ducts, cross-bracing etc. Absence of a crawl space will require
greater study of observable clues and may also require the use of
inspection holes and inspection tools (camera, mirror, ashlight,
etc.). Use an “electronic stud nder” to locate the positions of
the joists or studs. We recommend that the edge of the speaker
holes be at least 3/4" (19mm) away from joists or studs whenever
possible to allow clearance for the toggle clamps.
Once the speaker locations are established use the cardboard
template or the plastic compass provided with your speaker to draw
the speaker cut-out. The hole diameters for the various speakers
are marked on the compass. The cardboard templates may also
be used as a visual aid for placement of the speakers. To do this,
temporarily hold the templates in place with a push tack or tape.
Using the proper tool cut the appropriate sized
hole in the ceiling. On drywall, clean cuts can be
made with a drywall saw. Make sure to clean the
excess debris from the front face of the hole to
ensure a ush t.
If the cable has not yet been run, do so now that you have better
access to the ceiling. Once the speaker cable has been run, 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.
To aid in speaker performance, a brous material, such as berglass
or polyester ber, may be placed behind the speaker. This may
also help to reduce unwanted sound from being transmitted into
adjoining rooms. If the 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 batt of
berglass insulation, fabric barrier, or bag over the back of the
speaker. Alternatively you may use
an Insu-Flate ISF-147, which is an
acoustically transparent fabric cover
specically designed for this application.
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 cu ft (21 liters) should be stuffed with
acoustic insulation such as berglass.
As the drawing 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 prior
to installation.
Verify that the speaker ts properly
into the cut-out and then remove the
speaker from the hole.
Connect the wire conductors to the terminals on the back of the
speaker 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.
Note: Single-Point speakers have both the left and right channel
connections on the same speaker. Ensure that both channels are
connected and in phase. An out of phase connection to a single-
point speaker will be immediately obvious when signal is applied
since there will be little if any bass output. If disconnecting one
of the inputs increases the bass output then the inputs are out of
phase.
Insert the speaker into the hole and turn each screw clockwise. The
toggle clamps will rotate outward to engage the ceiling material
as shown. Before tightening the three screws, orient the speaker
toward the listening area. Tighten all the screws.
CAUTION: DO NOT OVER-TIGHTEN THE CLAMPS. Too much torque
may damage the toggle, causing the speaker not to seat securely. A
snug t is all that is necessary to assure proper performance.
The grilles can be painted using multiple light coats of spray paint.
Custom color spray paints are available from specialty companies.
Contact your dealer for more information. The grilles should be
removed from the speaker and painted in a clean environment to
prevent contamination. It is best to go around the grilles and apply
the paint from multiple angles. DO NOT remove the scrim cloth from
the backside of the grille. It is not replaceable.
The mid and high frequency levels can also be adjusted as desired
using the mid frequency (MF) and high frequency (HF) switches.
The MF switch is on the left and the HF switch is on the right, when
looking at the foam surface when the speaker is installed in the
ceiling. Moving the switches to the left decreases the level and to
the right increases the level (See the image above).
Attach the grilles to the speakers and enjoy. Should you wish
to remove the grilles from the speakers pull at the grilles' edge.
Initially there will be signicant resistance because the grilles are
magnetically attached.
WARRANTy - LIFETIME LIMITED
Angstrom Loudspeakers MC will repair or replace any defect in material
or workmanship which occurs during normal use of this product with new
or rebuilt parts, free of charge in Canada, for life from the date of original
purchase.This is a no hassle warranty with no mail in warranty card needed.
This warranty does not cover damages in shipment, failures caused by other
products not supplied by Angstrom Loudspeakers MC,or failures due to
accident, misuse, abuse, acts of God, or alteration of the equipment.This
warranty is extended only to the original purchaser, when purchased through
an authorized reseller and a purchase receipt, invoice, or other proof of
original purchase date will be required before warranty repairs are provided.
Mail in service can be obtained during the warranty period by calling
416-988-
8806
. A Return Authorization number must be obtained in advance and can be
marked on the outside of the shipping carton. This warranty gives you specic
legal rights and you may have other rights (which vary from province to
province). If a problem with this product develops during or after the warranty
period,please contact Angstrom Loudspeakers MC, your dealer or any factory-
authorized service center.
page 2 of 2Install Guide Rev. A
ISF-147
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A
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H
o
m
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Tighten 3
Phillips screws
Clean front
edge of cutout
to ensure a
flush fit.
frameless
For: 6-1/2" & 8" In-Ceiling
