Coaxial digital cables are similar to RCA audio cables, however they transmit digital signals rather than analog, offering higher bandwidth for a more reliable connection. The outer coaxial cable provides added strength and durability compared to a regular audio cable. These cables are a necessity for any professional home audio system to maintain sound quality. Perfect for use with any type of speaker or subwoofer, with lengths ranging from 75 cm up to 6 metres. Some available cables are specifically for use with subwoofers, providing a secure connection and high audio quality. These digital cables come in predetermined lengths with plugs already attached, however Selby also offers pre cut cable for manual wiring.