KEF C 1 User manual

D
De es si ig gn nTwo-way bass reflex Two-way bass reflex Two-way bass reflex
D
Dr ri iv ve eu un ni it ts s
19mm (0.75in.) aluminium HF 19mm (0.75in.) aluminium HF 19mm (0.75in.) aluminium HF
100mm (4in.) LF 130mm (5.25in.) LF 2 x 130mm (5.25in.) LF
F
Fr re eq qu ue en nc cy yr re es sp po on ns se e65Hz-40kHz 54Hz-40kHz 41Hz-40kHz
C
Cr ro os ss so ov ve er rf fr re eq qu ue en nc cy y2.5kHz 2.5kHz 2.5kHz
A
Am mp pl li if fi ie er rr re eq qu ui ir re em me en nt ts s
10-100W 10-125W 15-150W
S
Se en ns si it ti iv vi it ty y( (2 2. .8 83 3V V/ /1 1m m) )87dB 88dB 90dB
M
Ma ax xi im mu um mo ou ut tp pu ut t106dB 108dB 111dB
I
Im mp pe ed da an nc ce e8Ω8Ω8Ω
M
Ma ag gn ne et ti ic cs sh hi ie el ld di in ng gYes Yes Yes
W
We ei ig gh ht t3.2kg (7lbs) 4.4kg (9.7lbs) 11.5kg (25.3lbs)
F
Fi in ni is sh he es sBlack Ash, European Walnut Black Ash, European Walnut Black Ash, European Walnut
D
Di im me en ns si io on ns s260 x 150 x 221 mm 290 x 177 x 256 mm 915 x 177 x 260 mm
H x W x D (10.25 x 5.9 x 8.7 in.) (11.4 x 7 x 10 in.) (36 x 7 x 10.25 in.)
P
Pl li in nt th hD Di im me en ns si io on ns sN/A N/A 248 x 322 mm
W x D (9.7 x 12.7 in.)
BOOKSHELF BOOKSHELF FLOORSTANDER
FLOORSTANDER
LEFT CENTRE RIGHT
SUBWOOFER
D
De es si ig gn nTwo-way bass reflex Two-way acoustic suspension Powered bass reflex
D
Dr ri iv ve eu un ni it ts s19mm (0.75in.) aluminium HF 19mm (0.75in.) aluminium HF 1 x 200mm (8in.) LF
2 x 165mm (6.5in.) LF 2 x 130mm (5.25in.) LF
F
Fr re eq qu ue en nc cy yr re es sp po on ns se e36Hz-40kHz 65Hz-40kHz 29Hz-140Hz
C
Cr ro os ss so ov ve er rf fr re eq qu ue en nc cy y2.5kHz 2.5kHz N/A
A
Am mp pl li if fi ie er rr re eq qu ui ir re em me en nt ts s15-200W 10-150W N/A
A
Am mp pl li if fi ie er rN/A N/A 200W built-in Class-D
S
Se en ns si it ti iv vi it ty y( (2 2. .8 83 3V V/ /1 1m m) )91dB 90dB N/A
M
Ma ax xi im mu um mo ou ut tp pu ut t113dB 111dB 108dB
L
Lo ow wp pa as ss sf fi il lt te er rN/A N/A
Variable 40Hz - 140Hz, 4th-order
L
Lo ow wl le ev ve el ls si ig gn na al li in np pu ut ts sN/A N/A RCA phono socket
I
Im mp pe ed da an nc ce e8Ω8ΩN/A
M
Ma ag gn ne et ti ic cs sh hi ie el ld di in ng gYes Yes Yes
W
We ei ig gh ht t13.4kg (29.5lbs) 6.2kg (13.7lbs) 12.2kg (27.0lbs)
P
Po ow we er rr re eq qu ui ir re em me en nt ts sN/A N/A 100 - 240V ac ~, 50 - 60Hz
P
Po ow we er rc co on ns su um mp pt ti io on nN/A N/A 200VA
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Fi in ni is sh he es sBlack Ash, European Walnut Black Ash, European Walnut Black Ash, European Walnut
D
Di im me en ns si io on ns s965 x 203 x 286 mm 177 x 430 x 211 mm 345 x 320 x 377 mm
H x W x D (38 x 8 x 11.25 in.) (7 x 16.9 x 8.7 in.) (13.6 x 12.6 x 14.9 in.)
