Wilson Audio WATCH Center Channel Series 1 - Manual (Page 27)

27
tion occurs.
S e c t i o n 2 . 1 - R e s o n a n c e
Resonance in listening rooms is generally caused by two sources:
• The structures within the listening room
• The volume of the air itself in the listening room
S t r u c t u r a l R e s o n a n c e
Structural resonances are familiar to most people as buzzes and rattles, but
this type of resonance usually only occurs at extremely high volume levels and is
usually masked by the music. In many wood frame rooms, the most common type
of structural resonance problem is “booming” of walls and floors. You can test for
these very easily by tapping the wall with the heel of your hand or stomping on the
floor. If it is a wooden floor, this is done to detect the primary spectral center of
the resonance. To give you an idea of what the perfect wall would sound like,
imagine rapping your hand against the side of a mountain. Structural wall reso-
nances generally occur in the low to mid-bass frequencies and add tonal balance
fullness to any system played in that room. They, too, are more prominent at loud-
er levels, but their contribution to the sound of the speaker is more progressive.
Rattling windows, picture frames, lamp shades, etc., can generally be silenced with
small pieces of caulk or with blocks of felt. Short of actually adding additional lay-
S
E C T I O N
2 - I
N
Y
O U R
R
O O M