Meticulously designed and engineered for high-performance music, home theater and distributed audio installations, DI Series in-wall and in-ceiling loudspeakers deliver room-filling performance while disappearing into walls and ceilings.

Invisible Audio Performance

When Seeing Isn’t Believing

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.

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THE DI DISAPPEARING™ SERIES

DI 6.5LCR

Dual 6.5” In-Wall L/C/R Loudspeaker
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DI 5.5LCR

Dual 5.25” In-Wall L/C/R Loudspeaker
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DI 5.5BPS

5.25” Bipolar In-Wall / In-Ceiling Speaker
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DI 8R

More Sound Per Pound
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DI 6.5R

DI 6.5R 6.5” In-Wall / In-Ceiling Speaker
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DI 5.5R

Disappearing™ Series Round 5.25” In-Wall Loudspeaker
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DI 4.5R

Disappearing™ Series Round 4.5” In-Wall / In-Ceiling Speaker
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DI 3.5R

3.5” In-Wall / In-Ceiling Speaker
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Freestanding Speaker Transducers
in a disappearing in-wall design

Ultralight aluminum tweeters. Patented BDSS mid/bass drivers. Precision-engineered with the acclaimed technologies of our top floorstanding speakers, DI Series architectural speakers deliver dazzling audio performance.

Hidden Flange Architecture
for nearly invisible audio

Hidden flange architecture is fantastic for décor, because the nearly border-free design virtually disappears into walls and ceilings. In many instances, 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 get their practically invisible look.

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Bipolar Technology
for naturalistic surround sound

The DI 5.5BPS In-Wall/In-Ceiling Surround Speaker boasts Definitive Technology’s vaunted Bipolar technology, filling the room with a perfect combination of direct and reflected sound for stunning surround effects.

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“If you’re building a home theater system and a nearly invisible, zero-floor-space design is your goal–but you don’t want to sacrifice sound quality and aural impact–I highly recommend the DI Series from Definitive Technology...prepare to be wowed. I was!”

–Home Theater Review

Environmental EQ
for fine-tuned highs in any space

With all DI Series models (except Di 3.5R and Di 4.5R), you can 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.

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Single-Speaker Stereo Solution
for stereo music that fits anywhere

The DI Series boasts one model perfect for limited-space applications such as hallways, kitchens, bathrooms, and offices. The DI 6.5STR features a stereo setup within a single round ceiling speaker. Bristling with technologies such as dual voice coils powering a 6.5” mid/bass driver and an innovative dual-angle tweeter configuration, the DI 6.5STR produces broad stereo dispersion from just one speaker.

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In-Wall Subwoofer
for maximum impact

The IW Sub Reference and IW Sub 10/10A in-wall subwoofers perfectly complement DI Series in-wall/in-ceiling speakers, reproducing the lowest octaves of music, movies, and games — unleashing massive, thunderous bass that brings a deep sonic impact to any space.

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Simple, Stealthy Installations

Install Easily and Reliably

Whether new or existing construction, walls or ceilings, residential or commercial, DI Series speakers enable 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.

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Pre-construction Rough-in Brackets
for new construction installations 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.

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Paintable Magnetic Grilles
for the final custom touch

All DI Series 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.

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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.

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