hd560s是平衡耳机,原配线也是四芯2.5平衡接口,接了一个6.3单端口,你剪掉换成平衡口就行
https://diyaudioheaven.wordpress.com/headphones/measurements/brands-s-se/hd-560s/
“Internally the cable is 4-wire construction litz wire and the return signals are combined in the 6.3mm TRS plug. Those that know how to solder litz wire can shorten the cable or turn it into a balanced cable.”