CommentStreams:575682e203f578973a9b07bd1eb2afba

Hello Lisa，

> please refer X400 V3.0; Jumper setting --AMP: Short--60W amplifier in > shutdown mode; Open--60W amplifier in working mode

I know I can disable the speakers manually by jumpers, but I was asking for speaker auto-mute when plugging in a headphone, is this possible ? Like most other devices do (i.e. smartphones). Thanks!