RBH Sound MRB-70 Owner's manual

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MRB-70

EMERGENCY SUPPORT BRACKET

Figure 1

For assistance, please call 800-543-2205 or check http://www.rbhsound.com for updated instructions.

Installation Instructions

PACKAGE CONTENTS: 1 each Round mounting bracket; 2 each Rails and Screws.

This bracket is required for use in commercial applications in drop tile ceilings. The bracket will act as a protection device in the

event of breakdown of the ceiling tile, keeping the speaker from falling to the ground. The bracket is made speciﬁcally for RBH

brand in-ceiling 70 volt speakers.

The MBR-70 consists of a round bracket and two rails designed to be used with suspension ceilings. The rails will ﬁt either 24-inch

or 600mm ceiling tiles. They are designed to rest on top of the tile without the “V” end of the rail grabbing the grid struts. In

the event that the tile fails, the “V” end of the rail will grab the strut, holding the speaker in place. The MBR-70 includes all parts

needed for proper installation.

Figure 2

Figure 3

STEP 1

Start by determining where each speaker will need to be

installed. Attach each rail to the ring with the screws where

necessary. This is shown in Figure 1.

STEP 2

Place “V” end of each rail on the grid strut as shown in

Figure 2.

STEP 3

Place tile into place in the ceiling so that the rails are now

resting on the top side of the tile. Using a utility knife or

other tool, cut a hole in the ceiling tile. The inside of the

MBR-70 ring can be used as a guide as it is the same diameter

that is needed to install the speaker. Figure 3 shows the

bracket installed properly and ready for the speaker.

STEP 4

Lift the speaker up and into the hole in the tile. Using a

screwdriver or powerdriver, twist the screws that attach to

the mounting legs, causing them to swing out and pinch both

the MBR-70 ring and the tile. Attach the seismic tie to the

secondary support of the speaker enclosure. For proper switch

settings, please refer to the owners manual supplied with the

speaker. Slide the grille into place.