background image

3

NHT 

iiW4 ARC In-Wall Loudspeaker Installation Guide

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 (NHT referred or not) possesses sufficient skill, the proper tools, 

knowledge of local fire and building codes, and a familiarity with the structure of the building (especially wall and/or ceiling materials, 

layouts, electrical and plumbing lines, etc.).

With the above said, we know there are capable do-it-yourselfers.  If you are one of them and want to install the speaker on your own 

or with the help of an expert friend, read on.  If you have questions or need assistance at any time before, during or after the installation 

or about the operation of you new speakers, we’re here to help.  Finally, like our fathers told us, measure twice and cut once.

First Paint Warning: 

 NHT recommends that you use a capable, professional painter only to paint this speaker grill (if necessary to per-

fectly match the wall or ceiling).  Latex paint will definitely clog the micro-perforated grill holes and constrict the speaker’s performance 

capability.  Contact us if you need a new grill cover because yours is plugged up with paint.  Unfortunately they are not free.

Placement

NHT 

ARC 

series of in-ceiling and in-wall speakers are designed for installation in sheetrock, plaster and lath, wood and material combina-

tion (sheer walls if building codes allow) ceilings up to 2 /4” thick almost always between standard wood joists. Their moisture resistant 

drive units, 

ARC 

frames and stainless steel hardware allow them to be installed in moisture prone interiors and protected exterior envi-

ronments such as bathrooms, indoor swimming pool rooms, above covered porches, sauna rooms and under eave structures. Exposed 

outdoor use is not recommended.  We make specific “All-Weather” Outdoor speakers for this application.

Spend some time considering placement prior to installing the speakers. Once they are installed, they are permanent, so their location 

should be selected carefully.  When possible, locate the speakers at a minimum -2 feet from adjacent sidewalls and ceilings to allow 

them to radiate over the widest possible area. If ceiling mounted, the speaker should face the listening area directly.  The speakers 

should be mounted on a flat surface to ensure a good seal between the iW4-

ARC

 chassis and the mounting surface – the speaker’s frame 

is rigid and will not flex!  For the best stereo effect, position the speakers so that they are equidistant from the most likely listening area. 

If the iW4-

ARC

 is used in-wall or in-ceiling speakers as rear (surround or back) channels in a home theater system, make sure to install 

them behind the listening for best results. If you wish to get an idea how they will look, try taping the supplied cutout templates to the 

ceiling or print to scale one of the images from our website full-size if possible and tape to the ceiling (maybe Kinko’s will do this for 

you).  For more information about home theater speaker placement recommendations, try Dolby Labs website at:  www.dolby.com/us/

en/consumer/setup/connection-guide/home-theater-speaker-guide/index.html

Summary of Contents for iW4-ARC

Page 1: ...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...

Page 2: ...here to help Our telephone number is 707 747 0122 Our web address www nhthifi com What s In The Box 1 iW4 ARC speaker assembly 1 Metal grill 1 Cardboard Cutout Template Before we start please conside...

Page 3: ...to 2 1 4 thick almost always between standard wood joists Their moisture resistant drive units ARC frames and stainless steel hardware allow them to be installed in moisture prone interiors and protec...

Page 4: ...attach the mounting wing ends to into the locking plastic tabs For horizontal orientations use the tab lock on the side of the mounting wings fig 2 In each case screw the ends of the mounting wings t...

Page 5: ...tandard 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 and high rise developmen...

Page 6: ...ings 4 5 x 50mm flathead wood metal screws 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 solid...

Page 7: ...in the side of the bracket fig 3 2 The wings feature progressively scored sections 1 1 2 2 2 3 3 with screw holes spaced in one inch increments to help you align the bracket The iW4B pre construction...

Page 8: ...on cut the drywall so it butts up to the protruding lip of the mounting bracket as you would cut out for a ceiling light can or J box Once installed the lip of the speaker chassis will extend about in...

Page 9: ...a pair pack and is only suit able in 2 x 4 studded walls Available on nhthifi com 7 Begin to tighten the screws that at first rotate the dog legs out 90 and then start to move downwards to clamp the w...

Page 10: ...ly 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...

Page 11: ...eyond the perimeter of the cutout to hide minor cutting imperfections 4 If the wall or ceiling is constructed of lath and plaster outline the cutout area with masking tape to help prevent plaster crac...

Page 12: ...emselves fig 8 8 Tighten each mounting screws a little at a time like lug nuts on a car wheel until each one is snug making sure not to over tighten as this may compromise the fit of the speaker assem...

Page 13: ...ass and the lack of a well defined stereo image indicate incorrect speaker phase the and are reversed on one speaker Optimizing Sonic Performance Bass response is smoothest when the speaker is mounted...

Page 14: ...up nicely Avoid harsh cleaners Let dry completely Service Support Troubleshooting Contact the NHT Authorized Reseller who sold you the products or Contact NHT by telephone go online at www nhthifi co...

Reviews: