![Angstrom INDF 6.5W Manual Download Page 3](http://html.mh-extra.com/html/angstrom/indf-6-5w/indf-6-5w_manual_2943746003.webp)
Speaker Installation
As Viewed from Above
1
2
3
4
Rev.A
page 3 of 4
to reach the electronics. Having to add extra cable later can be
tedious and time consuming.
Avoid bundling speaker cables parallel to electrical cables for
extended lengths. Though the impedance is low and the likelihood
of interference low, this may help reduce hum and RF interference.
When securing the cable, use care not to staple or nail through the
electrical conductors. Doing so could result in a short that might
damage the electronics.
When connecting your speakers, make sure proper polarity
(phasing) is maintained. Simply put, this means ensuring the
same wire which is connected to the positive terminal of the
amplifier has its other end connected to the positive terminal of
the speaker. It is important to check this on all speakers. If the
connections on one of the speakers are reversed, (out of phase)
the sound quality will be impaired.
INSTALLATION
If the drywall has not yet been installed a Rough-in-Bracket (RIB-
LCR) may be used to reserve the speaker location on the wall.
The RIB-LCR brackets are available from the distributor or dealer
where the speakers were purchased. When these brackets are
used the holes are cut when the drywall is installed. The cable can
be tied off on the bracket after securing the cable to a nearby joist.
If the drywall is installed and the speaker locations have not yet
been established, then do so now. Assess the wall for possible
concealed obstructions such as wiring, plumbing, etc. Inspect the
backside of the wall, the attic, and/or the crawl space if available
for clues to possible obstructions. Use inspection holes with
inspection tools (camera, mirror, flashlight, etc.) if absolutely
necessary. Use a “stud finder” to locate the positions of the studs.
The
INDF 6.5W
is shipped with a Clamp Ring for clamping the
speaker to the wall. The edge of the speaker opening must be at
least 1/2" (13mm) away from a stud if the speaker is installed in
the portrait orientation.
Once the speaker locations are established use the cardboard
template (the outside of the inner cardboard rectangle) to mark
the speaker cut-out. The dimensions for the cut-out are listed
in the chart on the previous page. Using the proper tool, cut the
appropriate sized hole in the wall. On drywall, clean cuts can be
made with a drywall saw.
If the cable has not yet been run, do so now that you have access
to the wall’s interior.
To aid in speaker performance, a fibrous material, such as
fiberglass, may be placed behind the speaker. This may also help
to reduce unwanted sound from being transmitted into adjoining
rooms. If the wall space has blown or loose insulation, care must
be taken to prevent the loose insulation from entering the back
of the speaker. This can be accomplished by placing a batt of
fiberglass insulation over the back of the speaker.
Install the frame and retro ring assembly
by passing the metal retro ring through
the cut-out as illustrated in
figures 1
& 2 to the right.
The frame should fit
cleanly, without interference, in the cut-
out hole. If the hole is a little small then
trim the hole as needed. Lightly tighten
the screws to secure the retro ring
against the back of the wall
(see fig. 3).
Use care not to over-tighten the screws
or the frame may become distorted.
Note: use only the 4 outer holes for
mounting the frame.
Pull the end of the cable out of the wall,
strip back a section of the jacket as
needed, and then expose ½" (13mm) of
each conductor. Connect the wire to the
terminals on the back of the speaker
assembly, observing polarity (+ & -).
Insert the speaker into the frame and
install the eight screws
(see fig. 4).
The Mid-Frequency (MF) control
allows for a relaxed, neutral, or forward
midrange presence.
The High-Frequency (HF) control
affects the uppermost audible range
to create soft, neutral, or articulate
detail.
PAINTING THE GRILLE
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.
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
significant resistance because the
grilles are magnetically attached.