“ Short impression is here: http://www.head-fi.org/t/642191/ocharaku-flat-4-sui-the-sound-of-tea Bonus impressions TBC. ” --autumnholy
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...
“These headphones have a nice open soundstage for an earbud headphone and are relatively comfortable to wear. The sound does seem to "settle" and refine somewhat after some time of burning in. They sound quite natural and relaxed especially at lower volumes but turn up the volume and these bad boys come alive. I find the slightly flat sound at lower volume levels does pay off at higher listening...” --pete4sound