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
“First of all, I'd like to mention overall view of this headphones, it's really stylish. I've listened to them with Fiio E6. Without burn-in, their sound IMO is extremely owerbrighten, but after 20-25 hours it's become more straight and normal. I think this headphones sounds good for vocals, instrumentals and classical music, due to nice airy highs and mids. On some rock songs they're...” --cleg