IXOS XHK235 Subwoofer cable kit This new subwoofer lead from IXOS, the IXOS XHK235 boasts two of the most important factors in any good quality lead: performance and value for money. With its high grade pure crystal oxygen free copper conductors plus the hard gold plated RCA's, you can expect greater signal integrity, more detail and a better signal transfer .The IXOS XHK235 connects between your amplifier/preamp processor and your subwoofer. When considering performance per pound, the XHK235 is stunning, giving you great subwoofer performance and a strong connection. A Y-Splitter is included for connection to subs with 2 RCA inputs, along with the more traditional subwoofers with 1 RCA input.