AudioQuest Tower 1.5m RCA Analog Audio Interconnect Cable Solid LongGrain Copper (LGC) Conductors - Solid conductors eliminate strand-interaction distortion. Evergreen's solid LongGrain Copper allows a smoother and clearer sound than cables using regular OFHC (OxygenFree HighConductivity) copper. FoamedPolyethylene Insulation - Tower uses airfilled FoamedPolyethylene Insulation on both conductors because air absorbs next to no energy and Polyethylene is lowloss and has a benign distortion profile. MetalLayer NoiseDissipation System (NDS) - 100% shield coverage is easy. Preventing captured RF Interference from modulating the equipment's ground reference requires AQ's NoiseDissipation System. NoiseDissipation System prevents a significant amount of RFI from reaching the equipment's ground plane. Asymmetrical DoubleBalanced Geometry - While many singleended cable designs use a single path for both the ground and the shield, DoubleBalanced designs separate the two for cleaner, quieter performance. ColdWelded GoldPlated RCA Plugs - This plug design allows for a connection devoid of solder, which is a common source of distortion. Because the ground shells are stamped instead of machined, the metal can be chosen for low distortion instead of machinability.