User's Manual

18
3.3.1 Microphone Installation
Typical microphone installation involves mounting the
unit with the enclosed foam pieces, inside the upper
compartment of the speaker post. The foam will fit
many types of speaker posts and menu boards. If the
microphone must be mounted in a small area, compress
the foam when installing it and closing the speaker post
or menu board. In larger areas, additional foam (not
supplied) must be added. To install the microphone in a
typical speaker post, follow the instructions below and
refer to Figure 16. Installation in a menu board will
be similar, within the menu-board speaker compartment.
 Open the speaker post and remove any
existing equipment, foam or debris. If there
Speaker
Grill
Foam
windscreen
in front of
microphone
Microphone
unit
Cable
Hole
in shelf
Foam
Foam
Foam
is an existing microphone, remove it and
disconnect the microphone cable from it.
 Splice the wires of the audio cable (new or
existing) to the wires of the cable extending
from the microphone unit, according to the
audio system wiring diagram.
 Place the enclosed foam windscreen
against the inside of the metal speaker grill.
 Place the front of the microphone unit flush
against the foam windscreen, centered on the
speaker grill.
 For the best performance, mount the
microphone flush and tight against the foam
windscreen, behind the speaker grill. Pack the
remaining pieces of foam around the top, bottom
and back of the microphone unit, so it will be
held in place against the speaker grill when the
compartment is closed. If required, add extra
foam (not supplied) on the sides of the
microphone to fill the enclosure.
IMPORTANT! In the speaker post or menu board, fill all the holes and openings in
the panel that separates the speaker and microphone, with insulating foam sealant
(“Great Stuff” expanding polyurethane foam or equivalent, available at home
improvement stores).
CAUTION: Do not use the foam sealant in a wet area, or allow it to come in
contact with water. See can for precautions and safety information.
 Close the speaker post.
Figure 15. Microphone
Figure 16. Microphone unit and
foam inserts shown in typical
speaker post installation