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 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 can be superior to spikes where cabinet resonance is transmitted down through the spike to the solid floor, where it 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.
This can be reduced further with the use of RDC Cone Cups and Combi-Bases in addition their size makes them ideal for use under electronic components, to isolate from platforms or shelves.
The RDC2 cone measures 30mm in diameter and is 27mm tall, load capacity 25kg per cone.