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NHT 

iC4 ARC In-Ceiling Loudspeaker Installation Guide

iCB8 Mounting Bracket

Aluminum Mounting Wings

Screws

Getting Wired

Proper loudspeaker wiring methods and type and quality of wire are essential to good sound.  At a minimum, 6 AWG 2-conductor 

speaker wire is recommended for runs up to 50 feet, 4AWG for longer runs, 2AWG for really-really long runs. When permanently in-

stalling wire inside walls, be sure to use wire that is rated for in-wall use and has special jacketing for fire prevention. In the U.S., some 

of the U.L. standards are CL-2, CL-3 and CM wire, and in Canada the CSA standard is FT4 wire.  The wire should be run in accordance 

with National Electrical Code best practices to meet any applicable local or national building codes.  Be forewarned, MDU, high-rise, com-

mercial and educational buildings have additional requirements and restrictions.  For best results, avoid running speaker wire near AC 

wire, as it may induce noise in the audio signal. It’s a good idea to run the speaker wire after the AC wiring has already been completed, 

so that you can route the speaker wire away from AC lines or cross at 90˚. If speaker wires and AC wiring must run parallel, install the 

speaker wire within a steel conduit or use shielded speaker cable. Note that low voltage wiring (doorbell, intercom, telephone, security, 

etc.) can also induce hum.

Drill with Caution!

Remember, these are only suggestions.  There are building codes and best practices to be followed – be sure you are familiar with them. 

When drilling holes through wall studs or ceiling joists, watch your fingers, use a drill bit that is (sharp) wider than the speaker cable that 

will be routed (pulled) 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. Maybe you consider hiring a professional 

installer and see a blockbuster at the local multi-plex with some old friends instead.

Installation: New Construction (ceilings not installed – you see ceiling joists when you look up)

Installation in new construction is a three-step process.  () Install the appropriate pre-construction brackets in the chosen locations 

according to your well though-out plan.  (2) Run your speakers wires to these locations according to your well though-out wiring plan. 

(3) Install the speakers after the ceiling and trim is installed and painted but just before the carpet or flooring is installed.

The iCB8 kit is the pre-construction bracket you’ll use for the iC4-ARC speakers.  Each box will contain a mounting kit for one speaker, 

which includes:

() iCB8 Mounting Bracket

(2) Aluminum Mounting Wings

(4) 5 x 50mm flathead wood/metal screws

Содержание iC4-ARC

Страница 1: ...acement 3 Wiring 4 Getting Wired 5 Drill with Caution 6 Installation New Construction ceilings not installed you see ceiling joists when you look up 7 Installation Existing Construction retrofitting finished ceilings 8 Painting 9 In Use 10 Optimizing Sonic Performance 11 Maintenance 12 Service Support Troubleshooting 13 Professional Specifications ...

Страница 2: ...lt a professional to install this speaker Find an Installer near you by visiting www nhthifi com navigate to the Where to Buy section or visit www cedia org to find a CEDIA installation professional One last word of advice It is up to you to insure that the installer you choose NHT referred or not possesses sufficient skills proper tools and knowledge of local fire and building codes and has a fam...

Страница 3: ... or print to scale one of the grill images from our website full size and tape it to the ceiling maybe Kinko s will do this for you For more information about home theater speaker placement try Dolby Labs website at www dolby com us en consumer setup connection guide home theater speaker guide index html Wiring Retrofit Installations or New Construction How you wire is an important subject If you ...

Страница 4: ...induce hum Drill with Caution Remember these are only suggestions There are building codes and best practices to be followed be sure you are familiar with them When drilling holes through wall studs or ceiling joists watch your fingers use a drill bit that is sharp wider than the speaker cable that will be routed pulled through them Always drill through the center of the stud or joist If the hole ...

Страница 5: ...hesive 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 1 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 locki...

Страница 6: ...rywall so it butts up to the protruding lip of the mounting bracket as you would cut out for a ceiling light can Once installed the lip of the speaker frame will extend about inch beyond the perimeter of the bracket lip to hide minor imperfections in the cutout fig 3 5 After the ceiling trim work is installed and the painting is complete but just before the carpet or flooring is installed install ...

Страница 7: ... the back of the speaker 7 Begin to tighten the screws that at first will rotate the dog legs out 45 and then they will start to move downwards to clamp the ceiling and bracket Tighten the screws carefully but snugly making sure to not over tighten as this may compromise the fit of the speaker assembly The use of power screwdrivers is not recommended but if you must set the toque ratchet setting a...

Страница 8: ...sistance while drilling you should stop immediately Do not install the speaker into a drop ceiling T Bar or soft ceiling without a proper backing board to spread the load as this type of construction will not support its weight You will not need the iCB6 pre construction bracket nor will you be able to install it if you wanted to The speaker is designed to mount securely without it assuming you do...

Страница 9: ...n the back of the speaker assembly that will swivel out 45 and lower to sandwich the speaker assembly in place between its protruding outer frame and the rear surface of the drywall Begin this phase by being sure the dog legs are rotated sideways like the speaker came packed so that the body of the speaker assembly can slide through the mounting bracket Exercise caution not to damage the drivers t...

Страница 10: ...location Use adhesive caulk and extra screws when attaching the drywall to the joists around the speaker Additionally once the speaker cutout has been made in the drywall add a strip of a high quality non hardening construction adhesive type caulk where the drywall meets the joists and cross braces Also for more controlled bass response add code approved fire resistant insulation to the ceiling ca...

Страница 11: ...you the products or Contact NHT by telephone go online at www nhthifi com and navigate to the Service Center area for more information Professional Specifications Average Impedance 8Ω Recommended Power 20 150W Max RMS Power Handling 150W Coverage to 60 off axis Cutout dim 10 50 diameter 8 1 2 Depth behind the wall 4 81 4 13 16 Finished dim 11 ...

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