AudioQuest Rocket 33 Single-to-BiWire Speaker Cable With 300 Series Silver Banana PlugsThis Double Star-Quad Geometry "Rocket" cable does not look normal on the outside and it is not at all normal on the inside. A sophisticated combination of extraordinary materials and extremely refined design allows the Rockets to honor all types of music equally.SOLID LONG-GRAIN COPPER/PERFECT-SURFACE COPPER (LGC/PSC) CONDUCTORS: Rocket 33 uses a carefully finessed combination of Long-Grain Copper and extremely high-purity Perfect-Surface Copper. LGC has fewer oxides within the conducting material less impurities less grain boundaries and definitively better performance. The astonishingly smooth and pure PSC further eliminates harshness and greatly increases clarity.CARBON-BASED NOISE-DISSIPATION and CROSS-TALK-DISSIPATION SYSTEMS (INSULATION): The four negative conductors in Rocket 33 are insulated with partially conductive Carbon-Loaded Polyethylene. This remarkable material damps radio-frequency garbage from being fed back into the amplifier. The sonic benefit is exactly the same reduction in "hash" and better dimensionality that comes whenever RF garbage is reduced in an audio circuit. Rocket 33 uses Nitrogen-Injected Foamed-Polyethylene Insulation on its positive conductors because air absorbs next to no energy and Polyethylene is low-loss with a benign distortion profile. Thanks to all the air in Foamed-Polyethylene Insulation it causes much less of the "out-of-focus" effect common to other materials.DOUBLE STAR-QUAD GEOMETRY: The relationship between conductors defines a cable"s most basic electrical values (capacitance and inductance). However even when those variables are kept in a reasonable balance the relationship between conductors can be varied in ways that greatly affect the sound.