Beware of black market traders who remove serial numbers. You can not be sure where the cables originate and what they might be funding. The black market cables definitely do not carry UK warranty and there is no guarantee the terminations are by Nordost in the factory. Even if you do not buy from High End Cable you should only buy new from an approved Nordost dealer.
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After treating your cables with ECO 3 you will notice music sounds more defined with any harshness removed. ECO 3 is a proprietary formula developed by Nordost that will work with any cable. ECO 3 should be used when installing new cables and be applied about once every two weeks or more frequently depending upon the environment.
ECO 3 is also very effective for treating Compact Discs. When applied to the label side of a CD you will notice a large improvement in sound quality, as stray electrical charges that build up on the discs are removed.
this noise at the source results in a much more detailed and musical