In-wall speaker

  • NHT iW4

    Front with grille off

  • NHT iW4


  • NHT iW4

    Grill on

  • NHT iW4

  • NHT iW4

    Vertical with grille off

Item# 228IW4
This item is no longer available to purchase.
Contact us for other options
Call   Email   Chat

Our take on the NHT iW4

by Marshall Chase

25 years of audio know-how in every architectural series speaker

NHT is renowned for their excellent-sounding speakers. Even their name invites you to "Now Hear This". The iW4 packs a top-notch three-way speaker system into a discreet package to weave a tapestry of sound filled with rich detail. You get a 3/4" tweeter, a 2" midrange, along with dual 5-1/4" long-throw woofers. This combination puts you right in the sweetspot of dynamics and depth, whether you're listening to choice music selections or enjoying your favorite movie sound tracks.

Outside-the-box thinking

The iW4 drivers are mounted in a low-resonance wooden frame baffle. It's like having an in-wall bookshelf speaker. Moisture resistant materials and tight gasket covers let you install these speakers in any room in the house, including kitchen and bath, with confidence. The spring-loaded mounting cams help ensure that the iW3s will install firmly without coming loose or cracking the surrounding drywall over time, so you can expect years of fine performance. Just prepare the opening in your wall and run UL-rated wiring from your receiver and you can secure this flush-mount speaker with a few turns of a screwdriver. And you can paint the white matte grilles to match any dècor.

An iW4B pre-construction bracket is included and recommended for installing the iW4 in a home with new construction.

Got wire?

Most speakers don't include any. Learn more about in-wall wiring at the Crutchfield Learning Center.
Shop our selection of in-wall speaker wire.


  • 3/4" dome tweeter
  • 2" dome midrange
  • two 5-1/4" long-throw woofers
  • wooden speaker baffle included for low distortion
  • handles up to 150 watts
  • moisture-resistant materials allow safe use in bathrooms, kitchens, and saunas
  • not recommended for outdoor use
  • frequency response 50-20,000 Hz (±3dB)
  • sensitivity 86 dB
  • 8-ohm impedance
  • paintable aluminum speaker grilles
  • cutout dimensions: 9-1/8" x 13-11/16"
  • mounting depth: 3-1/8"
  • warranty: 5 years
  • Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

Features and Specs
Enclosure Type
Video Shielded
Midrange Size
Woofer Size
Woofer Composition
Woofer Surround
Power Range (Watts)
86 dB
Impedance (Ohms)
Frequency Response
Connector Type
Spring posts
Bi-Amp Inputs
Parts Warranty
5 Years
Labor Warranty
5 Years
Product Research
What's in the box?

Download owner's manual

  • In-wall speaker
  • Bezel
  • Grille
  • Mounting bracket
  • 2 Mounting wings
  • Twelve 4mm x 20mm screws
  • Eight 4mm x 50mm screws
  • Dum-dum
  • Grille removal-tool
  • Cutout template/paint shield
  • Owner's Manual
  • Product Registration Card

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.



Overview: The NHT iW4 in-wall loudspeaker is designed to deliver refined, musical, bookshelf speaker-like sound from and attractive, unobtrusive in-wall speaker. The iW4 in-wall loudspeaker offers extreme detail, excellent bass, wide dynamics, and high output. The NHT iW4 is useful in almost any distributed sound application, from home music, home theater, office, or commercial installations. It is suitable for the highest performance home theaters, high-end stereo systems, dens, dining rooms, master bedrooms, where high-quality sound is desired.

3-Way Design: The NHT iW4 uses two 5.25" long-throw polypropylene woofers, a 2" aluminum dome midrange, and a .75" aluminum dome tweeter. The midrange has its own internal chamber reducing comb filtering and improving detail. The advantage of a dual-woofer 3-way design is low distortion and wide dispersion, changing the sweet "spot" to a sweet "room" for listening

Acoustical Waveguide: The iW4's tweeter & midrange utilize an acoustical waveguide to deliver, more even high frequency response, no matter what part of the room you're in.

Crossover Network: The in-wall loudspeaker features a 3-way crossover network.

  • low pass & high pass at 750Hz (18dB/oct)
  • high pass & low pass at 5kHz (18dB/oct)

Non-Resonance Baffle: The NHT iW4's custom-designed drive units are mounted in a rigid baffle/bezel assembly designed to minimize the audible effects of unwanted vibrations and resonance. The baffle is 18mm MDF, the same material used in high quality box speakers. It is separated from the bezel by absorptive materials designed to prevent the coloration of critical midrange frequencies caused by wall vibration.

Spring Post Terminals: The in-wall speaker features gold-plated, spring-post terminals which will maintain contact with the speaker wire over the life of the installation.

