This is why I'd never buy very large, expensive, floor-standing loudspeakers that are not manufactured within a comfortable driving distance from home. 70 lbs per speaker is about my size limit. A ~half-day drive away is about my distance limit.
Other large products (like appliances) have in-home service networks. Back in the 50s or 60s, a TV repair guy would come to the house. Never heard of that for HiFi. Good thing speakers usually last a long time.