Samson Resolv 65a Speaker - No Power!

Hi,

I switched my speakers on as normal the other day and only one of the two powered up. I have not been able to get left speaker to work. I tried using the power lead from the right speaker and this did not solve the problem, so there is no issue with the fuse. I have taken the back off the speaker, but can not see any other fuses inside!

Can anyone suggest a way of me getting this speaker back up and running? Or do I need to take it to a specialist?

Cheers,

John