Accessories
RE84 - Ceiling Speaker Enclosure
The protective enclosure for the 8" cone-type loudspeakers
shall be a Bogen model RE84, or equivalent, designed for
recessed installations. It shall be constructed of one-piece
heavy-gauge steel, and shall include a speaker mounting ring.
A foam insert shall be permanently attached to the inner
surface, to prevent metallic resonance. Four combination
1
/2" – 3/4" conduit knockouts shall be provided at 90 degree
intervals, and the unit shall be finished in a rust-retardant
black primer coating. The dimensions shall be:
1
2-
1
/4" dia. x
4-
1/
2
"D.
MR8 - Mounting Ring
The plaster ring shall be a Bogen model MR8, or equivalent,
circular cold-rolled steel unit. It shall be finished in a rust-
retardant gray primer coating, and the dimensions shall be:
1
2" dia. x 3/4"D.
TB8 - Tile Bridge
The load bearing T-bar support shall be a Bogen model TB8,
or equivalent, capable of sustaining the weight of an 8"
speaker, grille and protective enclosure in suspended ceiling
construction. It shall be manufactured of steel and shall be
finished with a rust-retardant galvanized coating. The unit
shall measure: 24"W x 3/4"H x
1
4-3/4"D.
Attenuators
The speaker line attenuator shall be a Bogen model (specify
AT
1
0A or AT35A), and shall permit setting the output
level at loudspeakers on a 25V or 70V line without altering
the amplifier volume setting. The attenuator shall provide a
choice of
1
0 stops and an "off " position, and shall be capa-
ble of controlling up to
1
0-/35-watt speaker systems.
50 Spring Street, Ramsey, New Jersey 07446, U.S.A.
(20
1
) 934-8500 FAX: (20
1
) 934-9832; www.bogen.com
RE84
MR8
TB8
