Hello, I commute 4 hours a day and am looking for a pair of cans on the go. My source is Theorem 720 DAC/AMP taking it's digital signal from my iphone 5. Headphones used currently are Ultrasone Pro 900 with silver plated OCC copper cable. I love the sound however the isolation and leakage is not the best for traveling by bus. I mean it's not TERRIBLE but I can hear a lot of what's going on around me. My requirements: -balanced headphones (one wire in to each can) -removable cables -good isolation -minimal leakage - I listen to EDM (dubstep, drum and bass) -I don't mind some color in my lows -I like industrial designs and metal construction such as the Beyerdynamics (DT770, 880, T70 etc) but it's not really necessary as long as it's durable. Headphones I like sound wise: Ultrasone Pro 900 Hifiman HE500 Fostex TH900 (I would buy these but the cable is not removable and it's clunky/thick/heavy) Basically sound wise the Hifiman HE-500 is the PERFECT headphone for me sound and feature wise but the isolation is worse than my Pro 900. I love the way HE-500 sounds and it's going for an amazing price at my local shop. Blah Please help me with some suggestions.