AudioQuest Rocket 33 CL3/FT4 In-Wall Rated Bulk Speaker Cable

Solid Perfect-Surface Copper (PSC) and Long-Grain Copper (LGC) Conductors
This cable uses a carefully finessed combination of Long-Grain Copper (LGC) and extremely high-purity Perfect-Surface Copper (PSC). 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
This cable's negative conductors are covered with partially conductive Carbon-Loaded Polyethylene. This remarkable material reduces radio-frequency garbage being fed back into the amplifier. The sonic benefit is exactly the same reduction in "hash" and improved dimensionality that comes whenever RF interference is reduced in an audio circuit. In addition, a carbon layer damps interaction between positive and negative conductors, and an external Carbon-Based Noise-Dissipation System reduces external interference.

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 reasonably neutral balance, the particular geometric relationship between conductors greatly affects the sound. Star-Quad geometry is not only vastly superior to conductors run in parallel, but also to the same conductors as two twisted pairs.

Foamed Polyethylene Insulation
Any solid material adjacent to a conductor is actually part of an imperfect circuit. Wire insulation and circuit board materials all absorb energy. Some of this energy is stored and then released as distortion. This cable, however, uses air-filled Foamed-Polyethylene Insulation on both conductors. Because air absorbs next to no energy and Polyethylene is low-loss and has a benign distortion profile, Foamed-PE, with its high air content, causes much less of the out-of-focus effect common to other materials.