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 am tired of: throwing away earphones, wasting money, and destroying the environment. Ironbuds promised to be an answer to all three - imho they've cracked it. What is surprising is how good they sound. Been waiting a year for Acoustic Forge to release these. I posted in the forums about 8 months ago about them - but Thomas (the CEO) announced they were having some difficulties...” --intelegant