Effect of the enclosure (2)
Rear load seen by a loudspeaker can be represented by the equivalent diagram below. Volume velocity which is required to compress or depress the air in a volume is opposite to the sum of volume velocities
. Knowing that ws ,we ,wf are positively directed outside the enclosure, represents the fact that the air while leaving enclosure creates a negative volume velocity, that is a decompression of the air.
