I was surprised when I first listen to music with those earphones. Because cabins are big enough to promise a rich listening experience. In addition, it includes multiple drivers to separate different frequencies. But when I listen to music with it, it did not sound as it looks. I tested it with mobile phone, laptop, ZIKU HD-X10 Pro and Yescool S5. I compared it with Sennheiser CX 3.00 and a comparatively low-priced JBL headphone. I used genuine flac files for maximizing my experience with it. My impression is: in general it sounds boring because...