Headphone adapter for Ayre Codex

Hey Audiogoners,

I have a pair of ZMF headphones on the way, with a stereo 4 pin XLR cable that will work with my Violectric V281. I also have an Ayre Codex DAC/amp that I'm auditioning and would like to compare. The Codex has stereo dual 3.5mm headphone output jacks. Any recommendations on an 4 pin XLR to stereo dual 3.5mm adapter?

Also, any insights/opinions on the v281 vs. the Codex as a headphone amp would be welcome.

Thanks.