Speaker Comprising the Same

June 19, 2024 by James Croft

Patent Review: Multi-Layer Voice Coil Plate and Flat-Type Speaker Comprising the Same

In this patent review, James Croft (Croft Acoustical) looks closely at a new patent of a multilayer voice coil plate and a flat speaker including the same type of multilayer voice coil plate, granted to three inventors from South Korea, on behalf of ICUBES Co., Ltd., Gyeongi-do, Korea. Detailing multiple configurations of this interesting concept, this patent offers an interesting take on the quest for the realization of a high-performance, one way, full-range electrodynamic transducer.

Interview: An Afternoon with Robert Munnig Schmidt

June 12, 2024 by Jan Didden

Interview: An Afternoon with Robert Munnig Schmidt

Robert Munnig Schmidt is intrinsically connected with advanced motion systems and motional feedback applications. He is now retired from his own consultancy business, following an outstanding career that includes key R&D positions at Philips, being part of the ASML founding team, and teaching Mechatronic System Design at the Delft University of Technology. In this interview, Schmidt revisits the theory and practice of motional feedback, silicon wafer steppers, voice coils, Class-D amplifiers, and much more.

Stratton Acoustics Launches the Element 12 Loudspeaker

March 22, 2024 by audioXpress Staff

Stratton Acoustics Launches the Element 12 Loudspeaker

Stratton Acoustics, the UK-based manufacturer of the extremely original high-end Elypsis 1512 loudspeaker, inspired in the iconic, main studio monitors that shaped recording in the 1970s and 1980s, has now launched the Element 12, a smaller 2-way, reflex-loaded design with integral stand. The Stratton Acoustics Element 12 is a passive design that employs advanced driver technologies, crossover techniques, and enclosure construction, polished with a touch of artisanal refinement.

Patent Review: Dual Coil Electrodynamic Transducer with Channels for Voice Coil Cooling

March 20, 2024 by James Croft

Patent Review: Dual Coil Electrodynamic Transducer with Channels for Voice Coil Cooling

James Croft reviews a published design submitted on behalf of Harman International Industries on January 2017. The design details an important approach to solving the everlasting problems of heat generation that limits the power handling capacity and the distortion-free acoustic output capability of loudspeakers, as well as their efficiency as electroacoustical transducers. This article was originally published in Voice Coil, September 2018.

Advertise in the Loudspeaker Industry Sourcebook 2024!

March 1, 2024 by audioXpress Staff

Advertise in the Loudspeaker Industry Sourcebook 2024!

Part of the Loudspeaker Industry? Promote your business! Loudspeaker Industry Sourcebook is an indispensable resource for the audio industry OEMs, specifiers, and buyers. For 12 full months, purchasers and decision makers refer to the guide constantly in search of everything from drivers to finished systems, adhesives to domes, crossovers to voice coils, assembly to reconing, and every material, product and service in between. Advertise in the 2024 edition!

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