Definitive Technology DT Custom Install Series DT6.5STR Round 6.5" Dual-Tweeter Stereo In-Ceiling Speaker, White

SKU: DEDT65STR MFR: UGDB
Earn VIP Reward Points

Key Features

  • Experience immersive audio with this Definitive Technology in-ceiling speaker.
  • Enjoy crisp highs & deep bass from this stereo speaker's dual-tweeter design.
  • Achieve optimal sound with 225W max power, perfect for home theater setups.
  • Customize your audio; set A/V receiver crossover at 60Hz for balanced sound.
  • Seamlessly blend audio with decor using the paintable magnetic grille design.
  • Install easily in any room; cutout template included for perfect in-wall fit.
See More Product Details
Special Order?Estimated to Ship: 08/13/2025
Free Shipping

See Options

Qty
1

Protect your gear with Adorama Protect.* Learn more

1 Year

$15.99

2 Year

$25.99

3 Year

$44.99

Available to U.S. customers only.

Need help? Ask our experts.

Overview
Compare
Specs
Protection
Q&A

Questions & Answers

Reviews about this item

Review Summary

Select a plan in the Add Protection section above and purchase with this product by clicking “Add to Cart”.

image-protection

TRUSTED PROTECTION PLANS, EXCEPTIONAL SERVICE.

Invest In Your Gear and Peace Of Mind!

Accidents happen. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failures, and more.

Repair or Replacement

Repair or Replacement

If we can’t fix it, we’ll replace it at no additional cost.

Accidental Damage

Accidental Damage

Protect your product from drops, spills, and more.

Peace of Mind

Peace of Mind

Enjoy your gear without fear. We have you covered!

Failure Protection

Failure Protection

When regular use of your product over time results in mechanical or electrical failure.

Zero Deductible

Zero Deductible

We will never charge you a deductible after the purchase of a plan.

Customer-Focused Support

Customer-Focused Support

Our claims process is simple & easy and our customer service team is happy to help.

Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for international or U.S. territories purchases. Plans on open box items do not cover pre-existing damage.
Adorama Protect plans are available for ABS clients. If you have any questions or require assistanse, please call 800-223-2500

Definitive Technology DT Custom Install Stereo Specifications

  • Color

    White

  • Driver Complement

    2x 0.75" (1.91cm) d (Round) Pivoting Dome Tweeter - Tweeter
    1x 6.5" (16.51cm) d (Round) - Mid/Woofer

  • Shape

    Round

  • Recommended Power (Min/Max)

    Stereo: 10/225w/Ch
    Surround: 10/200w/Ch

  • Total Frequency Response

    27 Hz - 30,000Hz

  • Impedance

    8 ohms

  • Max Sensitivity (1 watt @ 1 meter)

    89 dB

  • A/V Receiver Crossover Settings

    Small (60Hz)

  • Depth

    Total: 3.56" (9.04cm)
    Mounting Depth In-Wall: 3.06" (7.78cm)

  • Diameter

    7.25" (18.42cm)
    Grille: 8.31" (21.11cm)

  • UPC Code

    093207099229

About Definitive Technology DT Custom Install Stereo

Discover the pinnacle of in-ceiling audio design with the DT Custom Install Series DT6.5STR Round 6.5" Dual-Tweeter Stereo In-Ceiling Speaker. Engineered by the renowned Definitive Technology, this high-quality speaker is a testament to stylish, durable, and advanced audio solutions, perfect for the discerning audiophile seeking an innovative and discreet home audio experience.

Ultimate In-Ceiling Versatility:
The DT6.5STR offers unparalleled versatility, effortlessly transitioning from a single stereo speaker ideal for compact spaces such as bathrooms, to a surround sound speaker that envelops your home theater in rich, immersive fidelity. With a simple flip of a switch, this speaker adapts to your audio needs, providing full stereo or surround sound performance that rivals larger, more obtrusive systems.

Definitive Audio Performance:
At the heart of the DT6.5STR lies a powerful 6.5" composite mineral-filled polypropylene driver cone, delivering dynamic mids and robust bass. Paired with dual .75" pivoting dome tweeters, the speaker ensures authentic stereo sound from a single chassis. Each component within the DT Series is meticulously optimized for superior sound quality, ensuring a listening experience that captivates and a product that stands the test of time.

