Wow! If these headphones for 20 already sounds so good; how then listen to the parts for 200 ?! My ears say: Very large can not be the difference, for the Senner CX175 already sound great! And for noise suppression: On the bike, the listeners are already really borderline because they shield great from. As one may adjust the music just very quiet or leave a page freely. When vacuuming, I need a hand I check if the vacuum cleaner is on, because I hear no longer do it at some louder music. :-) Any time!