On Sun, Oct 18, 2015 at 08:41:42AM +0200, Ricard Wanderlof wrote:
Is there any form of statistics on more precisely what type of failures in this area occur in the real world? Speakers have been mentioned (and I think were the original issue that started the discussion) and are a clear case. One could imagine output stages being overdriven (even with no load) in some way, or mismatched signal levels which could cause an opamp to fail for instance. But have any such cases been reported? It would seem very hard to diagnose for one thing, unless a hardware manufacturer explicitly noted it in some documentation (which I suspect would be very unlikely for say a motherboard or sound card manufacturer).
Speaker related issues are overwhelmingly the most common thing here, either straight burnout due to overdriving or mechanical damage caused by vibrations.