AEF-8LFT
2.
Once the speaker locations are established, draw the speaker cut-out with
either the plastic compass that is provided or remove the outer ring from
the cardboard template and draw a circle around this inner cardboard disk.
Instructions for using the template are printed on the speaker template.
Note: The hole diameters for the various speakers are marked on the
compass.
The SE-80SWf has mounting dimensions of 8-5/8" (219mm)
diameter and 3-7/8" (98mm) depth.
Using the proper tool, cut the appropriate sized hole in the wall. On drywall,
clean cuts can be made with a drywall saw. Cut the hole to the inside of the
drawn circle.
3.
As the drawing below shows, the speakers utilize
Toggle Clamps which, after tightening, hold the
speakers in place. Ensure that the toggle clamps
are rotated into their “Home” position so they will
clear the edge of the cut-out. Note: The speakers
are shipped with the toggles in their Home position.
Verify that the subwoofer fits properly into the cut-out. If the hole should
have been cut a little too large the flange on the speaker should cover this.
Remove the speaker from the hole.
4.
If the speaker cable has not yet been run, do so
now that you have access to the ceiling or wall's
interior. Note: It is outside the scope of this
manual to detail this portion of the installation.
5.
To aid in speaker performance, a fibrous
material, such as fiberglass or other non-
flammable acoustic material, may be placed
behind the speaker. If the wall or ceiling space
has blown or loose insulation, it is important
to prevent the insulation from entering the back of the speaker. This can be
accomplished by placing a sufficiently large batt of fiberglass insulation or
similar structured material behind the speaker. For in-ceiling installations
where blown insulation is present, a fabric barrier such as our Insu-Flate®
ISF-147 can be placed behind the speaker. The ISF-147 is an acoustically
transparent fabric cover specifically designed to protect the back of the
speaker and prevent debris from interfering
with its proper operation.
For in-wall installations where the walls are
4" (100mm) deep, if insulation is present then
it will be necessary to clear all the insulation
from behind the subwoofer’s magnet.
Placing a rigid enclosure behind the speakers can be done but the enclosure
should be large enough not to degrade the performance of the speaker. Rigid
enclosures of less than 0.75 cuft (21 liters) should be stuffed with acoustic
insulation such as fiberglass.
Where building codes require a fire-rated back box, please contact us or your
dealer for assistance in selecting a suitable enclosure.
One other preparation that can be done, but is not required, is to run a bead
of adhesive caulking at the interface of the drywall and the studs or joists on
either side of the subwoofer opening. For new construction, the drywall can
be bonded to the studs or joists at the time of construction. The adhesive
caulking helps to ensure the most robust installation for the best possible
bass.
6.
Once the speaker cable has been run and the cavity prepared, pull the end
of the cable out of the speaker cut-out, strip back a section of the jacket as
needed, and then expose ½" (13mm) of each conductor.
SPEAKER PLACEMENT
Placement of in-ceiling or in-wall subwoofers should be carefully considered.
Ideally, they should be located where they will provide the best possible
sound and meet one’s aesthetic requirements. It is beyond the scope
of this publication to discuss all of the various aspects of subwoofer
placement. However, this section contains information to guide you in
making good choices. Please contact a professional for assistance if you are
uncomfortable with the planning or installation process.
The AEF-8LFT is optimized for use in small to mid-size home theaters and
distributed audio systems where the room size is approximately 3000 cubic
feet (85m^3) or less. In most cases we recommend two woofers for small
home theater systems and 4 woofers for larger and/or loud applications.
For distributed audio systems, a single woofer may be sufficient for smaller
rooms and where the volume will not be loud. For mid-size rooms 2 woofers
is a better option. For higher volume levels, 4 woofers should be used.
At the most fundamental level, the task of a subwoofer is to energize the
room with low frequency sound. It is most efficient at doing this when
located at a room’s corners, (where three surfaces meet). Therefore one
of the best places for subwoofers is within 36 inches of a corner.
(Options
A, D & G)
in the placement drawing.
Avoid placing them immediately
adjacent to openings such as hallways and entries to other rooms. Also,
avoid placing them in a wall space or confined ceiling space that is shared
with another infinite baffle speaker. It is ok if two subwoofers share the
same wall or confined ceiling space.
Another placement option is to install the subwoofers a distance ¼ of the
RO
TA
TE
Home
Connect the wire conductors to the terminals on the back of the subwoofer
by depressing each spring terminal, inserting the wire into the hole, and
releasing the terminal. Use care to observe the proper polarity (+ & -).
Speakers wired out of phase will exhibit an apparent loss of bass response.
The red terminal is positive (+) and black negative (–).
7.
Insert the speaker into the hole and tighten the four toggle screws. As you
start to turn each screw the toggle clamps will rotate outward to engage
the ceiling or wall material as shown. CAUTION: DO NOT OVER-TIGHTEN
THE CLAMPS. Too much torque may damage the toggle, causing the
speaker not to seat securely. A snug fit is all that is necessary to assure
proper performance. If using a drill with a clutch, the lowest clutch setting
that will turn the screw is usually enough torque.
8.
Attach the grille of your choice and adjust the system controls to optimize
the bass performance.
Should you need to remove the grille, pull the grille forward at its edge. This
can usually be done with one’s fingers but using a thin tool at the edge can
aid in lifting the grille forward. Initially there will be significant resistance
because the grilles are magnetically attached with numerous powerful
neodymium magnets.
ISF-147
SUBWOOFER TIPS & TECHNIQUES
INSTALLATION
