MacBook Pro > Mercury Cable > iPurifier > Rane SL1 (with iDAC upgrade) > iDSD micro > Audeze LCD2 Headphone. Don’t believe any DJs would use LCD2 (£1,000) in their live sets, but I don’t mind using that in the office. BTW, this is a great piece to drop, Have Some Fun by DJ Felli Fel feat. Pitbull, Juicy J & Cee-Lo.