NHT IW1 Speaker User Manual
Contents
1. IW1 IW2 iW3 In Wall Loudspeakers OWNER S MANUAL Now Hear This 527 Stone Road Benicia CA 94510 800 NHT 9993 Specifications System Type Driver Complement Crossover Response Sensitivity Impedance Recommended Power Inputs Weight Cutout Dimension Bezel Dimension Depth behind wall Finish System Type Driver Complement Crossover Response Sensitivity Impedance Recommended Power Inputs Weight Cutout Dimension Bezel Dimension Depth behind wall Finish System Type Driver Complement Crossover Response Sensitivity Impedance Recommended Power Inputs Weight Cutout Dimension Bezel Dimension Depth behind wall Finish iw1 2 way in wall design 6 5 polypropylene cone woofer 1 fluid cooled soft dome tweeter coaxially mounted 2 4KHz 18dB octave high pass and 12dB octave low pass 62Hz 20KHz 3dB 86dB 2 83V at 1M 8 ohms nominal 10W ch minimum 100W ch maximum spring clips 7 lbs each 10 1 4 H 8 1 8 W 11 3 8 H 9 1 4 W 3 1 4 Matte white paintable iw2 3 way in wall design 6 5 long throw polypropylene cone woofer 2 1 25 fluid cooled cloth dome midranges 0 75 fluid cooled cloth dome tweeter 4KHz and 1 7KHz 12dB octave High pass 12dB octave band pass and 12dB octave low pass 62Hz 20KHz 3dB 86dB 2 83V at 1M 8 ohms nominal 10W ch minimum 125W ch maximum Professional grade spring posts 72. the frame will extend out about 1 inch beyond the perimeter of the cutout to hide minor imperfections in the cutout 5 If the NHT in wall loudspeaker assembly and grille are to be painted to match the room color paint them now before installing the baffle see Painting 6 After the drywall is complete install the frame The frame attaches to the bracket via six plastic mounting clamps on the back of the frame that swivel to sandwich the drywall between the speaker assembly and the clamps fig 4 First rotate the mounting clamps inward so that the body of the frame can slide through the mounting bracket Tighten the screws snugly making sure not to over tighten as this may compromise the fit of the frame The gasket on the drywall side of the speaker assembly lip reduces unwanted vibrations against the drywall and will compress slightly to allow the frames lip to rest flush against the ceiling The spring loaded mounting clamps pro vide tension once installed 7 Connect the speaker wire to the spring posts on the back of the baffle making sure to observe correct polarity see Connections 8 Put the baffle into the frame so the holes on the baffle line up with the holes in the center of the raised bosses on the frame fig 5 Push each 4 x 16mm screw through the holes on the baffle and into the hole on the frame and tighten it by hand temporarily so that the baffle and the frame stay togeth er Once all the screws are s
3. 1 4 bit Drill pms fig 6 Then cut out the wall section with a utility knife or keyhole saw following the lines traced around the mounting template If the wall is painted or wallpapered use the keyhole saw 4 lf the wall is constructed of lath and plaster outline the penciled marks with masking tape drill the four corners with a 1 4 drill bit and use a utility knife to cut through the plaster down to the lath Use a saber saw with a metal cutting blade or a pair of tin snips to gently cut through the lath being careful not to vibrate plaster off the wall 5 If the frame and grille are to be painted in the wall paint now before installing the baffle see Painting 6 Now install the frame The frame attaches to the wall or iWB brack et via six plastic mounting clamps on the back of the frame that swiv el to sandwich the drywall between the speaker assembly and the clamps fig 7 First rotate the mounting clamps inward so that the body of the frame assembly can slide through the wall Tighten the screws snugly making sure not to over tighten as this may compro mise the fit of the frame The gasket on the drywall side of the frame reduces unwanted vibrations against the drywall and will compress slightly to allow the frames lip to rest flush against the wall The spring loaded mounting clamps provide tension once installed 7 Connect the speaker wire to the spring posts on the back of the baffle
4. NHT in wall loudspeakers are designed to handle a wide range of listening levels but every speaker has limits It is important to use common sense and listen for signs of possible distress from the speakers Underpowered amplifiers are most often the cause of speak er damage For example a 60 watt amplifier runs out of power when called upon to produce more than 60 watts and the resulting dis tortion can damage the speaker If you tend to listen at high volume levels more powerful amplifiers are preferable because they are less likely to run out of power Noticeable distortion or harsh breakup is an indication that either your amplifier or your speakers are running beyond their capacity and the volume should be decreased If you can feel any heat emanating from the woofer or tweeter reduce the level immediately Speaker damage most often occurs from sustained high volume levels not from transient sounds or brief musical peaks Excessive boosting of bass treble or equalizer controls can worsen the problem and is not recommended E Maintenance NHT in wall loudspeakers require minimal maintenance under normal use The grille and frame may be cleaned using a damp cloth or a mild non abrasive cleaner Do not expose the speaker to direct sunlight high temperatures or moisture Do not attempt to clean the actual drivers Limited Warranty Valid Only in the U S A Warranty Period For the period of 5 years for parts and 5 years for labor
