Originally Posted by
globalwanderer84
GENERAL CONDITIONS OF CARRIAGE FOR PASSENGERS AND BAGGAGE Section 9.3.3.
Sorry
Your speakers are not covered. Sorry you have learnt the hard away about travelling with electronics - in hand carry, or via freight. Never check in luggage (bubble wrap is pointless).
You might get the damaged suitcase and incidentals repaid, but not the speakers. They aren't responding anymore as you are demanding something that they are not obligated to give. Not great CS, but they should at least transfer the balance while they continue to argue their point with you.
The other problem you are having is the claim on your insurance - if that's been paid by insurance already, the airline doesn't actually owe you anything. If you have told the airline as much, that could also be why they aren't responding.
Clarity
You are incorrect. The Montreal Convention does not permit any exclusion of liability for contents. If the bag is accepted by the carrier, all its contents are subject to the coverage afforded by the Convention. The conditions of carriage are void.
OP, you should submit a complaint to a local regulator.