Avalon Acoustics AVALON ASCENDANT manual

Page 23

It is not necessary to acoustically treat the entire room to achieve good results. Strategic treatment of specific locations can realize considerable benefits. Remember that when sound waves reflect from a flat surface, the angle of reflection is equal to the angle of incidence, just as a mirror reflects light waves. Therefore, the most important location for sound absorbing material is the point where the sound waves reflect to the listener (see Figure 8.2).

Figure 8.1 - The reflected sound must travel further than the direct sound, and therefore reaches the listener at

a later time.

Figure 8.2 - The sound is reflected at the same angle that it struck the surface; i.e., Angle X = Angle Y. Since light waves obey this same rule, a mirror can be used to find the point that can be acoustically damped to avoid early reflections.

23

Image 23
Contents Page Page Table of Contents Page Introduction Introduction ContentsUnpacking Instructions Opening the Crate Orientation of the Felt Anti-Diffraction Mask Installing the GrillesReplacing Grille Pins Page Connecting the Speaker to the Amplifier Wiring InstructionsBreak-in Period Grille Assemblies Speaker Placement and SymmetryMaximizing Performance Break-inApex Couplers Toe-inCorner Treatment First Reflection PointsCabinet Care of Your Avalon LoudspeakersWarranty Statement WarrantyPage Introduction Room Acoustics and Speaker PositionAn Optical Analogy Standing Waves Avoiding Early Reflections Flutter EchoEarly Reflections Page Bass reinforcement Page Summary of Recommendations Speaker Placement Listening Room Example Sensitivity to Time-Related Information Accuracy of Bass ReproductionAnechoic Frequency Response vs. In-Room Frequency Response RationaleCorrelation with Amplifier Measurements Measurements of Audio EquipmentDesigning for Accurate Bass Reproduction Loudspeaker MeasurementsListening for Size Distortions Listening QualitiesFrequency Response Effects Transient Response Effects ConclusionFeatures Specifications