Brane Audio RAD Speaker Technology Named in TIME’s Best Inventions of 2024

As TIME revealed its annual list of the Best Inventions, which features 200 product, technologies and innovations changing our lives, there was a surprising mention of Brane Audio's Brane X portable speaker as a winner in the Entertainment & Gaming category. As audioXpress and Voice Coil readers learned earlier - and coincidently James Croft writes about in Voice Coil November 2024 - the company's Repel-Attract-Driver (RAD) that is part of the Brane X design, is indeed the first effective embodiment of a negative-spring woofer that bends Hofmann’s Iron Law.

In Voice Coil November 2024, Anthony Caiazzo details Countervail's patented fiber-reinforced composite technology, Mike Klasco revisits solutions to achieve increased bass response, while James Croft reviews two patents from Clean Energy Labs and Brane Audio that seem to have finally broken Hofmann's Iron Law. In Test Bench, Vance Dickason characterizes the new MT19CP-8 7.5" coaxial driver from SB Acoustics' prestigious Satori line.

In the first issue of Voice Coil for 2024, Patrick Turnmire writes about "Diagnosing Speaker Design Issues Using the Klippel Distortion Analyzer." James Croft reviews a Devialet patent. And in Test Bench, Vance Dickason characterizes the new DE350-8 Ultra-Compact 1" Compression Driver from B&C Speakers, and the new LM10n Wide Band Ribbon Transducer from Radian Audio Engineering. This issue also features an updated directory of 2024 Earphone and Headphone Manufacturers and Parts Suppliers.

Brane Audio, an audio company from Austin, Texas, is introducing a new portable speaker at CES 2023 which the company says is able to generate expanded low frequency response. The Brane X is the first speaker in its class to include a subwoofer, producing much more bass than comparable portable speakers thanks to the company's new Repel-Attract Driver (R.A.D.) that uses a novel "magnetic negative spring" supported by an axial magnetic bearing system. Brane Audio is offering private demos of its new speaker during CES.

Having reviewed previously one of the early Mayht Holding B.V. patents covering their general bipolar, interleaved multiple motor structure architecture, James Croft reviews the most recent US publication (2022). This one addresses the most dramatic claim for the Mayht transducer technology of the ability to provide a greater-than 10x reduction in enclosure volume, while maintaining the same efficiency and bandwidth as compared to the current state of the art. This article was originally published in Voice Coil, August 2022