Seems to be about £12-£15 delivered elsewhere
Subwoofer Audio Cables are designed specifically for the very low-bass frequencies produced by subwoofers. They use a single RCA jack for audio input and/or output.
PureAV Silver Series Subwoofer Audio Cables use superior-grade materials and advanced technologies to deliver fuller, deeper, more extended bass response.
* Drastically reduces signal distortion for unrivaled audio clarity using 99.9997% oxygen-free, PCOCC conductors and high-purity, silver solder joints
* Optimizes performance at all frequencies for consistent, exact sound reproduction using hybrid-conductor technology
* Maintains stronger signals that yield superior sonic accuracy with precision-formulated, polyethylene dielectric material
* Isolates from outside noise for superior clarity through double-shielded construction and individually insulated mid-bass/upper-bass conductors
* Protects against wire damage for consistently high-quality audio with integrated strain relief
* Maintains integrity, even when bent with abrasion-resistant, flexible PVC jacket
* Creates precise contact for low loss with split-tip, centre-pin, and 8-cut, 24k gold-plated connectors
* Provides comfort and ease of install with non-slip rubber grip and integrated colour-coding