Low-Frequency Subwoofer Audio Interconnect Connect amplifiers, receivers, soundbars, and AVRs to a broad range of subwoofers with this AudioQuest Greyhound RCA subwoofer cable. Solid 0.5% Silver conductors minimize distortion, Foamed-Polyethylene preserves dynamic contrasts, and a Metal-Layer Noise-Dissipation efficiently dissipates high-frequency noise. The result is clearer, naturally beautiful music, intelligible dialog, and thrilling sound effects.