The Morpheus Reference Series II shielded subwoofer cable will capture the soul of the listener by delivering a true, transparent, and dynamic musical experience. Excellent bass extension and detail. The Morpheus Reference Series II is designed with Ultra Pure solid-core conductors of 24K gold, silver, and copper to deliver an absolutely visceral listening experience. Also available in a XLR balanced cable. Proudly Handcrafted in the USA.