BG Corp 2005
7
Preparation for the Installation of Radia Series Loudspeakers
1. For the rear cavity behind the loudspeaker, allow for a minimum of
2 cubic feet and no more than 2.5 cubic feet for optimum
performance. A good rule of thumb is to use an enclosure no
smaller than a standard 2 x 4 stud-bay with 16” on-centers and 8
feet tall. Prepare any cabinet installation with at least this
enclosure size in mind. Enclosures such as 2 x 6 (or larger) can
be used with no detrimental effects however smaller enclosures
will limit low frequency performance. Sealing holes and joints
whenever possible will also enhance low frequency performance.
In addition, utilizing an open-cell compressible weather stripping at
the lip of the mounting flange is also recommended to minimize
unwanted vibrations.
2. Always fill the entire enclosure with slightly compressed fibrous
material as would be found normally in a loudspeaker enclosure
(Fiberglas insulation, Dacron, Miraflex, wool, etc.).
3. Whenever possible, prepare for the installation by first installing a
shear surface beneath the drywall. R-Series loudspeakers are
relatively heavy and are capable of producing high sound pressure
levels. A ¼” or 3/8” plywood sub surface with a loudspeaker cutout
will also enhance the system’s performance.
4. When installing the R-75i planar ribbon with its companion R-8i
woofer, they must be mounted within two feet of one another, in
the adjacent stud bay, for proper performance.
Installation