P
Pl li in nt th hD Di im me en ns si io on ns s273 x 372 mm N/A N/A
W x D (10.75 x 14.65 in.)
GP Acoustics (UK) Ltd.,
Eccleston Road, Tovil, Maidstone,
Kent, ME15 6QP U.K.
Telephone: + 44 (0)1622 672261
Fax: + 44 (0)1622 750653
GP Acoustics (US) Inc.,
10 Timber Lane, Marlboro,
New Jersey 07746 U.S.A.
Telephone: +(1) 732 683 2356
Fax: +(1) 732 683 2358
GP Acoustics GmbH,
Am Brambusch 22, 44536,
Lünen, Deutschland.
Telephone: [phone]
Fax: [phone]
GP Acoustics (France) SAS,
39 Rue des Granges Galand -
BP60414, 37554
Saint Avertin CEDEX, France.
Telephone: [phone]
Fax: [phone]
GP Acoustics (HK) Ltd.,
6F, Gold Peak Building,
30 Kwai Wing Road, Kwai Chung,
N.T., Hong Kong.
Telephone: +(852) 2410 8188
Fax: +(852) 2401 0754
KEF JAPAN,
1-11-17, Honcho, Koganei-city,
Tokyo, JAPAN. 184-0004.
Telephone: [phone]
E-mail: [email protected]
KEF is a registered trademark. KEF reserve
the right, in line with continuing research
and development, to amend or change
specifications.
Not all models or finishes are available in
all markets, contact your local dealer for
specific range details.
PL1661EN

Over four decades of
innovation and a passion for
engineering excellence has
established KEF as one of the
most respected names in
high-end audio.
The ideal that inspired KEF’s founder Raymond Cooke in 1961 was to reproduce recordings so accurately
that they sounded indistinguishable from live performance, which is why so many professionals (including
the BBC) adopted his groundbreaking designs. This spirit of continual innovation in pursuit of perfection
is what has driven KEF engineers ever since. KEF speakers are like no others, and few manufacturers
have pioneered as many breakthroughs in loudspeaker design - from radical new cabinet designs,
cone materials and driver configurations to the use of aerospace technologies and advanced sonic
modelling techniques.
So the new C Series is the product of a multi award-winning heritage of daring design, brilliantly executed.
Today, it finds expression in revolutionary concepts like the KEF Muon (www.kef.com/products/muon),
where ultra-sophisticated driver arrays are shrouded in giant Ross Lovegrove-designed towers of
superformed aluminium. The same talented engineers created the speakers you see in these pages,
with just as much attention to detail and engineering integrity.
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‘‘ttaannggeerriinnee’’wwaavveegguuiiddeeThe same
19mm (0.75in.) tweeter from
the latest Q Series reproduces vocals
with spellbinding realism – the unique
‘tangerine’ waveguide disperses its sweet
natural clarity evenly throughout the room
and provides excellent protection from
straying fingers.
UUllttrraa--rriiggiiddeenncclloossuurreessThe sound
you hear is untainted by any
internal resonance from the sturdily
constructed cabinet, thanks to careful
internal bracing and a dense dual-layered
baffle system.
MMaaggnneettiiccsshhiieellddiinnggFreedom of
positioning is virtually unrestricted
because every C Series speaker is
fully magnetically shielded to eliminate
any risk of interference with other
electronic devices in the room.
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The exceptional acoustic definition
you experience depends on the
recorded signal being perfectly
transmitted, so the twinned binding
posts of the C Series are gold-plated.
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To optimise acoustic resolution,
there are dual sets of binding posts
to accommodate bi-wiring, or, for the
cleanest possible response right across
the frequency range, bi-amplification.
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Bass response is further extended
by a frontal slot port carefully
contoured to maximise low frequency
dispersion and minimise any unwanted
turbulence that might otherwise colour the
well-defined output of the bass drivers.
