speculative speakers by yamaha move diaphragm like a sail on strings

"Yamaha's Design Laboratory in Japan envisions prototypes for experimental speakers based on new structural approaches. The core concept sees speaker design minimize unwanted sound reflections from the tabletop surface and enhance sound quality by directing sound upward. The technology explores unconventional arrangements of tweeters and woofers that embody this concept, expanding beyond the formal and structural frameworks of traditional speakers with shapes like butterfly, crystal or, sail."

"sail's volume adjustment mechanism suspends and moves a diaphragm like a sail by strings four prototypes make up speculative speaker collection Four distinct prototypes make up the collection: Sail Concept explores the act of sound adjustment as an interactive experience. A sail-like diaphragm is suspended by strings and moved through a dedicated control mechanism, allowing users to physically engage with sound tuning."

Yamaha Design Laboratory in Japan creates experimental speaker prototypes that prioritize minimizing tabletop reflections and directing sound upward to improve sound quality. The designs investigate unconventional tweeter and woofer arrangements and depart from traditional speaker shapes by using forms like butterfly, crystal, and sail. An iterative refinement between technology and design produces visually distinctive units with novel auditory characteristics. The Sail Concept uses a suspended ROHACELL diaphragm moved by strings as an interactive volume-control mechanism. ROHACELL is a closed-cell rigid plastic foam with high mechanical strength, heat resistance, and thermoformability, making it lightweight, rigid, and suitable for speaker diaphragms. The Butterfly Concept positions units back-to-back facing a reflector and varies volume between inner and outer chambers to change spatial spread and character.

Read at designboom | architecture & design magazine