5. and NHT will not be liable for incidental or consequential damages NHT limits its obligations under any implied warranties under state laws to a period not exceeding the warranty period Some states do not allow limitations on how long an implied warranty lasts and some states do not allow the exclu sion or limitation of incidental or consequential damages The above limitations or exclusions may not apply to you This war ranty gives you specific legal rights and you may have other rights which vary from state to state To Obtain Service NHT has appointed a number of authorized service companies throughout the USA should your product ever require service To receive warranty service you will need to present your sales receipt showing place and date of original owner s transac tion To find the name and address of the nearest authorized NHT service location call or write Customer Service Department NHT 527 Stone Rd Benicia CA 94510 1 800 NHT 9993 648 9993 www nhthifi com Keep this warranty with your sales receipt Record date and place of purchase for future reference
6. lbs each 10 1 4 H 8 1 8 W 11 3 8 H 9 1 4 W 3 1 4 Matte white paintable iW3 3 way in wall design 6 5 long throw aluminum cone woofer 2 1 25 fluid cooled aluminum dome midranges 0 75 fluid cooled aluminum dome tweeter 4 3KHz and 1 7KHz 12dB octave High pass 12dB octave band pass and 12dB octave low pass 53Hz 20KHz 3dB 86cB 2 83V at 1M 8 ohms nominal 10W ch minimum 150W ch maximum Professional grade spring posts 7 lbs each 10 1 4 H 8 1 8 W 11 3 8 H 9 1 4 W 3 1 4 Matte white paintable Thank you for purchasing NHT in wall loudspeakers Please take a few minutes to read through this Owner s Manual prior to installing your new speakers The information provided will help you to obtain maximum performance from your audio system If you have ques tions or need assistance at any time during the installation or operation of your new speakers please call your NHT Dealer or our Toll Free Customer Hotline at 1 800 NHT 9993 E Design NHT loudspeakers are designed to deliver refined musical sound from attractive and affordable packages Our efforts are guided by the study of human hearing and are optimized for real world use Every NHT speaker undergoes rigorous testing and quality control at the factory to ensure you years of listening pleasure NHT in wall loudspeakers are designed to deliver the sonic performance and value of
7. making sure to observe correct polarity see Connections 8 Put the baffle into the frame so the holes on the baffle line up with the holes in the center of the raised bosses on the frame fig 8 Push one of the 4 x 16mm screws through a hole on the baffle and into the hole on the frame and tighten it by hand so that the baffle and the frame stay together Insert the remaining screws then tighten all of them snugly making sure not to overtighten as this may compromise the fit of the baffle The use of power screwdrivers is not recommend ed Exercise caution not to damage the drivers when inserting the screws 9 Remove the protective cover from the tweeter midrange bridge 10 Attach the metal grille by inserting it into the grooves in the baffle d OD Mounting a B z4 e Tweeter Midrange Bridge E Painting The frame and grille are painted in a matte white finish that may be painted to match the wall The baffle must be removed before installing the paint shield Keep in mind that the grille contains hun dreds of tiny holes that are essential to the sound of the speaker Take care not to clog these holes with paint 1 Remove the baffle from the frame by removing the six screws and carefully separating the baffle from the frame 2 Paint the frame and the grille at the same time using the same paint Use the supplied paint shi
8. NHT s freestanding loudspeakers while offering the invisibility of in wall installation The custom designed drive units are mounted in a rigid baffle assembly designed to minimize the audible effects of unwanted vibrations and resonance The mounting assembly is designed to be intuitive and flexible making it ideal for new or existing construction With high performance sonics and a paintable face NHT in wall loudspeakers are the perfect solution for architectural audio and home theater installations Caution In wall loudspeakers should be installed by an experienced and licensed custom installation professional Be sure that the installer 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 E Placement NHT in wall loudspeakers are designed for in wall installation between standard 2 x 4 wood studs Installation in outdoor locations or in moisture prone interior environments such as indoor swimming pools or saunas is not recommended Spend some time considering speaker placement prior to installing the NHT in wall loudspeaker Once the speakers are installed they are permanent so their location should be selected carefully Mount the speakers in a location where they face the listening area with out obstruction from furniture and preferably at least three fee
