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Measuring 2-channel Buckeye Purifi Amplifier Performance

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Rick Sykora

Rick Sykora

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So, as am updating my amps, here is some visual proof for the cause of the slight distortion rise that was seen when Amir tested the Buckey 3 channel amp...
1677353169914.png



Note that the above graph is just THD vs Power. I thought this would be more interesting as the ferrous content primarily introduces distortion. For a preview of updated SINAD vs Power results, see below...
1677350536106.png

Note the expected hockey stick graph as the distortion rise has been reduced. :)
 

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AndreaT

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So, as am updating my amps, here is some visual proof for the cause of the slight distortion rise that was seen when Amir tested the Buckey 3 channel amp...

View attachment 267430

Note that the above graph is just THD vs Power. I thought this would be more interesting as the ferrous content primarily introduces distortion. For a preview of updated SINAD vs Power results, see below...
View attachment 267431
Note the expected hockey stick graph as the distortion rise has been reduced. :)
It might sound naive, but what are ferro and non-ferro tabs?
 
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Rick Sykora

Rick Sykora

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It might sound naive, but what are ferro and non-ferro tabs?

In this case, the original binding post tabs had steel content, the new ones are brass.
 
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Rick Sykora

Rick Sykora

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Are the graph labels reversed? Shouldn't the non-ferro tabs give lower THD?

index.php

Thanks good point, the label UI is tricky here, will fix. :facepalm:
 
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AdamG

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