KEF KHT-6000-ACE Brochure

home theatre

www.kef.com

KEF Audio (UK), Eccleston Road,Tovil, Maidstone, Kent, ME15 6QP U.K. Telephone: + 44 (0)1622 672261 Fax: + 44 (0)1622 750653

KEF America Inc, 10 Timber Lane, Marlboro, New Jersey 07746 U.S.A. Telephone: +(1) 732 683 2356 Fax: +(1) 732 683 2358

GP Acoustics GmbH, Heinrichstraße 51, D-44536 Lünen, Deutschland. Telephone: [phone]. Fax: [phone]

GP Acoustics (France) SAS, 39 Rue des Granges Galand - BP414, 37554 Saint Avertin CEDEX, France. Tel : [phone] Fax : [phone]

KEF Uni-Q, and Selectamount are registered trademarks. Uni-Q is protected under GB patent 2 236929, U.S. Pat. No. 5,548,657 and other worldwide patents. KEF reserve the right, in line with continuing research and development, to amend or change specifications.

Dolby, Pro Logic, and the double-D symbol are registered trademarks of Dolby Laboratories. DTS is a registered trademark of Digital Theatre Systems Inc.

NXT is a trademark of New Transducers Limited.

perfect sound wherever you are

www.kef.com

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Content

KEF and the KHT story	02
Uni-Q® Technology	03
ACE Technology	04
KHT1000 Series	05
KHT2000 Series	07
KHT3000 Series	09
HTB2 Subwoofer	11
KHT5000 Series	13
KHT6000 ACE	15
KHT9000 ACE	17
fivetwo Series	19
Specifications	23

www.kef.com

KEF and the KHT story

The more sophisticated that digital audio formats become, the better your speakers need to be. Which to choose, though? Manufacturers come and go. Design trends appear, then fade away. But with KEF, you’re dealing with people who’ve been consistently innovating since 1961.

The KEF Home Theatre (KHT) series is a good example. By bringing audiophile quality sound to affordable home entertainment, it’s been breaking new ground ever since it was first introduced. As its many awards and 5-star ratings prove, the original outperformed every conventional system in its class.

But the latest KHT systems extend this advantage even further, whatever your budget. With the introduction of radically innovative concepts like Acoustic Compliance Enhancement (ACE), the latest refinements of KEF’s trademark Uni-Q technology and a new generation of powered subwoofers, there’s a formidable line-up of options to choose from.

They’re all designed to reproduce every last detail encoded in the latest home entertainment formats, and having identical drivers for the satellite and centre speakers of each system guarantees a perfect tonal match. Naturally, they’re all magnetically shielded to avoid interference with your other equipment.

And although each has its own distinctive look, every system is engineered with acoustically inert cast aluminium enclosures and high end components including new metal dome tweeters to create an accurate and compellingly real 3D soundscape - and with the ultra-wide dispersion characteristics of KEF’s Uni-Q point source array, it’s enjoyed with equal pleasure by everyone in the room.

02

Technology

Uni-Q

KEF’s patented Uni-Q driver configuration disperses the sound image over a much larger area than a conventional speaker, instead of being restricted to a small ‘sweet spot’. This outstanding off-axis response is made possible by using aerospace materials to engineer a high performance tweeter that’s small enough to mount in the exact acoustic centre of the bass/midrange cone so that both act as a single point source - an ideal that, so far, only KEF has achieved.

Conventional loudspeaker dispersion showing narrow ‘sweet spot’

03

Based on those developed for the legendary Reference series, the Uni-Q arrays in the new KHT range are the most sophisticated yet, with new metal dome HF drivers that reproduce the human voice with breathtaking accuracy. In purely practical terms, the larger sound image gives you far greater flexibility in placing your speakers where they look best. For home theatre, it means that you experience even the subtlest 3D soundtrack effects with the same clarity and realism wherever you sit.

Excellent dispersion characteristics common with all Uni-Q based products showing wider listening area

Effect of ACE on a 10 litre closed box loudspeaker

ACE

The holy grail of loudspeaker design has always been to generate big bass from small boxes. The trouble is, the laws of physics make this almost impossible to achieve, as bass extension relates directly to efficiency and cabinet size.

Continuing a 40-year tradition of genuine design innovation, KEF engineers have now developed a way of overcoming this apparently insoluble limitation. It’s called Acoustic Compliance Enhancement (ACE), and it works like this. In conventional speakers,cone motion is restricted by the acoustic pressure in the enclosure as the air is alternately compressed and expanded by the cone moving in and out. The smaller the enclosure, the greater the pressure that acts on the cone. By dramatically reducing this pressure, ACE allows the cone to move as freely as it would in a much larger cabinet, generating bass extension out of all proportion to its actual size.

