It was unfortunate that I couldn't go due to circumstances.
Speaking of headphones, there's the headphone amplifier. So,
this is the HDA-5210MK3 from BAKOON PRODUCTS.
//www.exclusive-audio.jp/shop/products/detail.php?product_id=12
It is not very well-known in Japan, but overseas, it is a quite famous headphone amplifier regardless of East or West.
Please enjoy the overwhelmingly powerful sound of the current output!
