Here is a description from the official site: "the sonic chair provides a unique audio experience, allowing you to sit at the very centre of a sound system."
这是来自官方网站的一段描述：“这种音乐座椅让你坐在音响系统的正中央，享受独特的音乐体验。”
2
Based on the principle of equivalent mass, it tests the impelling vibration in sonic wave vibration system, introduces the experiment condition and process.
为此参照等效质量原理对声振系统进行了激振试验，并对试验条件和试验方法进行了介绍。
3
Even if that doesn't pan out, the source says there indeed is a Sonic in the works for the system, and it is likely another secondary title.