The Ocharaku Flat4-Kaede The name Flat4 is derived from the description "Full-range 2-Element 4-Way Effect." According to the company website this 4-way effect is as follows: 1st effect Placement of opposed elements reduces mechanical vibration due to anti-resonance. 2nd effect Twin element parallel drive improves sound pressure sensitivity of low to middle frequency sound. 3rd...
“ Short impression is here: http://www.head-fi.org/t/642191/ocharaku-flat-4-sui-the-sound-of-tea Bonus impressions TBC. ” --autumnholy
“This new version of tour is slightly better than the old ones. The bass part is less than the first version and I can tell Beats started to care about the sound quality. But still, everything else don't go very well on this earphone. It is still closed, make people dizzy. Still, I think we can get better sound quality earphones in this price other than Beats Tour. ” --justinliu327