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ssyysstteemmWith no ugly brackets to
spoil the clean lines, it couldn’t be
easier to secure your C Series satellites
(upright or horizontally) to any suitable
vertical surface using the ingeniously neat
keyhole mounting point built into the back
of each cabinet.
KEF HERITAGE C SERIES TECHNOLOGY

Incredible performers –
whatever your taste…
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Th he eb be ea au ut ty yo of ft th he eC CS Se er ri ie es si is si it ts se ex xc ce ep pt ti io on na al lv ve er rs sa at ti il li it ty y. .
The range is engineered for a perfect tonal match between every model, so you can combine them
however you please. Using the ingenious and highly flexible C6LCR (left/centre/right) for all five main
speakers, for example, gives you a home theatre system of truly epic capabilities. Not only does it deliver
precise and engaging vocals but it is also adept at producing a rich and extensive performance enviable
of any satellite speaker.
Ease of use and flexibility have been engineered into all C Series models from front firing ports for closer
positioning to walls, to the discreet wall mounting brackets fitted to each of the bookshelf speakers.
Even the floorstanders are supplied with dedicated plinths to provide greater stability.
Acoustically the C Series provides the sort of clarity, definition and spatial precision normally associated
with speakers of a much higher price. Power handling is uniformly excellent, so they’re easy to drive with
virtually any amplifier and whether used for music, movies or games, the sheer quality of the sound they
produce is equally captivating.
Choose between classic Black Ash or fine-grained European Walnut finishes - whatever your taste,
we’re confident that the C Series will hugely exceed your expectations of audio enjoyment.
The C1 pairs the superbly accurate
19mm (0.75in.) tweeter and ‘tangerine’
waveguide from the latest Q Series with
a slot-ported 100mm (4in.) midrange/bass
cone. Both sit on a dense two-layer front
baffle system to deliver a complex,
profoundly realistic and spatially accurate
soundscape. With excellent power
handling and a carefully tuned crossover,
the C1 delivers a generously full
performance that belies its discreet
appearance and modest size.
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C SERIES
Clear, confident and natural sounding,
the C3 boasts KEF’s 130mm (5.25in.)
bass driver for impressively extended
low frequency response to complement
the seductive realism of the sophisticated
19mm (0.75in.) tweeter and ‘tangerine’
waveguide. The resulting soundscape
is warm, rich in detail and compellingly
three-dimensional, whether you’re
enjoying a favourite track or watching
a movie.
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A competent and compact floorstander,
the C5 combines the latest 19mm
(0.75in.) tweeter and ‘tangerine’
waveguide with two 130mm (5.25in.) bass
drivers in a slim, internally braced cabinet.
Meticulously tuned crossovers ensure
seamless transitions and dual binding
posts allow bi-wiring or bi-amplification.
Whatever the genre, whatever the
medium, the resulting sonic picture is
open, fluent and involving.
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If you’re serious about sound, you’ll find
the C7 an endlessly gratifying companion.
With KEF’s phenomenal 19mm (0.75in.)
tweeter and ‘tangerine’ waveguide,
complemented by a pair of large 165mm
(6.5in.) bass drivers, an intricate and
disarmingly naturalistic three dimensional
sound image floods the room. As with all
of the new C Series models, the highly
rigid cabinet is vented by a carefully
contoured front port to provide a wide
and extended bass.
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The vital centre channel is at the heart of
any 5.1 surround sound set-up - except
that the remarkable C6LCR can also be
used as front and rear satellites.
The latest 19mm (0.75in.) aluminium
tweeter with ‘tangerine’ waveguide is
flanked by two 130mm (5.25in.) LF
drivers to produce both a centre speaker
with precise and captivating vocals and a
powerful satellite adding depth and
dynamics to any 5.1 system.
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Unobtrusively handsome, yet powerful,
the new C4 subwoofer provides an
incredible bass output with immaculate
control. With a 200W on-board amplifier
driving a 200mm (8in.) front-firing bass
cone, the C4 is engineered to minimise
distortion as meticulously as the rest of
the range and adds effortless depth and
weight to any performance.
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