Note: 16-AWG, 2-conductor in-wall speaker wire is recommended for runs of 10 feet or less, with heavier gauge cable used for longer runs.


Flexible Mounting System: The mounting assembly is designed to be intuitive and flexible, making it ideal for new or existing construction. The iW4 in-wall speaker's included mounting bracket allows for retrofit and pre-construction installation. Mounting hardware (screws, wings) is supplied.

Note: The NHT iW4B pre-construction in-wall bracket (228IWB4) is included with the NHT IW4 in-wall speaker, or sold separately if intended to be used to frame out the in-wall speaker location prior to sheetrock application.

Horizontal/Vertical Mounting: The iW4 in-wall speaker can be mounted in the wall either horizontally or vertically.

Cut-Out Template: A convenient template for the in-wall speaker's cutout is included to make installation location and retrofit cutting easier.

Paintable: The iW4 is painted with a neutral white primer and may be painted to match your wall decor with typical latex paints. When painting, the grille and speaker frame is painted separately. A convenient paint shield is included to protect the drive units in the speaker frame.

Note: Do not attempt to paint the black baffle surface (which houses the drivers). Its black finish prevents the speaker's black drivers from being visible once the grille is attached.

Be the first to review this product
Great Gear Giveaway rewards card

Submit a review and you will be entered to win a $150 gift card

Crutchfield Great Gear Giveaway Official Sweepstakes Rules

Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
1500 characters left
Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left

Add accessories for the NHT iW4

Set the volume level in your remote location without going back and forth from room to room. See all categories & accessories

Niles SVC100K Sliding stereo volume control with impedance magnification
Your Price: $129.99
Add to Cart
Niles VCS100K Stereo volume control with impedance magnification
2 people say
Your Price: $99.99
Add to Cart
Russound ALTx-2 Stereo volume control with impedance matching
Your Price: $39.99
Add to Cart
Russound ALTx-2D Stereo volume control with impedance matching and Decora®-style wall plate
Your Price: $39.99
Add to Cart
Russound ALTX-WIRI-2D Electronic volume control with IR sensor and impedance magnification
Your Price: $159.00
Add to Cart
AudioQuest FLX-14/2 14-Gauge 2-Conductor In-Wall Speaker Cable UL-approved for in-wall use; direct-burial rated (125 feet)
48 people say
Your Price: $129.99
Add to Cart
AudioQuest FLX-14/4 14-Gauge 4-Conductor In-Wall Speaker Cable UL-approved for in-wall use; direct-burial rated (125 feet)
2 people say
Your Price: $219.99
Add to Cart
AudioQuest FLX-16/2 16-Gauge 2-Conductor In-Wall Speaker Cable UL-approved for in-wall use; direct-burial rated (50 feet)
23 people say
Your Price: $39.99
Add to Cart
AudioQuest FLX-16/4 16-Gauge 4-Conductor In-Wall Speaker Cable UL-approved for in-wall use; direct-burial rated (250 feet)
6 people say
Your Price: $319.99
Add to Cart
Russound Flexbox For in-wall speakers
Your Price: $199.99
Add to Cart
Niles SS-4 4-pair speaker selector
19 people say
Your Price: $129.99
Add to Cart
Niles SS-6 6-pair speaker selector
7 people say
Your Price: $174.99
Add to Cart
Russound SS-4.2 4-pair speaker selector
5 people say
Your Price: $119.00
Add to Cart
Russound SS-6.2 6-pair speaker selector
1 person says
Your Price: $159.00
Add to Cart
Niles SSVC-2 2-pair speaker selector with volume control
4 people say
Your Price: $249.99
Add to Cart
Russound SDB-6.1 High-power 6-pair speaker selector with volume control
Your Price: $499.99
Add to Cart
Niles VCS HUB8 8-speaker pair connecting block
6 people say
Your Price: $79.99
Add to Cart

Why choose SquareTrade?

The #1-Rated Protection Plan

Thousands of people have reviewed SquareTrade Protection Plans — and made us #1.

5-Day Service Guarantee & Free Shipping

We'll repair or replace your item in five business days or less after we've received it, or your plan is free. And, as always, we pay for all shipping.

Protection from Normal, Everyday Use

Repairing your average mechanical or electrical failure can cost as much as buying a new device. With SquareTrade, you're covered — including parts and labor.

For a more in-depth review and enhanced detailed information on the NHT iW4, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_228IW4/NHT-iW4.html ).

Get live, personalized service from an expert

Crutchfield Advisor: Hi there.

Crutchfield Advisor: We're happy to answer questions or provide additional info about this item.

Advisors also available at 1-888-600-3963