Quote:
Originally Posted by GrimJosef
It looks more like 18V from the picture (the trace spills over the top and bottom of the graticule).
But that's 18V pk-pk, which is about 6.4V RMS.
Into 7.5ohm that's 5.4W.
I'd be slightly surprised if it was clipping at that power. Are you sure it's not the scope that's clipping (it's best to keep the trace inside the graticule limits) ?
Cheers,
GJ
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I was just trying to be conservative. I have taken this picture some time ago, so I don't remember, but I will try some more measurements till clipping.
Is it better (more accurately) done with a dummy load or with the speaker?
I know speaker health won't like sine wave continuous output.
Regards.