Definitive Technology DI 5.5R 5.25″ In-Wall / In-Ceiling Speaker – White

Brand: Definitive Technology
Model Number: DI 5.5R
UPC: 093207063756
Model Number: DI 5.5R
UPC: 093207063756
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Availability: In Stock

Definitive Technology DI 5.5R 5.25″ In-Wall / In-Ceiling Speaker – White

-Frequency response 28-30,000 Hz (±3dB)
-1″ pivoting Pure Aluminum dome tweeter
-5-1/4″ woofer
-Disappearing™ In-wall speaker design, including hidden flange and low-profile grille

Frequently Bought Together

DI 5.5R+DNSUB10+Definitive Technology STUDIO3DMINI+PRO Center 2000
Price for all:   $3,256.00

Product Description

Features & Specifications



Definitive Technology DI 5.5R 5.25″ In-Wall / In-Ceiling Speaker – White

Clearly Covers Every Angle

With its small diameter, hidden flange design, and low-profile grille, the DI 5.5R is nearly invisible in your ceilings or walls. This pint-size dynamo goes boldly where other speakers can’t, while producing a full, accurate audio experience belying its size.

Room-filling Fidelity

5.25” BDSS™ Woofer.

Clear, Clean and Detailed

Pure Aluminum Dome Tweeter.

Tailored to Your Space

Environmental EQ & Pivotable Tweeter on the DI 5.5R.

Our Best Freestanding Speaker Technologies: Invisible Audio, Astonishing Performance

The culmination of decades of engineering, DI Series Loudspeakers deliver sensational sound quality while virtually disappearing into walls and ceilings with our hidden flange design. Treat yourself to dynamic bass, smooth midrange, and sparkling treble with little impact on your décor.

Environmental EQ fine-tunes the Highs for Any Space

Adjust the Environmental EQ switch to customize tweeter output for your listening environment. Engage the [+] setting to boost treble in sound-absorbing rooms, or the [–] setting to reduce treble in lively rooms. Leave in the Center position for rooms with average reflectivity.

Pivoting Tweeter for Controlled Directivity

The ultralight, rigid construction of DI Series aluminum dome tweeters enables them to play significantly higher frequencies than we can hear, enabling optimum linearity within the range of human hearing. The DI 5.5R features a pivotable tweeter for clean, sparkling, distortion-free highs, with dispersion customizable to your space.

Exclusive BDSS™ Technology Midrange/Bass Woofer

For more bass in less space while keeping midrange detailed and responsive, the DI 5.5R’s 5.25” mid/bass woofer leverages our exclusive Balanced Double Surround System (BDSS™) driver technology. The double butyl rubber surrounds produce a much greater cone excursion than other comparably sized drivers. And the DI 5.5R’s rigid PolyStone™ basket provides a sturdy launching pad for the powerful excursion.

With BDSS drivers, you’ll enjoy Superior Midrange/Bass dynamics and Detail in Packages sized for Stealth.

Acoustic Wizardry for the details that make the difference. The DI 5.5R features a sophisticated adjustable crossover network with custom, high-precision components for superior sonic purity.

Surrounding the BDSS driver is a Specially-Contoured AeroRing™ that precisely Distributes Natural, Well-Balanced Sound by Minimizing Diffraction.

The Axially-Aligned configuration of the tweeter with the woofer provides broader sound dispersion and more natural balance.

Disappearing Design Installs Easily and Reliably

Whether new or existing construction, walls or ceilings, residential or commercial, DI Series speakers offer simple, stealthy installations. Our engineers have extensive custom installation experience, and have felt your pain when working with hastily-engineered products. From pivoting lock arms to paintable grilles and frames to sure-grip magnetic grille fasteners, DI Series speakers are installer-friendly to the extreme.

All the Stealth None of the Complexity

Hidden flange architecture is fantastic for décor, because the nearly border-free design virtually disappears into walls and ceilings. What isn’t fantastic is the typical installation complexity. However, DI Series hidden flange designs are as easy to install as traditional flanged flush-mount speakers, and don’t require custom Sheetrock or spackle skills to install the practically invisible look.

Paintable Magnetic Grille for the Final Custom Touch

The DI 5.5R s speaker grilles and grille frames are paintable, with easy step-by-step instructions. Once you have your perfect look, powerful neodymium magnets attach the grilles to the speakers for a secure, tool-free finish.

New Construction Brackets For Installation made Easy

For new construction projects, streamline your DI Series speaker installations with the optional Pre-Construction Rough-in Brackets. Easily attach the bracket to studs or joists before the drywall goes up, using your choice of nails, drywall screws, or construction staples (not included). Adjustable arms allow for unusual stud or joist locations.

A Disappearing Act for Every Installation

Whatever the setting—residential or commercial, music room or home theater—DI Series has designed a disappearing act ready to entertain you. From round or square ceiling speakers, to in-wall speakers, to Bipolar surround speakers, to in-wall subwoofers, DI Series is ready to rock a venue of any size—invisibly. Mix and match as you please, confident that you’ll always enjoy Definitive Technology’s legendary speaker voicing.

Brand Definitive Technology   Model Definitive Technology DI 5.5R
Product: Definitive Technology DI 5.5R 5.25" In-Wall / In-Ceiling Speaker - White
Tweeter Size


Speaker Sensitivity

86 – 90 db


8 Ω

Speaker Size



Quantity in Package: Single
Tweeter: Hard-Dome
Aimable Tweeter: No
Woofer Composition: Polymer
Woofer Surround: Rubber
Moisture-resistant: No
Connector Type: Spring clip
Bi-Amp Inputs : No
Built-in Back-box: No


Speaker Shape: Round
Woofer Size: 5.25
Cutout Width: 6.3125
Cutout Height: 6.3125
Power Range (Watts): 10-175
Frequency Response: 28-30kHz

Estimated Shipping

When you add an item to your cart the Estimated Shipping* cost will be shown.  This estimated shipping* cost is accurate to most major city locations across Canada.  If the shipping cost is higher than the estimated shipping* then GibbysESM will contact you for approval before we process your order.

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Definitive Technology Canada 1 year Limited Manufacturers Warranty


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