MASS-Kobo is the legendary Headphone Amplifier manufacturer in Shizuoka, Japan, designed and made by the recording engineer and electrical engineer Mr. Masuda. Mr. Masuda, with his MASS-Kobo, has been in the high-end industry since 2007. Today we have brought the most recent product in the...

After purchasing the world smallest full balance portable headphone amp with a 4pin XLR the MASS-Kobo 424 last month I have addicted to MASS-Kobo clean , powerful yet detail sound signature, in less then 3 week time I had say goodbye to some of my portable audio gear and save up 648000yen to say...