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Table of Contents
1 Introduction ............................................................................................................................ 4
2 Unpacking Instructions .......................................................................................................... 5
Introduction ........................................................................................................... 5
Contents ................................................................................................................ 5
2.1 Opening the Crate .................................................................................................... 6
2.2 Installing the Grilles ..................................................................................................... 7
Orientation of the Felt Anti-Diffraction Mask .................................................. 7
2.3 Replacing Grille Pins ................................................................................................... 7
3 Wiring Instructions .................................................................................................................. 10
Introduction ........................................................................................................... 10
Connecting the Speaker to the Amplifier ....................................................... 10
4 Break-in Period ....................................................................................................................... 11
5 Maximizing Performance ...................................................................................................... 12
Break-in .................................................................................................................. 12
Grille Assemblies ................................................................................................... 12
Speaker Placement and Symmetry ................................................................. 12
Toe-In ...................................................................................................................... 13
Apex™ Couplers .................................................................................................. 13
First Reflection Points ........................................................................................... 14
Corner Treatment ................................................................................................. 14
6 Care of Your Loudspeakers .................................................................................................. 15
Cabinet (Hardwood Finish) ................................................................................ 15
Grille Assembly ...................................................................................................... 15
Drivers ..................................................................................................................... 15
7 Warranty .................................................................................................................................. 16
In the Event of a Problem ................................................................................... 16
Warranty Statement ............................................................................................ 17
8 Room Acoustics and Speaker Position ............................................................................... 19
Introduction ........................................................................................................... 19
An Optical Analogy............................................................................................. 20
Basic Room Acoustics ......................................................................................... 20
8.1 Standing Waves .......................................................................................................... 21
8.2 Flutter Echo .................................................................................................................. 22
8.3 Early Reflections .......................................................................................................... 23
Avoiding Early Reflections .................................................................................. 24
8.4 Bass reinforcement..................................................................................................... 26
8.5 Summary of Recommendations ............................................................................. 30
Flutter Echo and Standing Waves .................................................................... 30
Speaker Placement ............................................................................................. 31
Early Reflections ................................................................................................... 31
8.6 A Listening Room Example ....................................................................................... 32