Technical problem-HELP!

[AngloScot]

I have a hifi system with dolby pro logic its 100 watts RMS. Wired up to the front left and right channels i have a goodmans active bass speaker which has a built in 'bridged amplifier system' whatever that is, the input is supposed to be around 10-20W per channel for this sub. Wired up to this active bass speaker i have a 400W 10 inch subwoofer its sounds stupid but it was actually a good bedroom system for a while...unfortunately the bass box part of my system is now dead :(

Can anyone help me with what sub is blown or how to test for which one it is, or even both. Also is there any way at all of salvaging the speakers they cost a lot of money! I am such a dumbass, thank you in advance :) Please help!