TOA Electronics HB-1 Suspending the Unit in the Ceiling, Front grille installation

6.3. Suspending the Unit in the Ceiling

When suspending the HB-1 speaker in the ceiling, remove the lock tabs and suspend the unit using bolts or wires at the resultant 12 mm-diameter holes. The front grille can be mounted directly to the ceiling panel using the supplied mounting bracket.

12 mm-diameter hole

Remove lock tabs.

6.3.1. Suspending the unit			[Bolt suspension]
[Wire Suspension]
Wire	Ceiling		Bolt	Ceiling
Mounting bracket			Mounting bracket
		HB-1			HB-1

Ceiling panel Front grille Ceiling panel Front grille

6.3.2. Front grille installation

Step 1. Before mounting the front grille directly to the ceiling panel,

Tapping screw (supplied with the unit)

Step 1-1.Attach the four supplied stud holders to the mounting bracket using the four supplied tapping screws.

Step 1-2.Detach the stud receptacles from the main speaker unit and attach them to the stud holders.

Step 2. Mount the mounting bracket to the ceiling panel. (Follow Steps 1.– 4. on P. 4 "Flush Wall or Ceiling Mounting.")

Stud receptacle (Remove from the unit)

1-2

Stud holder (supplied with the unit)

1-1

Mounting bracket

Use the screws removed when detaching the stud receptacles.

10 mm to the inside of

the mounting hole 20 mm to the outside of the mounting hole

Step 3. Attach the masking tapes to the ceiling panel as shown on the right to prevent the white ceiling panel from being seen through the front grille meshes.

10 mm to the inside of the mounting hole

Mounting hole (shadowed area)

Step 4. Align the front grille with the speaker so that the four stud screws align with the unit's corresponding stud receptacles, then push the grille onto the speaker.

20 mm to the outside of the mounting hole

Masking tape (shorter) Masking tape (longer)

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