Crossover Distortion Video??

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Crossover Distortion Video??

Postby ignition » Wed Mar 24, 2010 1:06 pm

Has anyone seen a before/after video or recording of an amp that's producing crossover distortion, and then after it's corrected? Trying to explain it to a friend long distance.
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Re: Crossover Distortion Video??

Postby flemingmras » Thu Mar 25, 2010 9:41 pm

ignition wrote:Has anyone seen a before/after video or recording of an amp that's producing crossover distortion, and then after it's corrected? Trying to explain it to a friend long distance.


No...not a video but have seen it on a scope more times to count. Here are a couple of crude pics of what a normal signal looks like along with a signal with massive x-over distortion.

Normal sine wave -

Image

Sine wave with crossover distortion...note the notch at the zero crossing point of the wave -

Image

Contrary to popular belief, crossover distortion is not a good indicator of the bias setting of an amp and should never be what you go by to bias the amp. Many other things influence crossover such as the amount of NFB.
There's just that fine line between stupid and clever - Nigel Tufnel
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