The Multi-Award Winning Silver Anniversary XT Cable Delivers Superior Performance For All Your Hi-Fi And Home Theatre Needs Silver Anniversary-XT has been specifically designed as the natural replacement for the multi-award winning Silver Anniversary speaker cable. Combining the features of Silver Anniversary with the added enhancement of X-Tube technology to combat the skin effect and deliver stunning detail. High Performance Low Density Polyethylene Dielectric Cuts down on the amount of audio signal energy lost due to cable capacitance. X-Tube Technology At low frequencies both X-TubeTM and conventional stranded/solid core speaker cables convey signals in a linear way. However, at high frequencies, X-TubeTM retains a near-linear signal transfer, whereas the conventional cable fails to conduct uniformly across the entire conductor area. The result is that X-TubeTM delivers greater fidelity across the audio spectrum which would other wise be lost in ordinary cables.