Single-Speaker Stereo Solution:
Designed for spaces where traditional speakers cannot fit, the DT6.5STR excels in hallways, kitchens, and offices. Its innovative design incorporates dual voice coils powering the mid/bass driver and a unique dual-angle tweeter configuration, resulting in expansive stereo dispersion from a singular in-ceiling unit.

Low-Diffraction Swivel Tweeter:
Featuring a low-diffraction swivel tweeter, the DT6.5STR minimizes interference with the midrange driver while enhancing dispersion and off-axis response. The swivel mechanism allows for precise audio aiming, delivering pinpoint direct sound or a diffuse surround sound experience.

High-Performance Audio Components:
The DT Series is rich with high-tech components, such as annealed aluminum tweeters and polypropylene mineral-filled mid/bass cones with anti-diffraction surfaces. These elements come together to reproduce audio with the legendary voicing synonymous with Definitive Technology.

Pure Aluminum Swivel Tweeter:
The ultralight and rigid aluminum dome tweeter of the DT6.5STR extends high frequencies beyond the audible range, ensuring optimal linearity within human hearing. The tweeter's swivel mechanism can be oriented for precise sound directionality or a more enveloping surround sound.

Polypropylene Mineral-filled Midrange/Woofer:
The combination of a polypropylene mineral-filled cone and butyl rubber surrounds results in a midrange/woofer that is lightweight yet stiff, allowing for quick, punchy bass and a smooth, detailed midrange.

High-Definition Crossover:
A high-definition crossover network with Mylar capacitors contributes to the DT6.5STR's smooth and accurate performance across its entire frequency range, ensuring a seamless audio experience.

Quick and Easy Installation:
Installers will appreciate the simplicity of installing the DT6.5STR, requiring only four common tools and a pencil. With its lightweight yet robust construction, integrated pivoting lock arms, paintable grilles, and magnetic grille fasteners, installation is swift and straightforward.

Pivoting Tweeters for Customized Sound:
Whether used as front speakers in a home theater setup or as part of a distributed audio system, the pivoting tweeters can be aimed toward the main listening area for enhanced imaging and detail. For rear/surround applications, the tweeters can be directed toward walls or ceilings for a more diffuse sound field.

Paintable Magnetic Grilles:
To achieve a customized look that blends seamlessly with your d©cor, the DT Series speaker grilles and frames are fully paintable. Once painted, powerful neodymium magnets secure the grilles to the speakers, providing a clean, tool-free finish.

Affordable Customization:
The DT Series represents years of research and engineering to create an affordable in-wall/in-ceiling speaker line that embodies the essence of Definitive Technology. Suitable for distributed audio, home theater, or commercial settings, the DT Series brings captivating music, movies, gaming, and background audio to your space with ease and elegance.

Definitive Technology DT Custom Install Stereo Features

  • Defintive Technology's exclusive composite mineral-filled polypropylene driver cones with rubber surround create a clear, natural sound
  • Acoustically optimized annealed aluminum domes reveals the subtle details in a recordings
  • Low diffraction disappearing grille with neodymium magnetic attachment (with a perforation size only .6mm) for fast, easy attachment
  • Round models are same cutout size as DI size equivalents

Key Features

  • Experience immersive audio with this Definitive Technology in-ceiling speaker.
  • Enjoy crisp highs & deep bass from this stereo speaker's dual-tweeter design.
  • Achieve optimal sound with 225W max power, perfect for home theater setups.
  • Customize your audio; set A/V receiver crossover at 60Hz for balanced sound.
  • Seamlessly blend audio with decor using the paintable magnetic grille design.
  • Install easily in any room; cutout template included for perfect in-wall fit.

What's in the box:

  • Definitive Technology DT Custom Install Series DT6.5STR Round 6.5" Dual-Tweeter Stereo In-Ceiling Speaker (White)
  • Paintable Magnetic Grille
  • Cutout Template
  • Definitive Technology 5 Year Limited Warranty