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A class above
The multiple award-winning Q Series has always exemplified KEFs
conviction that new materials and technologies can, when applied
with intelligence and imagination, reproduce recordings so perfectly
that they sound indistinguishable from the live event. This is
more true now than ever before. As the latest expression of this
design philosophy, the new range immerses you in three-dimensional
imagery of a richness and clarity that until now has been the
exclusive preserve of speakers costing many times more.
The all new Q Series from KEF represents a quantum leap in terms
of listening pleasure.
At its heart is a brand new Uni-Q driver array. Derived from
the Concept Blade project, with a new, larger, high performance
vented tweeter mounted at the acoustic centre of a new metal cone
LF/MF driver, it combines lavishly extended bandwidth with effortless
dynamics, imperceptible distortion and outstanding acoustic clarity.
These are speakers with the power to strike a chord in your heart.
Off-axis dispersion is unrivalled, so everyone in the room enjoys
the same exceptionally realistic sonic imaging, wherever they
sit. And with 30% larger capacity cabinets for even gutsier bass
and minimalist crossovers assuring deliciously fluid transitions,
new Q is both more eloquent and more emotive than its illustrious
predecessor.
Movies or music, Mahler or Massive Attack, what you experience
is the captivatingly sweet, accurate and natural live sound of
the original performance.
Bookshelf models
Whether as main speakers, music speakers for your study or family
room, rear speakers in a home theatre system or general purpose
speakers for multi-room set-ups, the two new Q bookshelf models
open up a world of audiophile quality sound at a surprisingly
affordable price.
The sound they make is even more surprising: lush, spacious and
precisely defined, with compelling midrange/HF response and solid,
immaculately controlled bass.The two models Q100, with
a 130mm (5.25in.) Uni-Q array and Q300 with the 165mm (6.5in.)
variant deliver all the benefits of the Uni-Q point
source configuration in its latest and most refined form:
a more accurate sound image dispersed more evenly throughout the
room than is possible with any conventional speaker.
Subjectively, it makes a huge difference. Because everyone in
the room is enveloped in the same beautifully integrated three-dimensional
sound image, viewing becomes more of a shared experience
and you no longer have to stay in the same spot to get the full
enjoyment from your favourite tracks.
Technology with soul
The brilliantly innovative engineering of the new Q Series surrounds
you with a spacious sonic image of astonishing purity.
A groundbreaking new Uni-Q array that conjures up a fluent, spacious
and incredibly realistic 3D sound stage you can enjoy wherever
you sit. A spectacular new high performance LF driver that delivers
deeper, cleaner and more accurate bass. And a total design
approach, with obsessive attention to detail and the pleasures
of ownership. These are the qualities that set the new Q Series
apart.
All new Uni-Q array
Sweet, spacious and true, wherever you sit.
Thanks to the latest computer modelling techniques, years of
painstaking development and a dash of design genius, the new iteration
of the Uni-Q concept packs a formidable complement of design innovations.
Based on the state-of-the-art HF driver developed for Concept
Blade, the new Q boasts a much larger (25mm/1 in. dome) tweeter
for increased sensitivity and distortion-free power handling.
It plays as loud as it plays true.
The vented tweeter design allows upper registers to be reproduced
with startling clarity and smoothes the transition to midrange
frequencies. The dome assembly is cleverly braced, pushing the
first breakup beyond the audible range so that the sound you hear
is flawlessly accurate. And to make sure everyone in the room
enjoys the benefit, KEFs distinctive tangerine
waveguide over the dome maximises Uni-Qs exceptionally wide
dispersion characteristics.
At lower frequencies, the superlight new aluminium cone of the
LF/MF drive unit delivers noticeably faster, cleaner response.
This is enhanced by KEFs unique Z-flex surround, which allows
the extreme excursions needed to deliver a truly visceral thump
while also maintaining a seamlessly smooth surface to disperse
the high frequencies from the tweeter.
The ensemble is a masterpiece of modern acoustic engineering.
Vocals suddenly seem much more immediate more open and
natural. Surrounded by sound of such clarity, you start hearing
things you never did before. Nuances in the way an instruments
played. The sound of a distant cricket in an outside scene. A
breath, even. And best of all, you dont have to be in a
little sweet spot to experience it. With KEF Uni-Q,
you can sit where you want and not miss a thing. All you hear
is what the artist intended.
