5
NHT
iC4 ARC In-Ceiling Loudspeaker Installation Guide
Tools You’ll Need:
Pencil
#2 Philips screwdriver
Tape measure
Utility knife
Keyhole saw, jigsaw or rotary saw
Safety goggles
Dust mask
Protective gloves
A ladder
Electric drill with #2 Philips bit
Band-aids
Performance tip:
Consider building a box using plywood behind the speaker. We offer a technical document (Tech Docs) on the nhthifi.
com website recommending the optimal internal volume and how much insulation to place in the box by speaker model. This will help
isolate the speaker sound from bleeding into adjacent rooms, improve bass response, tightness, increase power handling and lower
distortion. Build it solid, use screws and construction adhesive and caulking to air seal it (your box) and insure it will not vibrate, rattle,
fall apart or come loose. Make sure it is supported by the ceiling joists, not the sheetrock!
. Once you’ve selected the desired location(s) for the speakers, begin installing the iCB6 pre-construction bracket(s) between adjacent
ceiling joists. First attach the mounting wings to the bracket by inserting them into the locking plastic tabs in the side of the bracket
(fig.).
2. The wings feature progressively scored sections (”, ”, 2”, 2”, 2”, 3”, 3”) with screw holes spaced in one-inch increments to help
you align the bracket. The iCB6 pre-construction bracket has NHT logos on one side - this side should be oriented away from the dry-
wall – towards the sky. Attach the wings to the joists using the 50mm flathead screws, use two screws for each wing. Cut off the extra
portion of the wing. (fig.2).
Installation: New Construction Continued....
Fig. 1
