Thursday, September 17, 2015
B&W ditched 40 years of engineering for a fresh start, and it sounds amazing
In the world of high-end audio, you could say that the best products are never good enough. It’s this constant desire for perfection that led Bowers and Wilkins to rethink its 40-plus years of sound engineering – essentially scrapping what it’s been doing, because whatever it was doing just wasn’t good enough.
“Revolutions can take time, but they’re worth waiting for,” says Stuart Nevill, B&W’s head of engineering.
Calling it the biggest launch in its history, the new 800 Series Diamond (DS3) is indeed a start from scratch, from the turbine head all the way down to the plinth. The hand-built speakers – crafted and tested by just 350 employees at B&W’s facility in Worthing, England – have similar profiles as their predecessors, but even the aesthetics – the positioning of the tweeter and turbine head – have been improved not just for looks, but better sound quality.
Kevlar, the basis for its midrange driver cones since the 1970s, has been replaced with a new material called Continuum that delivers predictable behavior through the frequency range, rather than Kevlar’s abrupt transitions that affect sound quality. The tweeter and turbine head are now made from a solid and heavy piece of aluminum, instead of granite-based Marlan, for rigidity; the tweeter’s new design is unaffected by cabinet resonance. The bass driver is made with a new Aerofoil cone that’s much stiffer where it’s needed, which helps control bass for accuracy.
The reverse wrap cabinetry has front and sides “formed of one continuous curve, held together with a spine of aluminum”; B&W says the curved front means less baffling around the drive units. The internal structure, or matrix, is now made of layers of plywood instead of medium density fiberboard (MDF), which, reinforced with metal, is stronger and minimizes resonance and cabinet reflection. The plinth, or foundation, has also been strengthened to reduce overall vibration. All this has been made possible thanks to advancements in 3D modeling and printing technologies.
“Diamond is the only thing that hasn’t changed,” Nevill says. The diamond dome, the only major component that’s been carried over, does use a new “acoustically transparent” grille.
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