Square, Rectangular or Round

custom silencers are traditionally sized to mount directly on the
discharge of the fan or to match the dimensions of the ductwork. They are
built to suit your application.
Transition pieces can be provided separately or as an integral part on custom
units.
Fan companies often use an expanded, or evase, outlet to reduce
the velocity of the air as it leaves the fan. We added sound absorbing
media to produce a highly effective silencer that is also "pressure
neutral" to the system.
Around-the-Corner
When limited space is a factor, a BAM! around-the-corner silencer provides
the solution. Sound is effectively absorbed as the air is turned 90°;
just put one in where an elbow is needed. They're custom sized to fit your
duct.