Electro-Voice T22 manuals

Owner’s manuals and user’s guides for Portable speakers Electro-Voice T22.
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Table of contents

HORN LOUDSPEAKERS

1

Contents

3

Abstract – Zusammenfassung

7

Zusammenfassung

8

Chapter 1

9

Introduction

9

2 CHAPTER 1. INTRODUCTION

10

4 CHAPTER 1. INTRODUCTION

12

6 CHAPTER 1. INTRODUCTION

14

Chapter 2

15

Combination

15

2.1 Horn Driver

16

(a) Magnitude

19

(b) Phase

19

Phase-Plug

20

2.1. HORN DRIVER 13

21

2.2 Horn

22

Chapter 3

27

Horn Driver and Horn

27

Driver’s Mouth

28

Figure 3.1: Scanning ta

29

Controller

30

3.1.2 Velocity Measurement

31

3.1.3 Mesh Requirements

32

Degree 18 means 2

33

3.2 Modal Decomposition

35

3.2. MODAL DECOMPOSITION 29

37

3.3 Analysis

38

Figure 3.9: The constant Λ

40

3.3.2 Decomposition Results

41

3.4 Discussion of the Results

43

Chapter 4

49

Figure 4.2: Coupling of horn

52

4.2 Simplified Descriptions

55

Figure 4.3:

56

Pressure source

56

Figure 4.5: Electro-acoustic

58

Chapter 5

61

Modal Surface Pressure

66

Superposition of

69

10cos,ii

71

10sin,ii

72

20cos,ii

72

Chapter 6

79

6.1 Fundamental Mode Model

80

Mode Model’s Parameters

81

Frequency(Hz)

82

SPL [dB]

82

Figure 6.3: Two-ports S and T

84

Phase[°]

87

Frequency[Hz]

87

6.1.6 Discussion

95

Chapter 7

97

7.1 Nonlinear Wave Equation

99

Figure 7.2: Fundamental

102

1.4” throat

102

7.3.1 Horn Related Distortion

103

Figure 7.3: Max-SPL at 10%

104

Figure 7.6: Simulation of the

107

Max-SPL at 10% second har

107

Figure 7.7: On axis frequency

108

7.5 Discussion

111

Chapter 8

113

Professional Development of

113

Loudspeakers

113

8.1 Horn Optimization

114

8.1. HORN OPTIMIZATION 107

115

(a) Coarse mesh

116

8.1. HORN OPTIMIZATION 109

117

8.1. HORN OPTIMIZATION 111

119

8.1. HORN OPTIMIZATION 113

121

8.1.2 Nonlinear Simulations

123

Coupled System Driver/Horn

124

Lower cut−off frequency

125

(a) Driver A

127

(b) Driver B

127

(Max SPL)

131

Chapter 9

135

128 CHAPTER 9. SUMMARY

136

130 CHAPTER 9. SUMMARY

138

132 CHAPTER 9. SUMMARY

140

Kapitel 10

141

Kurzfassung

141

Horntreiber und Horn

142

136 KAPITEL 10. KURZFASSUNG

144

138 KAPITEL 10. KURZFASSUNG

146

140 KAPITEL 10. KURZFASSUNG

148

Appendix A

149

Glossary

149

Appendix B

152

Discretised Decomposition

152

Appendix C

154

Appendix D

156

Appendix E

157

Nonlinear wave equation

157

E.1 Second order equation

158

Danksagung

161

Lebenslauf

162

Bibliography

163

156 BIBLIOGRAPHY

164

BIBLIOGRAPHY 157

165

158 BIBLIOGRAPHY

166

BIBLIOGRAPHY 159

167

160 BIBLIOGRAPHY

168

BIBLIOGRAPHY 161

169

162 BIBLIOGRAPHY

170

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