9. amount of insulation to speakers in the same room to ensure consistent sound Use R 12 or R 19 fiberglass insulation and be sure to wear protective gloves to avoid contact with the fibers If the insulation is paper or foil faced position the paper or foil side away from the speaker E Installation Existing or New Construction retrofitting finished walls Warning Exercise caution when drilling into existing walls Do not drill through existing wires pipes conduits heating or air conditioning ducts If you feel resistance while drilling stop immediately 1 Using a studfinder or the knocking method locate the wall studs in the wall area where you wish to mount the speaker The speak er should be installed between adjacent studs no closer than two inches from either stud fig 6 2 Determine that there are no obstructions behind the desired cutout area This may be accomplished by drilling a hole in the center of the cutout area and using an L shaped piece of metal like a coat hang fig 6 er to feel around behind the wall If you discover an obstruction fill Cut the hole with patching compound and try another location Quel ey 3 If there are no obstructions found behind the wall use the supplied cutout template and a pencil to draw a 10 1 4 H x 8 1 8 W outline of the area to be cut out Use a level to ensure that the cutout is pre cisely positioned Begin by drilling the four corners with a
10. e or below the location where the television will be Packing List 1 pair of baffles 1 pair of frames 1 pair of metal grilles 2 cutout template paint shields iWB mounting bracket includes optional purchased seperatly Mounting bracket 1 2 Mounting wings 4 5 x 50mm flathead screws Tools Needed er ve 2 Philips screwdriver Pencil Frame iWB optional N of Ro Tape measure Utility knife or keyhole saw N S e ea w Level Wire strippers S J Safety goggles Protective gloves UEO J om 20 g Lea fo a Grille Mounting Bracket aoe Mounting Wing Tech Tips Pre Wiring for New Construction 1 For best results avoid running speaker wire near AC wire as it may induce a 60Hz hum 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 at least three feet away from the AC wiring If speaker wire and AC wiring must run parallel install the speaker wire within a steel conduit Note that low voltage wiring doorbell intercom telephone security etc is unlikely to induce hum and can typically be run parallel to speaker cable 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 cable
11. e that the speaker wire does not rest on sharp or pointed objects The NHT in wall loudspeaker is compatible with virtually all quality amplifiers Proper wiring of the speakers is essential to good sound Ata minimum 16AWG 2 conductor speaker wire is recommended for runs of 10 feet or less with heavier special purpose speaker cable used for longer runs For best results use equal length runs of wire for the left and right speakers When permanently installing 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 the U L standard is 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 and any applicable local building codes Prepare the wire by stripping 1 4 to 3 8 of insulation from the ends and twisting the exposed wire strands tightly The spring loaded binding posts on the back of the speaker will accept raw wire only Be sure to wire both the left and right speakers in phase That is the Positive red terminal on the amplifier output must be connected to the corresponding Positive red terminal on the speaker Likewise with the Negative black terminals All speaker wire have some sort of marking along one or both conductors to help you make the correct connections Incorrect speaker phase is indicated by weak bass and the lack of a well defined stereo image E Operation
12. eld fig 9 to protect the hole from overspray Fold the corners down and insert the paint shield into the grooves where the grille would attach Be careful not to punch through the round hole in the middle of the shield 3 When using spray paint apply two thin coats making sure to let the first coat dry completely before applying the second This will avoid runs When using a compressor and spray gun apply the paint using its finest setting Painting with a brush is not recommended but when necessary be sure to thin the paint so it does not cover the holes Paint Fold down N Shield outer ring Remove Baffle x IN Place Inside a Frame Readyto i paint XS in the grille If paint does cover any of the grille holes poke them out with a paper clip 4 Once painting is complete remove the paint shield from the bezel by carefully punching out the round hole in the middle and using this hole to pull the shield free 5 Reinstall the baffle Do not attempt to paint the black baffle surface which houses the drivers behind the grille Its black finish pre vents the speaker s black drive units from being visible once the grille is attached E Connections Before connecting speakers to your system it is important that you turn off the power to your amplifier receiver to avoid dam age to the equipment Before installing the speaker map out the wiring paths between the speakers and the amplifier Make sur
