Alpha's email newsletter talks about damage to amplifiers as a result of 
overdrive -- the 
example is given of amplifiers designed to produce 1500w output with 40w drive 
being 
driven with 150w. They say that there is a log maintained by the firmware which 
records 
overdrive incidents and that they won't repair damage caused by this kind of 
abuse under 
warranty.
I am sympathetic to their attitude and don't approve of the philosophy that all 
knobs 
should always be set to 11. But sometimes it's unintentional.
My question -- and maybe there's an Alpha employee on the list who wants to 
answer -- is 
"isn't it possible to make an overdrive protection circuit that will cause the 
amplifier 
to fault fast enough to protect the tubes and components?"
-- 
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/               
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