Patent Review: A Speaker Device Offering Extended Bass Performance

This review discusses an intriguing speaker design patented by Walter Ka Wai Chu, from Taiwan. The design allows the speaker device to potentially improve the bass performance in the entire low-frequency band instead of being limited to only a few low-frequency points, the inventor claims. While James Croft confesses to being somewhat skeptical of whether, in its current disclosed form, the device will provide a useful advantage, he found the design sufficiently interesting to be analyzed in more detail.

An excellent article from the audioXpress archive, published originally in February 2003, James Moriyasu offers a complete study examining speaker cabinet edge diffraction and what we can do to reduce it. The author attempts to measure the extent of acoustic edge diffraction and test possible solutions for reducing its levels

Definitely a first. English brand Bowers & Wilkins was never a conventional speaker manufacturer, always venturing into new areas, from being a record company, with its B&W Music label, to sponsoring music festivals and, in recent years, trying multiple digital lifestyle product segments. Now, B&W decided to create a Sound System for music events. Not for sale, at least for now…

The new MRmk3 Series Studio Monitors were among the highlights when Mackie recently refreshed the line. The MRmk3 Series includes three affordable, professional monitors with optimized electronics and custom-matched amplifiers/drivers, complemented by a powerful subwoofer (MR10Smk3). Featuring custom-tuned ports and …

Member Name: Dennis L. Green Location: Farmington Hills, MI Education: BSEE Occupation: Retired Member Status: Dennis has been a subscriber since the first issues of Audio Amateur and Speaker Builder. He switched to audioXpress after their demise, mostly for the …