Clearlight Audio - RDC 3 Equipment Cones ( Pack of 3 )
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Clearlight Audio - RDC 3 Equipment Cones ( Pack of 3 )

  (2 Reviews)
£34.96 Exc. VAT |  


Clearlight Audio RDC 3 Cones (Pack of 3)

  • Cone measuring 50mm in diameter and 23mm tall, load capacity 25kg per cone. 

RDC stands for Resonance Dampening Compound. We know that acoustic waves, resonance, spreads within a homogeneous material at a constant speed and direction. If we introduce another material, speed and direction are effected, resonance is influenced and cannot pass without being affected by the physical change in material. Therefore inhomogeneous materials do not conduct resonance well.

RDC has been created from micro-granules of materials at each end of the elasticity module with the same mass. The result is a very high mechanically stable inhomogeneous material that offers equal treatment of resonance frequencies across the audible range. Resonance is dampened equally.


RDC cones are now more than ever in demand as contemporary, apartment style, living, hard floors, and glass furniture/shelves in particular create a greater need for damping of resonance. Loud speakers, speaker stands, hi-fi components and now combination gaming/hd/blu-ray machines alike, can all benefit, not to mention taming the sub woofer!(There are 100’s of uses – even non hi-fi) Please see below to see where and how RDC cones can be used. RDC will last a lifetime and is, as has been quoted many times, the only accessory upgrade that enhances your system without taking anything away. In fact if anything it will expose areas of the system to be improved upon which may have been masked previously.

The Clearlight Audio RDC 3 cones are large diameter cone measuring 50mm in diameter, but only 23mm tall, load capacity 25kg per cone.

The larger flat surface area of the RDC 3 cone provides a better, more stable support for electronic components.

 Its composition and shape offer improved dissipation of vibrations of a lower modulation, which can adversely affect the performance of electronic circuitry.

  • Dimensions: Ø 50 mm, H 23 mm Colour: black Load capacity: max. 25 kg/spike
Average Rating (2 Reviews):  
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A 'strong and stable' upgrade
26 April 2018  | 

These are a great improvement on the RDC2 cones under my Ace Spacedeck's platform. They are unlikely to tip over in use and the deck stays in place. There is something particularly appealing about the sound of the deck so mounted, not that I was at all unhappy with it beforehand. The gains seem to be in musical coherence as well as clarity. I'm not a fan of complaint feet under the deck, by the way.

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RDC cones for big amps
20 October 2016  | 

Used these larger RDC "cones" rather than the smaller ones under my power amp which is extremely heavy at 40kg. They may look a bit odd but they've improved clarity and high frequencies and the amp now has far more "punch". After much experimentation, I found that a few bits of blu-tak placed inside the recess in the base of the cone would stick it to the amp but still allow the raised rim to make full contact with the amp. Compared to some of the more expensive isolation devices, these cones are definitely good value and are a huge improvement over the existing feet of my amp.

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1 of 1 people found this review helpful.

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