What makes this Audioquest Sydney unique and sets it apart from the other cables in the Audioquest Bridges and Falls series is the use of silver-finished connectors and Polyethylene Air-Tubes. After all, any solid material adjacent to a conductor is actually part of a non-perfect circuit. Cable insulation and circuit board materials absorb energy (loss). Some of this energy is stored and released again as deformation. Because the air in the Polyethylene Air-Tubes absorbs virtually no energy, Polyethylene has virtually no loss or distortion and this leads to audible differences in quality. In all cables in this series, the left and right channels are brought together in a single jacket. So please keep in mind that the plugs of the Bridges and Falls cables are necessarily quite close together and allow a maximum distance between connectors of 7cm. Audioquest Sydney is available in RCA, 3.5mm and 3.5mm - RCA in lengths from 0.6m to 20m.