Definitive Technology DI 3.5R
You want great sound everywhere in your home, but you may not always have room for or want the visual intrusion of free-standing speakers. Built-in flushmount speakers seem to be the answer but in practice they don't exactly disappear in the room, in fact many "in-wall" speakers call attention to themselves and create friction between your decorator and your audiophile sensibilities. Worse yet, most built-in speakers fall short on the performance end as well. Would Definitive allow you to suffer with bad sound? Oh no, no, no.
Definitive’s Disappearing™ In-Wall series speakers feature near-invisibility thanks to their small diameters, hidden flange design, and low profile micro-perf grilles. They are as easy to install as traditional flanged flush-mount speakers, and don’t require custom sheetrock/spackle skills to install yet they are practically invisible. The DI 3.5R is a mere 4-9/16" (11.6 cm) in diameter, about the same size as the mini recessed lighting fixtures that are all the rage in lighting design today.
Buy with confidence from an authorized dealer who has been in the business for more than a decade - we make purchasing the best in audio entertainment easy and we offer price matching on most items!
Features
- Flangeless design & micro-perf grille minimize visibility
- Simple to install — no spackle work required
- 4-9/16" (11.6 cm)diameter matches mini recessed lighting fixtures
- Latest generation BDSS drivers for audiophile-grade sound quality
- Pivoting Pure Aluminum dome tweeters
- Axially Aligned design ensures broad, balanced coverage area
- GaussGrip™ magnetic grille fasteners
- Adjustable high-definition crossover
- Optional fire-rated enclosures
- Cast PolyStone™ baskets for rigidity without “ringing”
Specifications
- Outer flange (grille) diameter | Metric :4-9/16" (11.6 cm)
- Cut Out Diameter | Metric :3-3/4" | 9.55 cm
- Depth from Flange | Metric :3" | 7.55 cm
- Mounting Depth In-Wall :2-1/2" (6.3 cm)
- Driver Complement :3/4" (20mm) pivoting Aluminum dome tweeter axially aligned with a 3-1/2" (8.9 cm) bass/midrange driver
- Frequency Response :40 Hz – 30 kHz
- Impedance :4 – 8 Ohms
- Sensitivity :89dB
- Recommended Associated Amplifier Power :10 - 125 WPC
- Inputs :One pair of gold plated heavy-duty spring-loaded terminals
- Available Finishes :Paintable White
- Warranty :5 Years
- Weight | Metric :1.9 lb. | 0.85 kg
- Packaging :One to a carton
About Definitive Technology
Definitive Technology has been committed to building superior sounding home audio and home theater loudspeakers since 1990, when the company was founded by Sandy Gross, Don Givogue and Ed Blais—lifelong audiophiles and experts in speaker design, acoustics and marketing. Definitive Technology loudspeakers are among the most positively reviewed and most often honored high performance loudspeakers on the market as well as being the best-selling premium home loudspeakers in the US.
Since its inception, Definitive has won an astounding number of awards and over-the-top enthusiastic reviews from Consumer Electronics industry associations as well as leading audio/video print magazines and websites. Frankly there are too many to list them all here but the photo on this page gets the point across.
Most recently a speaker system consisting of Definitive Technology Mythos STS SuperTowers, Mythos Nine center and Mythos Gem surrounds was awarded Sound & Vision magazine’s “Audio Product of the Year;” not merely “Speaker of the Year” but “Audio Product of the Year.” The system also won SoundStage!.com’s 2008 Reviewer’s Choice Award for Aesthetics and Sound. Home Theater magazine called the STS system “Crisp, Lush, Focused” and tagged it with a coveted Top Pick award. The STS also took home two Innovations Design and Engineering awards at CES 2009, one for High Performance Audio and the other for Home Theater Speakers. One industry award is an honor, five is a sweep.
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Manuals and Brochures
Manual Information Examples

..., contact your
Definitive Technology dealer, general contractor or a professional
installer.
Figure 6b
Aiming the
Tweeter
A
tweeter... In-
Wall Loudspeakers as front/main
home theater speakers or as stereo
speakers in a
distributed audio system aim the...

...to
install these
speakers, consult a professional
installer, your authorized
Definitive Technology dealer, or a
building contractor....
Service
Service work on your
Definitive loudspeakers will normally be performed by your local
Definitive Technology ...

... You
Thank you for choosing the
Definitive Technology Disappearing In-
Wall loud
speaker. The
Di Series products offer extraordinary...to your
Definitive dealer or the delivery company that delivered your
loudspeaker. Please unpack your
system carefully....

... Depth *
Mounting Depth In-
Wall **
Woofer Tweeter Product
Weight Frequency Response
Sensitivity Impedance 4-9/16".../EEC.
8
EQAT020209
For more information on
Definitive Technology Loudspeakers and
accessories, visit www.definitivetech.com, or email ...

...leaking" into adjacent rooms.
Figure 3
Placement Options
Definitive Technology Di Series
Loudspeakers give you nearly endless ... Fill a room with sound by
installing in-
wall speakers in nearly any
wall or
ceiling location although it is
best to keep ...
Definitive Technology
• Make sure the material into which you plan to
mount the
speakers (plaster, drywall,...other black (-). Make certain that you connect the
wire from the red terminal (+) of your
amplifier or receiver to the red terminal (+) on your...
Definitive Technology
Di Series
Di 3.5R
Di 4.5R
Di 5.5R
Di 6.5R
Di 6.5STR
Di 8R
Di 5.5S
Di 6.5S
2
Definitive Technology
• Place the
speaker carefully into the cutout. If you have a level,
use ... the
wall/
ceiling. Do not over-tighten the lock arm screws. If you are
using a
powered screwdriver or drill
set the torque to a value of 7 in. -
lb. (8dN - ...
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