Engineering Acoustics/Transducers - Loudspeaker

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Authors · Print · License Edit this template	Part 1: Lumped Acoustical Systems – 1.1 – 1.2 – 1.3 – 1.4 – 1.5 – 1.6 – 1.7 – 1.8 – 1.9 – 1.10 – 1.11 Part 2: One-Dimensional Wave Motion – 2.1 – 2.2 – 2.3 Part 3: Applications – 3.1 – 3.2 – 3.3 – 3.4 – 3.5 – 3.6 – 3.7 – 3.8 – 3.9 – 3.10 – 3.11 – 3.12 – 3.13 – 3.14 – 3.15 – 3.16 – 3.17 – 3.18 – 3.19 – 3.20 – 3.21 – 3.22 – 3.23 – 3.24

Contents 1 Acoustic Transducer 2 Magnet Motor Drive System 3 Loudspeaker Cone System 4 Loudspeaker Suspension

[edit] Acoustic Transducer

The purpose of the acoustic transduer is to convert electrical energy into acoustic energy. Many variations of acoustic transducers exists, although the most common is the moving coil-permanent magnent tranducer. The classic loudspeaker is of the moving coil-permanent magnet type.

The classic electrodynamic loudspeaker driver can be divided into three key components:

1) The Magnet Motor Drive System

2) The Loudspeaker Cone System

3) The Loudspeaker Suspension

This illustration shows a cut-away of the moving coil-permanent magnet loudspeaker.

Woofer Picture here

[edit] Magnet Motor Drive System

[edit] Loudspeaker Cone System

[edit] Loudspeaker Suspension

An equivalent circuit can be used to model all three loudspeaker components as a lumped system. This circuit provides a model of the loudspeaker and its separte sub-componenets and can be used to provide insight into what parameters alter the loudspeaker's performance.