Definitive Technology DI 3.5R Disappearing 3.5-inch Round In-Ceiling Speaker – Each


Optional Accessory

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Disappearing? In-Wall 3-1/2

  • 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”


Driver Complement

Quantity 1
Diameter 3/4″ (1.91cm)
Type Pivoting Pure Aluminum Dome
Mid / Woofer
Quantity 1
Diameter 3 1/2″ (8.89cm)
Type BDSS Midrange Driver
Tweeter/Mid Array
Type Direct Radiating 2 Way Coaxial


Audio Inputs
Speaker Level 1 Pair (Heavy Duty Spring Loaded
Maximum Sensitivity
1 watt @ 1 Meter 89 dB
Total Frequency Response
Overall 40 Hz – 30 kHz
Nominal Impedance
Compatible with 8 ohm
A/V Receiver Crossover Setting Small (120 Hz)
Power Handling 10 – 125 watts per channel


Cut Out Dimensions
Diameter 3 3/4″ (9.53cm)
Mounting Depth 3″ (7.62cm)
Internal Clearance Required for Mounting Dogs (add to each side of Cut Out) 7/8″ (2.22cm)
Grille Dimensions
Diameter 4 9/16″ (11.59cm)
Orientation In Wall or In Ceiling
Cabinet Type
Speaker Enclosure Infinite Baffle
Product Weight
Out of Box 1.9 lbs


Additional information

Weight 6 lbs


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