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Definitive Technology DI4.5R Round 4.5” in-wall / in-ceiling speaker (White)


Definitive Technology DI4.5R Disappearing™ Series Round 4.5” In-Wall / In-Ceiling Loudspeaker, Each

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Powerful performance is practically invisible with the Definitive Technology Disappearing™ Series. Combining a 5.3” visible diameter and 4.5” mid/woofer that effortlessly outperforms larger traditional speakers, the DI 4.5R easily installs into your ceiling to envelop any space in dynamic, high definition audio. With this over-achieving, flush mount loudspeaker, you’ll hear fantastic sound in every corner of the room, but you won’t see a thing.



  • Flush mount design and micro-perf grilles allow 5.38” of visibility to match mini recessed lighting fixtures
  • Deeper sound quality with precision BDSS™ drivers and a pivoting pure aluminium dome tweeter
  • Rigid PolyStone™ baskets eliminate unwanted vibrations to prevent ringing and minimize distortion
  • Axially aligned design provides broader sound dispersion and more natural balance



Drive units: 25.4 mm (1") Pivoting Dome Tweeter
1x 114.3 mm (4.5") BDSS Bass/Mid - Mid/Woofer
Depth: 85.9 mm (3.38")
Grille Dimensions (Diameter) 136.7 mm (5.38")
Frequency Response: 35 Hz → 30 kHz
Max Sensitivity (1 watt @ 1 metre): 89 dB
Cut Out Dimensions (Diameter): 114.3 mm
Included Accessories: Wall Mounting Template
Paintable Magnetic Grille
Manufacturer's Warranty*: 5 Years Cabinet & Drivers