Advanced bass technologies
Deeper, tighter and more accurate bass.
Featuring rigid new aluminium cone technology just like the Uni-Q
array, the new Q Series advanced bass driver is a tour de force
in its own right. A die-cast aluminium chassis rigidly locates
the high efficiency vented magnet assembly to prevent unwanted
resonance, and the large (50mm) voice coil ensures impressive
power handling. Its musicality is impeccable: seductively tuneful
and well controlled, and on the floorstanding models, complemented
by dedicated front-firing auxiliary bass radiators (ABRs).
Deep, fast and powerful, this outstanding bass response is enhanced
by new enclosures with massive internal bracing to eliminate resonance
and importantly, over 30% more volume than their predecessors.
For movie effects, this noticeably enhances the realism of the
sound when combined with the newly assertive midrange.
Total system design
A holistic approach with no compromises.
The performance envelope of these sensational new drive units
is so generous that the signal needs minimal intermediation
simple first order crossovers are all thats required, as
you can tell from the transparency of the sound and the inaudibly
fluent transitions.
You can see KEFs legendary attention to detail everywhere.
Gold plated bi-wire terminals for the clearest possible signal
transmission, for example. Or the spikes on the floorstanders
theyre adjustable from the top instead of the bottom
to make levelling easier. Thoughtful touches.
As you might expect from a company of perfectionists, we see
more to the ownership experience than simply luxuriating in the
best possible sound. We think about the environment too. When
you unpack your new Q speakers, youll find that the packaging
that protects them is ecologically sound. Because the crossover
circuit boards are smaller, the materials impact is reduced.
And when you admire their sumptuous finish in Black Oak,
English Cherry or European Walnut you can do so in the
knowledge that what looks like a fine exotic hardwood veneer is
in fact recycled wood fibre. This total design approach is another
aspect of the difference with KEF. Its all about weaving
truly great sound into the fabric of the lives we live now.
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Q600c |
Q200c |
Q800ds |
| Design |
Three-way bass reflex |
Three-way bass reflex |
Three-way dipole |
| Drive units |
165mm (6.5in.) aluminium Uni-Q
25mm (1in.) vented aluminium
dome HF
165mm (6.5in.) aluminium LF
165mm (6.5in.) aluminium ABR |
130mm (5.25in.) aluminium Uni-Q
25mm (1in.) vented aluminium
dome HF
130mm (5.25in.) aluminium LF
130mm (5.25in.) aluminium ABR |
2 x 130mm (5.25in.) aluminium
Uni-Q
2 x 25mm (1in.) vented aluminium
dome HF |
| Frequency response ±3dB |
45Hz - 40kHz |
50Hz - 40kHz |
100Hz - 40kHz |
| Crossover frequency |
500Hz, 2.5kHz |
500Hz, 2.8kHz |
300Hz, 2.5kHz |
| Amplifier requirements |
15 - 150W |
15 - 130W |
10 - 100W |
| Sensitivity (2.83V/1m) |
87dB |
85dB |
85dB |
| Maximum output (SPL) |
110dB |
108dB |
107dB |
| Impedance |
8Ω |
8Ω |
8Ω |
| Weight |
14.1kg (31.1lbs) |
11.0kg (24.3lbs) |
7.4kg (16.3lbs) |
Dimensions
(H x W x D) |
210 x 629 x 302 mm
(8.3 x 24.8 x 11.9 in.) |
180 x 525 x 260 mm
(7.1 x 20.7 x 10.2 in.) |
180 x 348 x 180 mm
(7.1 x 13.7 x 7.1 in.) |
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Q400b |
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| Design |
Closed-box subwoofer |
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| Drive units |
1 x 250mm (10in.) |
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| Frequency response ±3dB |
28Hz - 140Hz |
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| Amplifier |
200W built-in Class-D |
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| Maximum output (SPL) |
110dB |
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| Low pass filter variable |
40Hz - 140Hz, 4th-order |
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| Low level signal inputs |
RCA phono sockets |
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| Internal volume |
23.2 litres |
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| Power requirements |
100 - 240V ac ~ 50/60Hz |
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| Power consumption |
200VA |
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| Weight |
13.6kg (29.9lbs) |
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Dimensions
(H x W x D) |
335 x 330 x 330 mm
(13.2 x 13.0 x 13.0 in.) |
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