Definitive Technology DT 8R Custom Install 8″ Round In-Ceiling Speaker (single)

$419.00 inc GST

Every element of the DT8R is optimized for superior quality and sound.

Each part is developed from scratch for a listening experience that delivers and a product that endures. The DT8R is simply the best sounding in-ceiling speaker for multi-room and home theater applications all things considered. Great performance, invisibility and ease of installation are why it endures.

Sold as a Single Speaker


View Owners Manual >>


Premium Materials for Optimized Audio
DT Series speakers use exclusive composite-filled polypropylene driver cones with rubber surrounds for superior transparency and longevity.


Annealed Aluminum
Great transients and smooth response are the direct result of the perfect rigidity and lightness of an acoustically optimized annealed aluminum tweeter dome.


High Definition Crossover
Crossover is crucial to high-end audio quality. The high definition crossover network in DT Series speakers is how each one delivers the purest high frequencies.


Designed for Superior Sound
Speakers that visually dominate the room distract from the sound. DT Series speakers have whisker-thin micro-perf grilles with slim bezels that can be custom painted to blend in.


A well designed built-in speaker should excite your senses and immerse you in your favorite music or movie. That’s a sure thing from Definitive Technology, renowned for building superior performing, high value bookshelf and floor standing speakers. The DT range uses the same technologies and engineering talent with every part developed from scratch to assure your enduring satisfaction – because good enough isn’t acceptable. The DT8R is simply the most reliable, easy to install, best sounding 8″ ceiling speaker anywhere near it’s price. They are ideal for multi-room applications or mixed and matched with DI or DT Series Inwalls for high performance Disappearing home theater.


Installation and Setup is a Snap
• Rotating cam installation method – easy, speedy and reliable.
• Swivel tweeter offers improved dispersion and off-axis response for the best sound regardless of location.
• Perfect-fit template included


Premium Materials – Every choice optimized for its intended use
• Our exclusive 8″ composite mineral filled polypropylene driver cones with rubber surround offer superior transparency and longevity.
• Acoustically optimized annealed aluminum 1″ tweeter dome provides the optimum balance of rigidity and lightness for great transients and smooth response.
• High definition crossover network with mylar capacitors for the purest high frequencies.
• Gold plated heavy duty push terminals accept up to 12AWG cables


The Disappearing Grille Really Disappears
• 0.6mm micro perf grilles are wafer thin with slim bezels
• Instantly locks in place with powerful neodymium magnets
• Paintable for the ultimate in invisibility


Accessories Extend The Utility
Optional square grilles available for purchase to ensure a match with any ceiling lighting style


Mix and Match with the DI Series
Same cutout size and grille design as DI Series equivalents allow a uniform look for whole house and home theater installations.




  • Total Pieces


  • Drivers Warranty
    5 years


  • Carton 1
    11.1″ (28.19 cm) h x 11.1″ (28.19 cm) w x 6.1″ (15.49 cm) d – 4.7 lbs (2.13 kg)

  • Qty Included
  • Availability
  • Driver Complement
    • (1)  1″ (2.54 cm) d (Round) Pivoting Dome Tweeter – Tweeter
    • (1)  8″ (20.32 cm) d (Round) – Mid/Woofer
  • Depth
    3.81″ (9.68 cm)
  • Grille Dimensions
    9.75″ (24.77 cm) diameter


  • Shape
  • Dimensions
    8.75″ (22.23 cm) diameter


  • Total Frequency Response
    27 Hz → 30 Hz
  • Nominal Impedance
    8 ohms
  • Max Sensitivity (1 watt @ 1 meter)
    89 dB


  • A/V Receiver Crossover Settings
    Small (60 Hz)

Additional information

Weight 1 kg
Dimensions 25 × 35 × 25 cm

Definitive Technology