hey deepanshu830, just get the ZO!! I just got mine today, Zwing!! I finally got that sweet spot on the EX600"s, and pretty much seemed to solve the harsh mids and siblance issue!! and there sounding pretty SWEET!! it was a combination of things, and the ZO puts the icing on the cake, but yea I'd agree with mastershake, and get an amp to get all the 262's can put out!! impedance is 150 ohm! and they need a bit of burning in, I think I did mine for a good 100 hrs. I'd listen to it in the day and then burn it in with a whole bunch of stuff over night, frequency sweeps white and pink noise kinds of things,