Placing The Subwoofer - Dynaudio AIR 15 Reference Manual

Placing the subwoofer

Overview
Placement on the floor
In the corner
Adjacent to wall
Free standing
Subwoofer placement on the floor
Under normal conditions, the subwoofer is placed di-
rectly on the floor. This is taken into account in the basic
design and the basic settings of the AIR system.
Subwoofer placement in the corner
This is a π/2 radiation, which yields a gain of 18 dB in
the frequency range where the monitor is considered to
be omnidirectional.
Most standing waves have their maximum in the cor-
ners of the room.
The placement of the subwoofer in the corner may
cause uneven sound distribution of the bass – espe-
cially if the room has a cubic or shoe-box shape (i.e., if
all opposing walls are in parallel).
The corner position is only preferable if the opposing
surfaces in the room are not in parallel.
Dynaudio Professional AIR reference manual – 2014-09-28
Advantages
Gain of bass response
Gain of bass response
Position can be optimized with regard to stand-
ing waves
Subwoofer placement adjacent to a wall
This is a π radiation, which yields a gain of 12 dB in the
frequency range where the monitor is considered to be
omnidirectional.
This position adjacent to a wall is commonly used
and can lead to good results. However, the subwoof-
er should not be placed in the middle or in the quarter
points between two side walls if these are in parallel.
Free standing subwoofer
This is a π radiation, which yields a gain of 6 dB in the
frequency range where the monitor is considered to be
omnidirectional.
The free standing position is highly recommended for
all cubic and shoe-box shaped rooms.
In any case, avoid placing the woofer on the half or
quarter lines between walls.
Disadvantages
Excitation of most standing waves in the room,
hence very uneven sound distribution
Excitation of several standing waves in the
room, hence very uneven sound distribution
It may take up space on the floor
Checking and optimizing monitor placement
59