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KEF LS3/5a - User Manual

KEF LS3/5a
6 pages
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Summary

Introduction

Overview

Compact loudspeaker system designed for free space operation on stands or bookshelf.

BBC Design Origin

Loudspeaker designed by the BBC Engineering Department for broadcast quality sound.

Installation

Unpacking, Handling, and Aftercare

Instructions for unpacking, inspecting for damage, and maintaining the speaker's finish.

Speaker Placement and Room Acoustics

Guidance on positioning speakers for optimal listening experience and stereo effect.

Speaker Cables

Recommendations for choosing and using high-quality speaker cables for best performance.

Amplifier to Speaker Connections

Step-by-step guide for connecting the amplifier to the LS3/5a terminals.

Bi-wiring and Bi-amping Terminals

Explanation of how to use bi-wiring and bi-amping terminals for separate frequency connection.

Speaker Phasing

How to check and correct speaker phasing for accurate sound reproduction.

Grilles

Information on the grille material and recommendations for leaving them in place.

Amplifier Requirements and Power Handling

Guidance on matching amplifier power to the LS3/5a's capabilities and safe operation.

Warranty

Warranty Information

Outlines the 5-year guarantee against manufacturing defects and exclusions.

Service Information

Advice on diagnosing faults and contacting dealers or KEF for service.

Summary

Introduction

Overview

Compact loudspeaker system designed for free space operation on stands or bookshelf.

BBC Design Origin

Loudspeaker designed by the BBC Engineering Department for broadcast quality sound.

Installation

Unpacking, Handling, and Aftercare

Instructions for unpacking, inspecting for damage, and maintaining the speaker's finish.

Speaker Placement and Room Acoustics

Guidance on positioning speakers for optimal listening experience and stereo effect.

Speaker Cables

Recommendations for choosing and using high-quality speaker cables for best performance.

Amplifier to Speaker Connections

Step-by-step guide for connecting the amplifier to the LS3/5a terminals.

Bi-wiring and Bi-amping Terminals

Explanation of how to use bi-wiring and bi-amping terminals for separate frequency connection.

Speaker Phasing

How to check and correct speaker phasing for accurate sound reproduction.

Grilles

Information on the grille material and recommendations for leaving them in place.

Amplifier Requirements and Power Handling

Guidance on matching amplifier power to the LS3/5a's capabilities and safe operation.

Warranty

Warranty Information

Outlines the 5-year guarantee against manufacturing defects and exclusions.

Service Information

Advice on diagnosing faults and contacting dealers or KEF for service.

KEF LS3/5a Specifications

General IconGeneral
Impedance8 ohms
Drive unitsB110 bass/midrange unit, T27 tweeter
Crossover frequency3kHz
Frequency Response70Hz - 20kHz (±3dB)
Sensitivity83dB
Power Handling25W (programme)
WooferB110
TweeterT27 tweeter
Dimensions305 x 190 x 165 mm (12 x 7.5 x 6.5 inches)

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