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DC offset level to avoid speakers damage-

Dear All would you help me to understand this?
My actual power amp has very low DC offset.

I understood that Pass aleph renomated amps that i am targeting have a quite high offset in the range of 50mV.
Something to be worried about ?

Which is the max tolerated level from a speaker ? Which kind of damage can occour ?
Any speaker is more sensitive ?
Tks
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Showing 2 responses by eldartford

eldartford
4,262 posts
 
POWER = VOLTAGE^2 * RESISTANCE

0.050^2 * 8ohms = 0.02 WATTS.

You don't have a problem!
eldartford
4,262 posts
 
Bob_bundas. You found my goofup before I got back to fix it. Yes...divided by R. So it is even less of a problem.

I had occasion to adjust bias only once when I fixed a 60 watt Tandberg receiver output stage. I don't remember what the output bias spec was, but I do remember that I had no problem getting it down to less than 5 millivolts. I think that designers/manufacturers set the spec high because it is not critical.
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