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
“ I rarely write reviews but after spending so much time trying to find good in-ear headphones I think my search has finally ended. I'm very impressed with the clarity of the sound through the entire sound range. The bass is also very impressive; something about it just feels right. They also feel very comfortable as well; most in-ear buds tend to make my ear canals uncomfortable after 30...” --hahaxixi