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
