Don't know much about that particular cab. Some cabs like the old peavey cabs I had back in the late 90s early 2000s had these little bulbs in them that would actually glow a little bit through the port if the cab was being pushed too hard and would go out and cause the cab to stop working. Could be that or something else. I had a cab where one time I pushed it really hard and the actual speaker wire inside the cab unhooked from the speaker. I know t sounds crazy but make sure all the wires in the cab are connected to something. I wouldn't think the speakers are totally screwed but Worse case scenario you're out $150-$200 for some good new speakers.