Award Winning Cables from QED QED ReferenceDIGITAL Audio75? CoaxialInterconnect Cable0.36m QED Reference Digital Audio 40 is the new standard for digital coaxial S/PDIF signals.Reference Digital Audio 40 utilises a carefully engineered geometry to achieve the precise characteristic impedance required for the maximum transfer of S/PDIF signals. Silver plated conductors deliver a low resistance path for high frequencies and new QED Digiloc2 plugs more closely match the cables characteristic impedance, reducing return loss by up to 1dB when compared to conventional RCA plugs. This ensures optimal signal transfer and improved micro-timing of the audio signal. Just ListenSilver plated signal carriers, effective high quality shielding and impedance matched cordage and plugs all combine to create audible sonic improvements when compared to the competition Triple Layer Electromagnetic ShieldingThrough the use of factory controlled geometry and low permittivity foamed polyethylene dielectrics, Reference Digital Audio 40 maintains the correct characteristic impedance to match the transmission line between digital source and sink precisely. This makes for a very low jitter signal transfer which, listening tests have shown, leads to clearly audible sonic improvements. 75 Ohm Impedance matched Digiloc2TM RCA plugs Feature high-purity copper signal and ground connections supported by a new non-conductive low eddy current body. The hollow central pin eliminates the skin effect at high frequencies and the revised locking barrel design clamps the dual blade ground connection firmly to the RCA sockets for improved noise rejection. The optimised geometry of the plugs and the dielectric materials selected have resulted in a closer impedance match for low jitter S/PDIF transmission, resulting in a measurable 1.5 dB reduction in insertion loss, compared to ordinary RCA plugs The all new Digiloc2™ design cleverly substitutes high rigidity thermoplastic material for both the inner support structure and the cable strain relief to eliminate the distorting effects of eddy currents, which are always present in ordinary plugs where bulk brass is used instead. Triple Layer Electromagnetic ShieldingA dual layer closely woven 99.999% OFC shield braid and aluminium mylar wrap with 100% coverage comprise a triple layer electromagnetic shield coaxially spaced around the central signal carrier within a foamed polyethylene dielectric. This ensures that interference signals induced by nearby high current noise sources do not contribute to higher signal jitter than would otherwise be the case. By the same token the shielding prevents unwanted voltage induced interference escaping the cable which might affect nearby analogue signal carriers. Cable on offer is a brand new LATEST VERSION GENUINE QED Reference Digital Audio 40 cable fitted with new improved QED Digiloc2 RCA plugs, CUSTOM made and supplied by an authorised QED reseller with QED 2 Year Warranty. Key Features Silver Plated 99.999% Oxygen Free Copper central conductorExtruded foamed Polyethylene (PE) dielectric - for sonic purity and low return lossDouble 99.999% OFC braid plus Al/Mylar wrap for 100% electromagnetic screening coverageTwin leaf 24c Gold plated QED Digiloc2™ RCA plugs featuring high purity copper contacts, pin and low eddy current design75 ohm coaxial design with closely matched locking plug for reduced return loss ULTRA LOW JITTER Jitter is the undesired deviation from true periodicity of an assumed periodic signal in electronics and telecommunications, often in relation to a reference clock source. A cable displaying very low jitter has been measured at typically 30ps. Post & Packing costs are kept to a minimum: FREE Royal Mail 48 in UK Buy with confidence - money back guarantee!