Clearlight Audio RDC 2 Cones

New product


RDC Cones in stock at MCRU. An excellent and cost-effective upgrade.

Add to wishlist

Customer ratings and reviews

Nobody has posted a review yet
in this language

Clearlight Audio’s excellent RDC cones are now in stock at MCRU. We have used them for years in our own system and are now happy to have them in stock them and available for our customers. RDC means Resonance Dampening Compound. 

What is RDC? RDC stands for Resonance Dampening Compound. We know that acoustic waves (i.e. resonance) spread within a homogeneous material at a constant speed and direction. If we introduce another material, the speed and direction are affected. Because of the different densities of materials used in each ‘platform’, a uniform attenuation over the entire frequency spectrum is achieved.

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 work on loudspeakers (including sub-woofers), speaker-stands and individual hi-fi components - all will benefit greatly.

The Clearlight Audio RDC 2 cone can be used to replace spikes on smaller floor-standing loudspeakers or loudspeaker stands, and are also available unthreaded or with 6mm and 8mm threaded inserts.

On solid floors the RDC 2 cone helps to isolate the loudspeaker cabinet from its environment, giving a clearer, more natural tone to vocals and a tighter control of bass. Even on carpeted floors the nature of the RDC material reduces the effects of cabinet resonance, even if the cone does not penetrate through to the solid floor below.

This result can be superior to spikes, where cabinet resonance is transmitted down through the spike to the solid floor and is then reflected back up through the spike and back into the loudspeaker cabinet, causing colouration. RDC Cone Cups can be used to reduce the risk of cones slipping on solid floors, whilst at the same time improving the level of decoupling of the loudspeaker from its environment. 

On wooden floors the RDC 2 cone offers protection from damage, whilst at the same time reducing the effect of resonance transmitted into the floor. This is especially useful on suspended floors, where excessive bass can be transmitted to the room below. The results can be further enhanced with the use of RDC Cone Cups and Combi-Bases. The size of RDC cones makes them ideal for use under electronic components, to isolate the equipment from platforms or shelves.

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 that may have been masked previously.

Cones measure 30mm in diameter and 27mm tall, load carrying capacity 25kg per cone.

Questions (0)

No customer questions for the moment.

Your Question has been successfully sent our team. Thanks for question!
Ask a question
hide form
  Ask a question


Be the first to write your review !