Wavelet Design、世界初の“ダイナミックBAドライバ”搭載イヤフォン「OPUS1」
http://av.watch.impress.co.jp/docs/news/20150507_700684.html
http://www.phileweb.com/news/audio/201505/07/15814.html
http://www.zionote.com/2012/waveletdesign/
http://www.zionote.com/2012/wp-content/uploads/opus1_4.jpg
http://www.zionote.com/2012/wp-content/uploads/opus1_1.jpg
http://www.zionote.com/2012/wp-content/uploads/opus1_5.jpg