This is achieved by	introducing	granules
of activated carbon	into the	enclosure

- a material containing millions of		pores
ranging in size from visible	fissures		to
holes a few molecules across. One		of	its
characteristics is a capacity	for physical

adsorption, the gravity-like molecular force in which a substance (usually a gas) accumulates in a thin film on the surface of a solid. In the ACE loudspeaker when the cone moves inwards the air pressure increases, triggering adsorption of air molecules from the free air into the carbon.This removal of air molecules from the free air causes the internal pressure to decrease. When the cone moves outwards the opposite happens and the carbon gives out air molecules. The ACE material is constantly acting to reduce the pressure variations in the enclosure in a controlled and linear fashion.

It’s an innovation that makes an amazing difference for the listener. By enhancing compliance by anything from 150% to 300%, ACE-enabled loudspeakers perform like units up to three times their size. In trials of identical Uni-Q arrays fitted to an ACE enclosure 40% smaller than the test cabinet, not only did the listeners agree that bass was undiminished - they unanimously preferred the bass attack of the ACE version. And that’s the acid test of any radical breakthrough in audio design: subjectively as well as objectively,

ACE enriches the listening experience.

04

Discreet design of HTS1001 satellite		Smallest ever Uni-Q array 75mm (3in.)		Optional floor stands
		with 15mm (0.6in.) aluminium dome
		tweeter (top) Cast aluminium
		enclosure (bottom)

05

KHT1005

They may look cute - but they sound anything but. Experiencing a movie or favourite album through KHT1005 is like seeing an old friend after a makeover: fresh, involving, more intense.The centre and satellite speakers all have KEF’s stunning new 75mm (3in.) Uni-Q driver - the smallest ever made, its 15mm (0.6in.) metal dome tweeter and double neodymium magnets delivering the extended bandwidth you normally get with much larger units.

The curvy die-cast aluminium enclosures eliminate the diffractions and internal resonances that so often blur the output of conventional small speakers, so the sound is cleaner and crisper.

The sound image is completed by the slot-ported PSW1000.2 subwoofer*, its

100-Watt onboard power amp driving

a 200mm (8in.) long-throw down-firing bass unit. With output fully adjustable for phase, frequency and level, a ground lift to prevent hum and a cinema setting for even weightier bass punch, its attack is as forceful as it is accurate.

Whether you prefer shelf mounting, optional wall brackets or floor stands with internal cable management, the installation is as discreet as can be - until you press ‘play’, and the whole room fills with immaculate three-dimensional sound. Matt silver finish.

* Note: Subwoofer may differ slightly in North America.

06

KHT2005.2

Charismatic is the only word to describe it. Like the multi-award-winning KHT2005 from which it evolved, the reflex-ported KHT2005.2 pushes the performance envelope of midrange home theatre like no other system.

The spec tells part of the story: with parabolic enclosures computer optimised to eliminate cabinet distortions, the full range centre and satellites all feature KEF’s new 100mm (4in.) Uni-Q array incorporating the 19mm (0.75in.) aluminium dome tweeter from the acclaimed Q series. Ferrofluid-cooled for better power handling and driven by twin neodymium magnets, HF reproduction is startling - even whispered dialogue is pin-sharp.

But the real magic lies in the way all the system components work together.

The tonal match is perfect, and transitions are so smooth you simply can’t hear them. Like all KHT series subwoofers, the matching 250-Watt PSW2010 has a cinema setting for even more bass ‘slam’ with movie sound effects, and individual phase, frequency and level controls allow you to fine tune the output to get the perfect balance with the satellite speakers and your room acoustics.

An ingenious multi-directional base makes it easy to place each satellite wherever it suits you: on a flat surface, at an angle on walls, or on the optional floor stands. It all adds up to a chic, superbly engineered system that delivers way beyond what you’d expect for the price. Available in matt silver finish or soft black.

PSW2010 active subwoofer	Cable management system built into	10mm (4in.) Uni-Q	driver with twin
	mounting bracket (top) Soft black	neodymium magnet system and 19mm
	finish (bottom) of HTS2001.2 satellite	(0.75in.) aluminium dome tweeter (top)
		Adjustable stand of a	matt silver centre
		speaker (bottom)

07

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