Will the original WA7 work like this?   Does anyone know of anyone who makes a decent quality cable to do this?

I am currently using a K702 and the SiCPhones amp from Kickstarter and a Fostex HP-A3 for a DAC. I love the combo, but in true head-fi style I am not completely satisfied so I have a WA7 on the way. I am looking for a new set of headphones to pair with it. I am considering getting the DX1000...