Hello all. I am currently using an old ipod (Rockboxed) with WAV files, Fiio dock out cable, Fiio E7 and Sennheiser HD 595's. I am happy with this sound but like the rest of you guys I am chasing the next high. I would prefer new cans as the Fiio E7 is a recent acqusition. So, what would be a logical upgrade for cans? I am open to suggestions, I am traditionally a Sennheiser man but am open minded. Budget wise, £200 - £300 and they must be able to be driven decently by the E7. Hit me up with some idea! Thanks.