Figure 5

Point tweeter in desired direction by turning the tweeter assembly.

Figure 6a

Push gently in

direction of arrow

to set angle.

Figure 6b

Aiming the Tweeter

A tweeter 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 toward the nearest reflecting surface (an adjacent wall or ceiling) for a more diffuse sound field (if you so desire; for more direct sound, aim the tweeters at your listening position).

4

Di SERIES OWNER’S MANUAL

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.

Figure 7

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 ensure optimum sound quality.

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Definitive Technology 6.5S Aiming the Tweeter, Environmental EQ, Not included on Di 3.5R and Di 4.5R models, Installation
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6.5S, DI65R, 6.5R, DI8R, 8R specifications

Definitive Technology is a renowned name in the audio industry, and its series of loudspeakers, including the 5.5S, 4.5R, 5.5R, 6.5STR, and 3.5R models, exemplify the brand's commitment to superior sound quality and innovative design. Each speaker in this range brings distinct features and technologies that cater to audiophiles and casual listeners alike.

The Definitive Technology 5.5S is designed as a surround speaker, featuring a bipolar design that enhances sound dispersion. This characteristic allows for an immersive listening experience, ideal for home theater setups. It includes high-performance 5.25-inch mid/bass drivers and a 1-inch aluminum dome tweeter. The resulting audio quality is crisp and clear, with remarkable detail in highs and rich bass notes.

The 4.5R model serves as a compact bookshelf speaker, optimized for stereo applications. Its 4-inch midrange driver and 1-inch tweeter are housed in an elegantly designed cabinet that minimizes resonance. The precision-engineered speaker design ensures that users can enjoy detailed soundscapes, making it suitable for any room size. The 4.5R is perfect for those looking for high-fidelity sound in a smaller form factor.

Meanwhile, the 5.5R stands out as a tower speaker, featuring dual 5.25-inch bass drivers and a larger cabinet that allows for deeper bass response. The 5.5R is engineered with Definitive's proprietary BDSS technology, which combines various driver technologies to achieve an expansive soundstage and accurate imaging. This makes it a compelling choice for both music and movie enthusiasts, delivering robust low frequencies without sacrificing clarity.

For those seeking powerful sound and deep bass, the 6.5STR serves as a formidable option. This in-wall speaker features a 6.5-inch driver and a sophisticated design that enables it to blend seamlessly into any environment. Its balanced sound reproduction technology ensures that it remains versatile, catering to a range of audio preferences.

Finally, the 3.5R is another bookshelf offering, positioned as an entry point into Definitive's high-performance lineup. Its compact size is complemented by advanced driver technologies, delivering a surprisingly full sound for its dimensions. Ideal for smaller spaces, the 3.5R is perfect for those who don’t want to compromise on audio quality.

In summary, the Definitive Technology 5.5S, 4.5R, 5.5R, 6.5STR, and 3.5R speakers exemplify the brand’s dedication to delivering exceptional audio experiences through innovative design and technology, making them suitable for various listening environments and preferences.
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