Di SERIES
OWNER’S MANUAL

Aiming the Tweeter

Atweeter aimed toward your listening position improves imaging and
detail. To aim the tweeter, first install the speaker in the desired location.
Rotate the tweeter so that the arrow on the tweeter faceplate is pointing
in the direction you wish to aim the tweeter [Figure 5]then gently push
the tweeter in that direction [Figure 6]. When using Di Series In-Wall
Loudspeakers as front/main home theater speakers or as stereo speakers
in a distributed audio system aim the tweeter toward the main listening
position. For rear/surround speakers installed in walls or ceilings, aim
the tweeter towardthe nearest reflecting surface (an adjacent wall or
ceiling) for a morediffuse sound field (if you so desire; for moredirect
sound, aim the tweeters at your listening position).

Environmental EQ

(not included on Di 3.5R and Di 4.5R models)

If your listening room is very reflective, with smooth sheetrock walls,
hardwood floors, and non-cushioned furniture, the sound will be overly
“bright” and unnatural. Engaging the Environmental EQ feature
[Figure 7](by selecting the “–” setting) compensates for the effect of
overly loud treble. If your room is has a lot of absorbing surfaces such as
over-stuffed furniture, heavy drapes and rugs such that the speakers
sound “dull,” engage the “+” setting to boost treble response. Leave the
switch in the center position in rooms with a balance of reflecting and
absorbing surfaces (most rooms fall into this category). Note:the Di 6.5STR
has a two position switch; the minus symbol “-” represents normal treble
output and the plus symbol “+” represents treble boost.

Installation

Installation Cautions

Installation of Disappearing Series Loudspeakers requires skills in
using tools such as a drill, screwdriver, saws and power tools. Installation
also entails running wires through walls. You should have a thorough
understanding of local building and fire codes and a familiarity with
the area behind the wall or ceiling into which you plan to install
your speakers.
When cutting holes in and running wires through walls/ceilings you run
the risk of cutting electrical wires or water pipes thereby causing safety
hazards and property damage. If you are in any doubt that you possess
the necessary skills or tools, contact your Definitive Technology dealer,
general contractor or a professional installer.

Required Tools

• Pencil for marking the location of installation.
•Bubble level (for Di 5.5S and Di 6.5S models only)
• Keyhole saw, utility knife or material- appropriate incising
implement for cutting drywall or other wall material.
• Phillips head screwdriver.
•Power drill with appropriate bit (optional, for starting wall cut).

Installation Procedure

• You must first install speaker wires that meet appropriate building and
fire codes before installing the speakers. Use at least 18 gauge wire or
heavier to ensureoptimum sound quality.
4
Figure 7
Figure 5
Point tweeter in desired
direction by turning the
tweeter assembly.
Figure6a
Push gently in
direction of arrow
to set angle.
Figure 6b