I've owned many headphones but now I have : Fidelio S2, Yamaha PRO 500, Sennheiser HD598. Speakers : Wharfdale Diamond 10.1/Cambridge Audio stereo amp, Cerwin-Wega active subwoofer. Many dac/headphone opamps. I don't agree with flat earphones, I want to hear music as if I play them, I play the piano drums and guitar and I know how my instruments sound and how they are supposed to sound. Flat earphones sound dull and don't reproduce what I hear when I play my instruments. Bass : Super solid bass, coming from xb90ex or yamaha pro 500 or my cerwin-wega...