Enclosure Installation - NHT iWS Owner's Manual

Tech Tips: Pre-Wiring for New Construction
1. For best results, avoid running speaker wire near AC wiring, as it may induce a 60Hz hum in the audio signal. It's a
good idea to run the speaker wire after the electrical wiring has already been completed, so that you can route the speak-
er wire at least three feet away from the electrical wiring. If speaker wire and AC wiring must run parallel, install the wire
within a metal conduit. Note that low-voltage wiring (doorbell, intercom, telephone, security, etc.) are unlikely to induce
hum and can typically be run parallel to speaker wire with no detrimental effects.
2. When drilling holes through wall studs or ceiling joists, use a drill bit that is at least as wide as the speaker wire that
will be routed through them. Always drill through the center of the stud or joist. If the hole must be drilled within one inch
of the edge of a wall stud, add a nail plate to the drywall side to protect the wire from possible nails and screws put in the
wall later. Line up the holes in the studs or joists as you go, so that pulling the wire through them will be easier.
Enclosure Installation: New Construction (unfinished walls)
Note: If the bezel and grille are to be painted to match the wall, they must be painted first before being installed. See
"Painting" for further instructions.
1. Locate the centerline of the studs that the iWS cabinet is to be installed between. For a 2 x 4 that is 3 5/8" deep, this
will be 1 13/16" from one surface. Locate and mark this point on the inside surface of each of the two studs in at least two
locations. With a straightedge, connect these two marks to form the centerline of the 2 x 4.
2. Decide how high you are going to mount the iWS from the floor. Make sure to leave room for
the bezel to clear any baseboard that may be applied over the drywall. Higher up is safer from
this standpoint. Once you have determined the vertical location of the iWS, measure 12" up from
the bottom of the iWS. (Fig. 1) Make a mark on the 2 x 4 centerline at this location. Repeat for
the other 2 x 4. Repeat for both 2 x 4s at a height of 24" from the bottom of the iWS. Drill a 3/8"
hole through the 2 x 4s at each of the four marked locations. Try to keep the drill square to the
surface of the 2 x 4.
3. Insert the iWS cabinet into the wall between the studs. If the subwoofer is not going to be
mounted on the bottom of the wall, raise it to the desired height by placing blocks of wood under-
neath. Do not remove the woofer protector board. Put one of the supplied ¼" washers on the ¼-
20 x 2.25" machine screw. Push this screw through the 2 x 4. Start this screw several turns with
a HAND SCREWDRIVER. Repeat this step for the other three screws. Tighten all four of the
screws until the washers are just touching the 2 x 4. Make sure that the iWS cabinet is centered
between the front and rear surfaces of the 2 x 4s. Tighten the screws moderately. Once the foam
on the cabinet has been crushed some, stop.
If the iWS is going to be installed in the corner of the room where you may not have access to
the opposite side of the stud, or the stud is too thick for the screws, the threaded insert in that
side of the iWS cabinet MUST be filled with caulking. Failure to do this will cause air leaks, noise
and poor performance from the subwoofer.
4. Complete the pre wiring before the drywall goes up (see "Tech Tips: Pre Wiring for New
Construction"). Connect the speaker wire to the binding posts on the top of the enclosure, mak-
ing sure to observe correct polarity (see "Connections"). It's a good idea to leave an extra few
feet of speaker wire.
6
fig.1
12"
12"
fig.2
Enclosure
Drywall
Wood Cover
(cutout template)