Loudspeakers

How to make sense of the KEF speaker range? A sideways glance helps no end: comparing ostensibly similar models from across the company's four mainstream lineups – five, if you count the highly polished Muon flagship [HFN May '08] – will give a clearer idea of the way these various loudspeaker series dovetail together, even when the similarities seem greater than the differences.

Bowers & Wilkins might be one of the largest loudspeaker manufacturers around, but surprisingly it doesn't have a very broad offering, fielding considerably fewer models than, say, KEF or Focal. Leaving CI products aside (and the iconic but no longer revolutionary Nautilus), there are only three main loudspeaker families coming out of Worthing, and as the 800 D4 series [HFN Nov '21, Feb '22, May & Sep '23] and 700 S3 series [HFN Mar '23] represent the most recent major updates, it was inevitable that the nearly 30-year-old 600 series would follow suit.

One of my secret loves has long been transmission line speakers. I miss IMF (named after the designer, Irving M. Fried), the doyen of the genre, although the technology has been used by other brands – most notably PMC. You can therefore imagine my delight when the prodigy1 arrived at a mere £1250. I'd been hearing about it for months, as the prodigy1 (with lowercase 'p') was a talked-about launch at the 2023 Munich High-End Show.

Canton is not only Germany's largest loudspeaker manufacturer, it might also be one of the most prolific speaker builders in the world. Yet within an extensive range that includes everything from on-wall and in-ceiling speakers to soundbars and subwoofers, its Vento series has long been a main 'pillar' of the brand, in production for nearly two decades. And now, as part of a recent refresh of the Canton catalogue overseen by technical director Frank Göbl, it's been comprehensively upgraded.

How time flies: it's just over a decade since MartinLogan applied its expertise with hybrids to box-type systems instead of the usual electrostatic-panel-plus-cone-woofer which defined most of its models. Even though MartinLogan started out with a full-range ESL – the legendary CLS [HFN Feb '87] – its engineers swiftly excelled in the black arts of combining two speaker technologies, so the Motion range created a whole new field for them to plough. In this case, it's a cone woofer and a 'Generation 2 Folded Motion Tweeter', found here in the £1395-per-pair Motion B10 standmount model.

We've been here before: just over a year and a half ago [HFN Nov '21] we pitched the newly arrived 801 D4 loudspeaker from Bowers & Wilkins against the 800 D3, its previous flagship, and played 'spot the differences' between two designs half a dozen years apart. At the time, we also commented on the changes at the company since the D3 models were launched in 2015, not least the acquisition of the Worthing-based manufacturer by Silicon Valley start-up Eva Automation, then by Sound United, the parent brand of Denon, Marantz and others.

Those of an historical bent will know that Wilson Audio's Sasha V isn't merely the fourth-generation Sasha, nor is it simply 'Sasha DAW 2.0'. This two-box floorstander is to the original WATT Puppy [HFN Nov '90] what the current Porsche 911 is to the 911 of 1964: a carefully-developed, decades-long evolution of a brilliant initial concept.