KEF’s new basketball-sized subwoofer promises ‘maximum bass in minimum space’

There are probably caveats to reaching 11Hz, which well talk about in a bit, however KEF isnt understood to overemphasize its specs much in my experience. The business is instead utilizing some newfangled technology to pack more performance into a small plan.
Though the KC62 has 2 woofers, they are only 6.5-inches wide, which still isnt all that much surface area to deal with. Instead, KEF gains some bass extension by adding more trip– the distance a woofer moves at complete rumble. This is made it possible for by something KEF is calling Uni-Core, which uses a single motor to drive both woofers, thanks to overlapping voice coils in a concentric plan.

Simply put, the guts of the two woofers are integrated, which KEF declares “permits the cabinet size to be minimized by over a third while equaling or going beyond the chauffeur adventure of a much larger subwoofer.” The expedition ability is also improved by an elegant origami-like style to the woofers surround, and integrated distortion-monitoring technology the noise from becoming too colored.
Still, the company cant bypass physics, and theres only so much you can do in a cabinet this size. While I do not doubt the subwoofer will have the ability to reach 11Hz under the best conditions, opportunities are that specification just uses when listening at lower volumes with certain subwoofer placements, as many subwoofers will restrict bass extension as the volumes increase. I d be extremely surprised if it managed to strike those least expensive frequencies at, say, house theater, room-shaking levels.

At $1,500, its plainly targeted at major audio lovers just. However getting the low bass right, specifically in such a little footprint, is among the hardest things to get right in audio. A good subwoofer (or 2, three, four …) is one of the most extensive upgrades you can make to your audio system, even if youre not a basshead, and even if you have tower speakers.
Not only does a sub boost your systems capacity for low bass extension, it also maximizes the greater frequency drivers to play louder and/or with less distortion. A sub is likewise an element you can keep consistent as you update or switch speakers, permitting you to focus on other characteristics of sound quality aside from simply bass extension.
As somebody who spent months searching for a decent subwoofer little enough to suit my TV console– to no avail– I picture the KC92 might well deserve it to the best audiophile. Presuming KEF in fact provides, of course.Did you know we have a newsletter all about customer tech? Its called Plugged In–.
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But the KC62 is only about 10 inches large in every dimension– simply a little bigger than a basketball, and little sufficient to easily fit an IKEA Kallax, cables and all. It also isnt the giant eyesore numerous subwoofers with that kind of extension are. The curved edges and matte finish well complement the aesthetics of KEFs fantastic LS50 Meta speakers.

However anything below 20hz is truly only felt rather than heard though, so its primarily icing on the cake. If the business can deliver bass extension to, state, 20-25Hz at reasonable listening levels, and with well-controlled distortion, that would still be extremely impressive and outperform nearly any subwoofer this size.
When I asked KEF for more specifics, they told me the KC62 can reach 20 Hz at approximately 80 dB under anechoic conditions, which is already fairly loud. But that implies it can get a fair bit louder than that when in an actual room where your walls can quickly enhance low bass by roughly 6-12 dB. The specific quantity will depend upon your space dimensions and positioning, but if KEFs claims apply, I think this relatively small subwoofer will more than suffice for most listeners (KEFs got the KF92 if you need something more powerful that still isnt ginormous).
Its not a totally unimaginable feat either– the Devialet Phantom Reactor is even smaller sized than this subwoofer and had no difficulty striking 25Hz at common listening levels in my home.
Getting this much bass from a small cabinet needs a great deal of power, so behind those elements are 1000W of amplification and digital signal processing that dynamically changes the subwoofers output based upon the content to get the most bass without clipping. The KC62 likewise supports KEFs KW1 adapter for wireless connectivity (state, if you require to put the subwoofer far from your receiver or speakers), and comes with 5 presets to tweak the sound depending upon where you place the sub.

Case in point: KEF, a hi-fi audio business, simply introduced a tiny subwoofer with some wild efficiency claims.
Thats ridiculously low extension that you d typically just anticipate from a huge, minifridge-sized subwoofer.

We do a reasonable amount of high-end speaker and earphone reviews at TNW, but its unusual we talk about other audio system elements. Every as soon as in a while however, such a product ends up making our attention. Case in point: KEF, a hi-fi audio company, just launched a small subwoofer with some wild performance claims.
Things initially: this subwoofer is expensive, at $1,500. The cost might be warranted, however, once you see the KC62 has a claimed frequency action of 11– 200 Hz (+/- 3dB). Thats unbelievably low extension that you d generally only expect from an enormous, minifridge-sized subwoofer.

While I dont doubt the subwoofer will be able to reach 11Hz under the ideal conditions, possibilities are that spec just uses when listening at lower volumes with specific subwoofer positionings, as numerous subwoofers will limit bass extension as the volumes increase. An excellent subwoofer (or 2, 3, four …) is one of the most extensive upgrades you can make to your audio system, even if youre not a basshead, and even if you have tower speakers.
As someone who invested months trying to discover a decent subwoofer little sufficient to fit in my TELEVISION console– to no avail– I picture the KC92 might well be worth it to the ideal audiophile.

Released January 21, 2021– 08:00 UTC.

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