13. from date of original purchase the warranty period from an autho rized NHT dealer Now Hear This NHT warrants that if our product fails to function properly under normal use due to a man ufacturing defect when installed and operated according to the owner s manual instructions enclosed with the unit it will be repaired or replaced with a unit of comparable value at the option of NHT without charge to you for parts or actual repair work Parts supplied under this warranty may be new or rebuilt at the option of NHT What s Not Covered This warranty does not cover any product which is used in any trade or business or in an industrial or commercial applica tion This warranty does not cover the cabinet or any appearance item or any damage caused to the product resulting from alter ations modifications not authorized in writing by NHT accident misuse or abuse damage due to lightning or power surges or being subjected to power in excess of the speaker s published power rating This warranty does not cover the cost of parts which would otherwise be provided without charge under this warranty obtained from any source other than an authorized NHT service location This warranty does not cover defects or damage caused by the use of unauthorized parts or labor or from improper maintenance Altered defaced or removed serial numbers void this warranty Your Rights The liability of NHT will be limited to the purchase price of the product
14. t from side walls The speakers should be mounted on a flat wall surface to ensure a good seal between the speaker assembly and the wall For best sonic performance position the speakers so that the dis tance between the primary listening position and the wall is 1 5 times the distance between the two speakers fig 1 To get an idea how they will look in the room try taping the supplied cutout templates to the wall Keep in mind that room furnishings play an important role in absorbing and reflecting soundwaves Midrange and high frequencies in particular will be absorbed by soft furnishings such as sofas carpets and curtains A large number of these soft furnishings will tend to dull the sound somewhat while a live room with few fur nishings tends to brighten the sound lt D gt NHT in wall loudspeakers are not magnetically shielded do not install them in a ae s x f Pa ie location where they will be within 12 of a direct view television Unshielded Speaker gt lt magnets placed in close proximity to a television screen can cause picture dis RR l coloration and may damage the picture tube When installing three NHT in wall K F 45 xD loudspeakers for front channels in a home theater system you can position the L amp R speakers farther apart to create a wider soundstage When installing NHT in wall loudspeakers as center channel speakers they should be installed at least 12 directly abov
15. tarted tighten each of them snugly making sure not to overtighten as this may compromise the fit of the baffle The use of power screwdrivers is not recommended Exercise caution to not damage the drivers when inserting the screws 9 Remove the protective cover from the tweeter midrange bridge 10 Attach the metal grille by inserting it into the grooves in the baffle me ozs O Mountin Clamp Q Tweeter Midrange Bridge Le Tech Tips Optimizing Sonic Performance Bass response is smoothest when the speaker is mounted within a rigid wall that flexes very little For improved perfor mance add 2 x4 cross braces horizontally roughly one foot above and one foot below the speaker location Use wood glue and extra screws when attaching the drywall to the studs around the speaker Additionally once the speaker cutout has been made in the drywall add a bead of wood glue inside the wall where the drywall meets the studs and cross braces If possible use two layers of drywall for maximum rigidity For an easier option use NHT s Acoustic Foam Insert Kit The kit contains flame retardant dense foam blocks that stiff en the drywall and can be added after the drywall is up See your NHT dealer for details For more controlled bass response add insulation to the wall cavity around and behind the speaker to provide acoustic damping Be sure to add the same
16. 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 cable 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 cable through them will be easier E Installation New Construction unfinished walls 1 Begin by installing the iWB mounting bracket between adjacent studs NHT in wall loudspeakers should only be used in the vertical orientation fig 5 Attach the mounting wings to the bracket by inserting them into the locking plastic tabs in the side of the bracket fig 2 2 Select the desired location for the speaker using a level to ensure that it is precisely positioned The wings feature progressively elongated sections 1 1 2 2 2 3 3 with screw holes spaced in one inch increments Attach the wings to the studs with the 5 x 50mm flathead screws or staples For maximum stability use two screws for each wing Bend back the extra portion of the wing at one of the break lines fig 3 3 Complete the pre wiring before the drywall goes up see Tech Tips Pre Wiring for New Construction Leave an extra few feet of speaker wire and secure it close to the mounting bracket 4 During the drywall phase cut a hole 10 1 4 high by 8 1 8 wide around the bracket When installled
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