KEF C Series C5, C Series C7, C Series C4, C 1, C 3 Brochure

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Two-way bass reflex Two-way bass reflex Two-way bass reflex

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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

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65Hz-40kHz 54Hz-40kHz 41Hz-40kHz

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2.5kHz 2.5kHz 2.5kHz

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1

0-100W 10-125W 15-150W

SSeennssiittiivviittyy ((22..8833VV//11mm)

)

87dB 88dB 90dB

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106dB 108dB 111dB

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8Ω 8Ω 8Ω

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Yes Yes Yes

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3.2kg (7lbs) 4.4kg (9.7lbs) 11.5kg (25.3lbs)

FFiinniisshhees

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Black Ash, European Walnut Black Ash, European Walnut Black Ash, European Walnut

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2

60 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.)

PPlliinntthh DDiimmeennssiioonns

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N/A N/A 248 x 322 mm

W x D (9.7 x 12.7 in.)

B

OOKSHELF BOOKSHELF FLOORSTANDER

FLOORSTANDER

LEFT CENTRE RIGHT

SUBWOOFER

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Two-way bass reflex Two-way acoustic suspension Powered bass reflex

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19mm (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

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36Hz-40kHz 65Hz-40kHz 29Hz-140Hz

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y

2.5kHz 2.5kHz N/A

AAmmpplliiffiieerr rreeqquuiirreemmeenntts

s

15-200W 10-150W N/A

AAmmpplliiffiieer

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N/A N/A 200W built-in Class-D

SSeennssiittiivviittyy ((22..8833VV//11mm)

)

91dB 90dB N/A

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113dB 111dB 108dB

LLooww ppaassss ffiilltteer

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N/A N/A

Variable 40Hz - 140Hz, 4th-order

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N/A N/A RCA phono socket

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8Ω 8Ω N/A

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Yes Yes Yes

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13.4kg (29.5lbs) 6.2kg (13.7lbs) 12.2kg (27.0lbs)

PPoowweerr rreeqquuiirreemmeenntts

s

N/A N/A 100 - 240V ac ~, 50 - 60Hz

PPoowweerr ccoonnssuummppttiioon

n

N/A

N/A

200VA

FFiinniisshhees

s

Black Ash, European Walnut

Black Ash, European Walnut Black Ash, European Walnut

DDiimmeennssiioonns

s

965 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.)

PPlliinntthh DDiimmeennssiioonns

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273 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: [e-mail]

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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The 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.

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The 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.

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Freedom 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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With 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