Logitech X-530 5.1 Channel Speaker System Computer Speakers "master wire hook" Questions

...master speaker has unfortunately snapped off after falling off my shelf. It has broken away from the connections inside the speaker, and really would like some advice as to what to do, can i replace ...

...master volume is un muted. check that plugins are inserted properly, if still no audio, click "start" right click "my computer" click "properties" click device manager" and look at your audio area,,, ...