ABSTRACT 

Audio loudspeaker (output transducer) is on of the most essential and powerful device used in telecommunication system. This is device capable of converting electrical signal into sound and vice versa. It is made up of few time of non-magnetic wire wound on a light cylindrical former that is mounted so that it can move freely insides the magnetic field of a strong permanent magnet. The speaker cone it attached to the voice coil and attached with a flexible mounting to outer ting of the speaker support.

The device  was contracted and operated based on the principles of electromagnetic   induction which was  clearly stated by faradays and langue laws of electromagnetic induction. This speaker has power rating of low watts and 16ohms impedance 

The materials used in made up of particle board of ¾ thickness tweeter and cross over network..

This device constructed locally can compete favourably well with the imported one (with international standard) the information in this write up comprises of the construction operation a detailed information of each component parts and various used of output transducer (loudspeaker).

TABLE OF CONTENT 

Title page

Certification 

Dedication 

Abstract

Table of content 

CHAPTER ONE 

Introduction

Background information 

Aim

CHAPTER TWO 

Literature review

Function of various parts of loudspeaker 

Working principles of a loudspeaker 

CHAPTER THREE

Meaning of crossover 

Component parts of crossover 

Crossover design 

General methodology of crossover design 

CHAPTER FOUR  

Meaning of a tweeter 

Operation of a tweeter 

Dome fluid 

Ferro fluid

Types of tweeter 

CHAPTER FIVE

Requirement of enclosure

Types of infinite battle enclosure