Voice Coil November 2022 Celebrates the Loudspeaker industry

Happy 36th Anniversary Voice Coil! The November 2022 issue of Voice Coil once again celebrates the launch of this periodical as an information resource for the loudspeaker industry. Also, this month, Mike Klasco writes about technologies and solutions to enhance low-frequency performance, and James Croft reviews a recent patent awarded to Panasonic for a loudspeaker arrangement for a Near to the Ear Subwoofer in a car seat. For this month's Test Bench, Vance Dickason characterizes the 6CXN36 coaxial 6.5” pro sound driver from B&C Speakers, and Wavecor’s FR4X-6WA01 compact oval full-range driver. Now available in print, digital and online.

James Croft reviews another patent of a concept ignoring abundant prior art, which apparently wasn’t scrutinized by industry experts - as it should. The patent "Dynamic Acoustic Waveguide," was awarded to William Eugene Wheeler (High Ridge, MO) as inventor and assignee, and describes a “loudspeaker and a method of operation that allow for the production and emphasis of extremely low bass tones.

audioXpress' November 2022 cover highlights this year's Speaker Design Competition, an extensive Market Update on Wireless Audio technology and two articles addressing Digital Signal Processing techniques. Frans de Wit explains the real improvements that can be achieved on power supply design for high-end audio systems, and Chuck Hansen opens up a valuable series on Power Transformers for audio electronics. Finally, Scott Dorsey visits the Lundahl Transformers factory in Sweden, while Richard Honeycutt revisits Voltage Regulator (VR) Tubes used in Audio Amplifiers.