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AudioQuest ThunderBird Zero BiWire Combo Speaker Cables reduce signal distortion by eliminating characteristic impedance, improving dynamic contrast, transient response, and bass impact. They use patented ground-noise dissipation to minimize interference and feature solid Perfect-Surface Copper+ conductors for clearer sound with less distortion. Their carbon-based Linearized Noise-Dissipation System effectively reduces radio-frequency noise across a wide range of frequencies. Designed for biwire setups, these cables deliver precise, uncompressed audio, allowing your amplifier to perform at its best with minimal signal loss.