NHT IW4 Speaker User Manual


 
6. If the iW4 bezel frame and grille are to be painted in the wall, paint
now before installing the baffle (see "Painting" on the last page).
7. NHT offers iWF foam blocks to optimize the performance if your
iW4. See the web site for more information: nhthifi.com Refer to the
diagram (fig. 6) for orientation of the foam blocks. Insert one of the 4"
x 4" x 8" foam blocks vertically through the speaker cutout. Push this
block down below the edge of the cutout. Insert the second 4" x 4" x
8" foam block and push up above the top edge of the speaker cutout.
Bend one of the 4" x 4" x 16" foam blocks into a U shape and push
down into the wall horizontally so that it is below the speaker cutout.
Make sure that there is a good seal with the edge of the foam and
both the left and right wall studs. Repeat for the upper 4" x 4" x 16"
foam block. The foam should also make a good seal around the
speaker wires.
8. Add a 26" long piece of unbacked R19 fiberglass insulation to the
enclosure. (Be sure to wear protective gloves and goggles when han-
dling fiberglass to avoid contact with the fiber). You may need to cut
a 11" wide by 7" high rectangular hole in the center of the piece of
fiberglass to make room for the crossover on the back of the baffle.
9. Connect the speaker wire to the spring posts on the iW4 baffle,
making sure to observe correct polarity (see "Connections").
10. Attach the baffle to the bezel with (12) 4 x 20mm recessed head
screws that line up with the 12 holes in the bezel (fig.7). Exercise cau-
tion not to damage the drivers. Tighten screws snugly, making sure
not to over-tighten, as this may compromise the fit of the baffle. The
use of power screwdrivers is not recommended.
11. Attach the metal grille by inserting it into the bezel.
1
2
1
2
34
34
12
12
2 - 3 inches
4 - 5 inches
Cutout
Horizontal
Cutout
Vertical
Foam
Foam
Stud
Stud
Stud
Stud
Foam
Foam
Foam
Foam
Foam
Foam
fig.6
fig.7