Definitive Technology Disappearing Series DI 3.5R Round 3.5" 2-Way In-Ceiling/In-Wall Speaker, White

SKU: DEDI35R MFR: UEQA
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Key Features

  • Enjoy exceptional sound quality with this discreet in-wall speaker, perfect for any room.
  • This in-ceiling speaker delivers immersive audio without compromising your home's aesthetics.
  • Experience powerful bass and clear highs from this compact 3.5" home theater speaker.
  • Easy to install, this durable speaker provides years of reliable, high-fidelity sound.
  • Customize your audio setup with paintable grilles to seamlessly blend with your decor.
  • Get optimal audio performance with Definitive Technology's disappearing series speaker.
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Special Order?Estimated to Ship: 08/16/2025
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Review Summary

2020-08-17T20:00:00

Rated 4 out of 5

Ceiling mounted for Atmos

I held off for a while on an Atmos setup. I finally gave in and chose the DI 8R (2 pair) after reading recommendations on a forum. Installation is very easy. Sound quality is very good for surround (Atmos) setup. Power handling is great (separate power amp each pair). They also do an excellent job using DTS-X and Auro 3D modes blending very well with my speakers; ST-L, Mythos Ten, Mythos Gem XL (F Height, Side and Rear).

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Definitive Technology Disappearing DI Specifications

  • Color

    White

  • Driver Complement

    1x 0.75" (1.91cm) d (Round) Pivoting Dome Tweeter - Tweeter
    1x 3.5" (8.89cm) d (Round) BDSS Bass/Mid - Mid/Woofer

  • Shape

    Round

  • Clearance Required

    For Mounting Dogs: 0.88" (2.24cm) (add to each side of cutout)

  • Speaker Inputs

    1x Pair of Heavy Duty, Spring Loaded - na

  • Total Frequency Response

    40Hz - 30,000Hz

  • Nominal Impedance

    8 ohms

  • Max Sensitivity (1 watt @ 1 meter)

    89 dB

  • A/V Receiver Crossover Settings

    Small (60Hz)

  • Depth

    3" (7.62cm)

  • Diameter

    3.75" (9.53cm)
    Grille: 4.56" (11.58cm)

  • Weight

    30.4 oz (861.82g)

  • UPC Code

    093207063732

About Definitive Technology Disappearing DI

It's time to elevate your audio experience with the Disappearing Series DI 3.5R Round 3.5" 2-Way In-Ceiling/In-Wall Speaker. This sleek and modern speaker, brought to you by the renowned Definitive Technology, is meticulously designed to blend seamlessly into your walls or ceilings, providing a stylish and unobtrusive solution for high-quality sound.

With a visible diameter of just 4.56", this durable in-wall/in-ceiling speaker is not only easy to install but also virtually disappears into your space. Despite its compact size, the DI 3.5R delivers thrilling, room-filling audio performance that immerses you in sound without intruding on your living space.

The DI 3.5R features our best freestanding speaker technologies, including a pivoting aluminum dome tweeter for clear, clean, and detailed sound. The ultralight, rigid construction of the tweeter allows it to play significantly higher frequencies than we can hear, ensuring optimum linearity within the range of human hearing. This speaker also features a pivotable tweeter for customizable dispersion, delivering clean, sparkling, distortion-free highs.

For superior midrange and bass dynamics, the DI 3.5R is equipped with an exclusive BDSS midrange/bass woofer. This 3.5" woofer leverages our unique Balanced Double Surround System (BDSS) driver technology, producing a much greater cone excursion than other comparably sized drivers. The rigid PolyStone basket provides a sturdy base for the powerful excursion, ensuring detailed and responsive sound.

The DI 3.5R also features a sophisticated adjustable crossover network with custom, high-precision components for superior sonic purity. The specially-contoured AeroRing surrounding the BDSS driver minimizes diffraction, distributing natural, well-balanced sound. The Axially-Aligned configuration of the tweeter with the woofer provides broader sound dispersion and more natural balance.

Installation is a breeze, whether in new or existing construction, walls or ceilings, residential or commercial settings. The DI Series speakers offer simple, stealthy installations with pivoting lock arms, paintable grilles and frames, and sure-grip magnetic grille fasteners. The hidden flange architecture virtually disappears into walls and ceilings, and the paintable magnetic grille adds the final custom touch.

Whether you're setting up a music room or home theater, the DI Series is ready to deliver an invisible audio experience that will leave you astounded. Mix and match as you please, confident that you'll always enjoy Definitive Technology's legendary speaker voicing. Experience the magic of disappearing sound with the DI 3.5R Round 3.5" 2-Way In-Ceiling/In-Wall Speaker.

Definitive Technology Disappearing DI Features

  • Simple conventional installation - no spackle work required
  • Latest generation BDSS drivers
  • Pivoting Pure Aluminum dome tweeters
  • Axially Aligned design ensures broad, balanced coverage area
  • Sure-grip magnetic grille fasteners
  • Adjustable high-definition crossover
  • Optional fire-rated enclosures
  • Cast PolyStone baskets for rigidity without "ringing"

Key Features

  • Enjoy exceptional sound quality with this discreet in-wall speaker, perfect for any room.
  • This in-ceiling speaker delivers immersive audio without compromising your home's aesthetics.
  • Experience powerful bass and clear highs from this compact 3.5" home theater speaker.
  • Easy to install, this durable speaker provides years of reliable, high-fidelity sound.
  • Customize your audio setup with paintable grilles to seamlessly blend with your decor.
  • Get optimal audio performance with Definitive Technology's disappearing series speaker.

What's in the box:

  • Definitive Technology Disappearing Series DI 3.5R Round 3.5" 2-Way In-Ceiling/In-Wall Speaker (White)
  • Wall Mounting Template
  • Paintable Magnetic Grille
  • Definitive Technology 5 Year Limited Warranty