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Definitive Technology DI 4.5R Speaker
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£320.00 inc. VAT
£266.67 excl. VAT
In stock (UK Delivery: Wed)
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Definitive Technology DI 4.5R ***Clearance Save £238***

Clearance item

Since their inception in 1990 Definitive Technology have been at the forefront of providing superior sounding home audio and home theatre loudspeakers. Founded by audio enthusiasts who are experts in Speaker design and acoustics, Definitive Technology loudspeakers are among the most positively reviewed on the market place. They have also become the best-selling premium home loudspeakers in the US, collecting numerous industry awards in the process.

Definitive Technology aim to provide superior sound quality for both music and movies. Definitive Technology speakers are sleek and stylish with an elegant and timeless design, meaning they look and sound great in a range of environments.


General Information
  • Price per speaker: £160.00
  • Speaker type: Mono
  • Power type: Passive
  • Enclosure type: Open design
  • Guarantee period: 60 months
  • Weight: 1.1kg
  • Ceiling
  • Other applications: Kitchen, Music, Home Cinema
  • Alignment with ceiling: Flat
  • Visible shape: Circular
  • Visible colour: White (Paintable)
  • Overall diameter: 136mm
  • Cutout diameter: 115mm
  • Overall depth: 88mm
  • Mounting depth: 86mm
Detailed Specifications
  • Frequency range: 35hz - 30khz
  • Impedance: 8 - 8 Ohms
  • Compatible amplifier: 10 - 150 Watts RMS
  • Sensitivity: 88dB
Speaker Driver Information
  • Tweeter: 1 pivoting
  • Bass: 1 fixed flat (114mm)
Controls & Adjustments


Definitive’s Disappearing™ series feature near invisibility. This is due to their small diameter, hidden flange design and low profile grilles. Installation of the DI 4.5R is incredibly straight forward and just as simple as any traditional ceiling speaker.

These speakers also feature some of Definitive’s most advanced technologies, such as pivoting tweeters for spectacular audio performance. Thanks to these technologies this speaker also offers the bass output and dynamic range of a larger driver.

The DI series have been designed to disperse sound over a wide area, whilst maintaining a natural and well-balanced sound. Furthermore, the adjustable tweeter means that the DI 4.5R can be aimed to a specific position, providing superior coverage.

The DI series offer great audio performance and looks sleeker than traditional ceiling speakers.

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