I had a pair of my 555's sent for repair twice over 5 years. Once under warranty for a bad speaker module, and once for cracking. Still it's lasted this long,

I had a pair of my 555's sent for repair twice over 5 years. Once under warranty for a bad speaker module, and once for cracking. Still it's lasted this long, one pair 6+ years, another going on 3 now, so I'm pretty satisfied with them.