Loudspeakers

Clearly inspired by its LS50W, KEF's tiny 'wireless' system in a box is a big triumph

There are active speakers and active speakers. Some models claim to be 'active' but are really just powered, with a single amplifier within the speaker cabinet driving the tweeter and mid/bass unit via a conventional passive crossover, sometimes even with a stereo power amp in one speaker driving both it and a slave partner.

It might look like more of the same, yet this Q series loudspeaker boasts some new features at front and back The Q900 may be top of KEF’s brand, spanking new Q series – the meat and potatoes of its range – but to look at, inside and out, it appears in some ways to represent a step backwards, certainly in respect of KEF’s rich technological history. The Q900 effectively replaces the previous iQ90, a speaker which bowled me over when winning a group test just over a year ago [HFN Mar ’10]. One of the notable aspects of the iQ90 was its curved cabinet, a feature of more than aesthetic significance since it stiffens the enclosure, whereas the large side panels of a conventional box cabinet are prone to resonance. It was a surprise, then, to find the Q900 has what KEF rather grandly terms a ‘rectilinear’ cabinet – what you and I would call a standard, slab-sided box.

KEF's R series adopts all the 'acoustic principles' of its far costlier Reference range, but is the big R11 Meta a 'disruptor'

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.

KEF's innovative 'MAT' absorber has pushed the performance of Uni-Q to new heights. Now it's in the seven-strong R series

It still surprises me that KEF's R series, which features seven models in total, includes only one standmount/bookshelf option. Surprising because compact speakers are extremely popular, and because the R series is the company's mid-tier proposition, above the entry-level Q and a considerable way below the Reference range. Yet the previous generation, which launched in 2018, featured just one standmount – the R3 – so it's deja vu five years later.

The 'Blade' models fly the flag for KEF's speaker tech, but its Reference 5 offers a more accessible route to 'high-end Uni-Q'

Fortunately, the Reference 5 Meta is the £17,500 flagship of KEF's 'conventional' speaker range, bettered only by the striking-looking Blade designs [HFN May '22]. Fortunately? Well, yes, because this is an imposingly huge design, standing just over 1.4m tall, even if some of that impression of scale is minimised by the slenderness of the cabinets. Indeed, if the enclosures were any narrower than their 205mm, there wouldn't be room on the front baffle for the quartet of 165mm aluminium-coned bass drivers, arranged in pairs above and below the company's 12th-generation Uni-Q treble/midrange unit.

If the BeoLab 90 wowed you with its tech but daunted you with its size and price, here’s a pint-sized alternative

Kii Audio’s THREE is an exemplar of what can be achieved when the hi-fi industry’s, and hi-fi buyers’, lingering obsession with passive loudspeakers is set aside and a 21st century approach – active operation in conjunction with digital signal processing (DSP) – is adopted instead. In short order we’ve experienced the B&O BeoLab 90 [HFN Dec ’16], the KEF LS50 Wireless [HFN Oct ’17] and now the Kii (pronounced ‘key’) THREE.

From crude prototype in 1938 to its initial production run in 1947, the Klipschorn was founder Paul W Klipsch's 'cornerstone' horn loudspeaker. How does it fare today?

Viewed from a modern perspective, there's more than an element of 'forget everything you know' about the latest incarnation of the Klipsch Klipschorn AK6, a classic now heading for its 80th birthday. It was designed in 1946 from earlier prototypes by company founder Paul W Klipsch – officially described by the US brand as 'genius, madman and maverick' – in an Arkansas tin shed, and it's been continuously made and refined ever since.