Avalon Acoustics OPUS Ceramique Loudspeaker User Manuals

Table of Contents

• Introduction

  6
• Contents

  6
• 2.1 Opening the Crate

  7
• 2.2 Installing the Grilles

  8
• Orientation of the Felt Anti-Diffraction Mask

  8
• 2.3 Replacing Grille Pins

  9
• Introduction

  11
• Connecting the Speaker to the Amplifier

  11
• Break-in

  14
• Grille Assemblies

  14
• Speaker Placement and Symmetry

  14
• Toe-In

  15
• Apex™ Couplers

  15
• First Reflection Points

  16
• Corner Treatment

  16
• Cabinet (Hardwood Finish)

  17
• Grille Assembly

  17
• Drivers

  17
• In the Event of a Problem

  18
• Warranty Statement

  19
• Introduction

  21
• An Optical Analogy

  22
• Basic Room Acoustics

  22
• 8.1 Standing Waves

  23
• 8.2 Flutter Echo

  24
• 8.3 Early Reflections

  25
• Avoiding Early Reflections

  26
• 8.4 Bass reinforcement

  28
• 8.5 Summary of Recommendations

  31
• Flutter Echo and Standing Waves

  31
• Speaker Placement

  32
• Early Reflections

  32
• 8.6 A Listening Room Example

  33
• Introduction

  34
• 9.1 Sensitivity to Time-Related Information

  35
• "Fast Bass"

  35
• 9.2 Rationale

  36
• Anechoic vs. In-Room Frequency Response

  36
• 9.3 Measurements of Audio Equipment

  37
• A Correlation with Amplifier Measurements

  37
• Loudspeaker Measurements

  38
• Designing for Accurate Bass Reproduction

  39
• Frequency Response Effects

  40
• Listening for Size Distortions

  40
• Transient Response Effects

  41
• 9.4 Conclusion

  42