Thomas J. Norton

Avengers: Infinity War was a more compelling experience at home in 4K and HDR than in my local IMAX theater.

Price: $32,000 At A Glance: Clear, sparkling highs • Tight, extended bass • Broad, deep soundstage • Stunning fit and finish

If you’re unfamiliar with the British speaker company Bowers & Wilkins, perhaps that’s because it’s more commonly known simply as B&W. Founded in the mid-1960s by John Bowers and Roy Wilkins, it’s now one of the most respected loudspeaker manufacturers in the world, with products ranging from budget-priced to Olympic.

The 800 Diamond series is the third generation of Bowers & Wilkins’s most sophisticated range, with iconic looks that date back to the late 1990s. The 802 Diamond is one step down in price from the company’s current flagship, the $24,000/pair 800 Diamond. And while B&W’s lower-priced speakers, like most, are manufactured in China, the 800 is built in the company’s facilities in England.

"The Cube" is the first stop in testing a B&O loudspeaker. At 12x12x13 meters it is the world's largest privately owned sound test room. It is not an anechoic chamber. Instead, B&O built a space large enough to use MLS measurements to a high degree of precision. MLS measures the speaker's response to an impulse. This result is then gated to eliminate the effect of the sound reflected off the walls. The reproduced and filtered impulse is then converted back to a frequency response (techies will recognize this as a Fourier transformation). The two walls of the chamber are damped, not to eliminate reflections but to speed up the time between impulses (a number of impulses are averaged for greater precision). The support structure shown here holds the loudspeaker (in the photo it's one of B&O's very tall, pencil-thin designs). The mike is visible in the distance. Measurements are made in 140 different directions.

Speakers for cordless phones, another B&O product category, must be tiny. Looks like it also might make an interesting tweeter, though probably not, as the frequency response of telephone drivers is band limited by design.