Man been reading, reading & reading I guess my choice is between the Sennheiser HD 598 Cs and Beyerdynamic DT 770 pro 80 ohm. From reading depending who did the review the Beyerdynamic's have better bass and more comfortable long term wearing than the Sennheisers. The Sennheisers are 23 ohm & 10 – 28,000 Hz frequency response and the Beyerdynamics are 80 ohm & 5 Hz - 35,000 Hz frequency response. Been reading so much on them it's starting to get confusing ..lol. But out of the 2 the Beyer's seem to be the better and have better bass or am I wrong? I just wish the Beyer's had replacable cable like the Sennheisers. I'm disabled now so money is a big deal I have to make the right purchase I can't blow money I have to save for months to get. Thanks again everyone for input.