YFS is now in the custom headphone aftermarket cable business. Please contact us for cable ideas as we're ready to help. We have successfully built copper Litz 'Super 30' headphone cables for Audeze LCD series, Sennheiser HD580/600/650, Sennheiser HD700/ Oppo PM-1, Sennheiser HD800, HiFiMan HE400/500/560/1000, as well as many others. We use a 30 strand, pure copper Litz wire and the finest connectors available. We now offer silver coated copper and oure silver conductors as optional conductor material. Silver requires an upcharge. A Viablue 1/4" stereo jack comes standard on all YFS headphone cables. 7ft is our standard length. Please contact us for custom lengths. Add $35 per 1.5 feet of additional length for any cables over 7 feet. We can accommodate for balanced connectors or any other connector upon request for an additional charge. Silver coated Copper is also available as an alternate conductor material. PayPal is accepted for payment. We also accept checks and wire. Shipping via US Postal Priority Mail. Thank you for looking. No trades please.