KEF iQ70 User Manual

Part No.K290223ML
Issue 2: August 2008
5
GP Acoustics (UK) Ltd., Eccleston Road,Tovil, Maidstone, Kent, ME15 6QP U.K.
Tel: + 44 (0)1622 672261 Fax: + 44 (0)1622 750653
GP Acoustics (US) Inc., 10 Timber Lane, Marlboro, New Jersey 07746 U.S.A.
Tel: +(1) 732 683 2356 Fax: +(1) 732 683 2358
GP Acoustics GmbH, Am Brambusch 22, D-44536 Lünen, Deutschland.
Tel: +49 (0) 231 9860-320 Fax: +49 (0) 231 9860-330
GP Acoustics (France) SAS, 39 Rue des Granges Galand - BP60414,
37554 Saint Avertin CEDEX, France.
Tel : +33(0)2 47 80 49 01 Fax: +33(0)2 47 27 89 64
GP Acoustics (HK) Limited, 6F, Gold Peak Building, 30 Kwai Wing road,
Kwai Chung, N.T., Hong Kong.
Tel : +852 2410 8188 Fax: +852 2401 0754
KEF JAPAN 1-11-17, Honcho, Koganei-City, Tokyo, JAPAN 184-0004
Tel: +81 (0)42-388-2030 E-mail: info@kef.jp
www.kef.com
KEF and Uni-Q 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.
Design Two-way bass reflex Two-way bass reflex Two and a half-way bass reflex Two and a half-way bass reflex Three-way bass reflex
Drive units
130mm (5.25in.) Uni-Q 165mm (6.5in.) Uni-Q 130mm (5.25in.) LF 165mm (6.5in.) LF 2 x 165mm (6.5in.) LF
19mm (0.75in.) alu dome HF 19mm (0.75in.) alu dome HF 130mm (5.25in.) Uni-Q 165mm (6.5in.) Uni-Q 165mm (6.5in.) Uni-Q
19mm (0.75in.) alu dome HF 19mm (0.75in.) alu dome HF 19mm (0.75in.) alu dome HF
Frequency response 50Hz - 40kHz 45Hz - 40kHz 40Hz - 40kHz 36Hz - 40kHz 33Hz - 40kHz
Crossover frequency 2.5kHz 2.5kHz 2.5kHz 2.5kHz 180Hz - 2.5kHz
Amplifier requirements 10-100W 15-120W 15-130W 15-150W 15-200W
Sensitivity (2.83V/1m) 88dB 89dB 88dB 90dB 91dB
Maximum output 108dB 110dB 109dB 111dB 113dB
Nominal impedance 8Ω 8Ω 8Ω 8Ω 8Ω
Magnetic shielding Yes Yes Yes Yes Yes
Weight 4.5kg (9.9lbs) 6.45kg (14.2lbs) 10.2kg (22.5lbs) 14kg (30.9lbs) 16.3kg (35.9lbs)
Dimensions 301 x 175 x 261 mm 365 x 220 x 327 mm 815 x 175 x 261 mm 865 x 220 x 327 mm 942 x 220 x 327 mm
H x W x D 11.8 x 6.9 x 10.3 in. 14.4 x 8.7 x 12.9 in. 32 x 6.9 x 10.3 in. 34 x 8.7 x 12.9 in. 37 x 8.7 x 12.9 in.
Plinth Dimensions N/A N/A 28 x 250 x 295 mm 28 x 288 x 348 mm 28 x 288 x 348 mm
H x W x D 1.1 x 9.8 x 11.6 in. 1.1 x 11.3 x 13.7 in. 1.1 x 11.3 x 13.7 in.
Design Three-way bass reflex
Drive units
2 x 130mm (5.25in.) LF
130mm (5.25in.) Uni-Q
19mm (0.75in.) alu dome HF
Frequency response 65Hz - 40kHz
Crossover frequency 280Hz - 2.8kHz
Amplifier requirements 15-150W
Sensitivity (2.83V/1m) 90dB
Maximum output 111dB
Nominal impedance 8Ω
Magnetic shielding Yes
Weight 8.8kg (19.4lbs)
Dimensions 165 x 512 x 255 mm
H x W x D 6.5 x 20.1 x 10 in.
Installation Manual
Manuel d’installation
Installationshandbuch
Manuale d’installazione
Manual de instalación
Manual de instalação
Installatiehandleiding
Installationsanvisning
Podręcznik instalacji
GB
I
F
D
NL
ES
DK
P
PL
JP
RU
GR
K
CN
TC
(GB) Specifications
(F) Spécifications
(D) Technische Merkmale
(I) Specifiche
(ES) Especificaciones
(P) Especificações
(NL) Technische gegevens
(DK) Specifikationer
(PL) Specyfikacja techniczna
(RU)
(GR)
(JP)
(CN)
(TC)
(K)
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iQ Manual_II-Rev02.indd 1 2008-9-24 11:50:18

KEF iQ70 Specifications

General

Type	3-way bass reflex
Frequency Response	36Hz - 40kHz
Impedance	8 Ohms
Recommended Amplifier Power	15 - 150W
Finishes	Black Ash, American Walnut
Sensitivity	91dB
Drive Units	165mm (6.5in.) aluminium Uni-Q, 165mm (6.5in.) aluminium LF

Summary

Safety and Usage Precautions

Environmental Handling Warnings

Avoid dampness, direct sunlight, and use appropriate cleaning agents for speaker care.

Cable Management Safety

Secure all trailing speaker cables to prevent tripping hazards and ensure safety.

Speaker Positioning

General Placement Guidelines

Recommendations for optimal speaker placement in a room for best audio performance.

Wall Mounting Instructions

Step-by-step guide for securely mounting speakers on a wall using provided hardware.

Room Setup and Audio Testing

Listening Arrangement Diagrams

Visual guides for stereo and home theatre speaker layouts in various room configurations.

Frequency Response Testing

Illustrations of frequency response tests and interpreting acceptable results.

Speaker Connections

Single Wire Connection

Diagrams illustrating how to connect speakers using a single wire from the amplifier.

Bi-Wired Connection

Diagrams illustrating how to connect speakers using bi-wiring for improved audio.

Bi-Amplified Connection

Diagrams illustrating how to connect speakers using bi-amplification for enhanced performance.

iQ60c Speaker Connections

iQ60c Single Wire Connection

Diagrams detailing the single wire connection for the iQ60c center speaker.

iQ60c Bi-Wired Connection

Diagrams detailing the bi-wired connection for the iQ60c center speaker.

iQ60c Bi-Amplified Connection

Diagrams detailing the bi-amplified connection for the iQ60c center speaker.

Troubleshooting and Fault Finding

Identifying Speaker Problems and Causes

Visual guide to common speaker issues and their potential causes for diagnosis.

Troubleshooting Actions

Recommended steps and solutions to resolve identified speaker problems.

Sound Terminology Explained

Definitions and explanations of audio terms like Treble, Mid-range, Bass, and sound issues.

Product Specifications

KEF Q Series Speaker Specifications

Detailed technical specifications including design, frequency response, and dimensions for all Q Series models.

Manufacturer and Support Details

Contact information for KEF global offices and customer support resources.