A New EC-Composite LM3886 Amp

[wwwtttwww]

This is the final schematics of the amp.

 

[TNT]

Assembling an floor test setup.

Great effort. Nice amp indeed. The multi tone low freq behaviour - is that due to the 60Hz or something else?

Please do use a bit larger pictures (both photos and screenshots) if possible - don't be afraid of say 1024 pixels width.

Thanks!

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[wwwtttwww]

From my double tone test 60Hz, 7kHz, you can see the 6hz has a very fat column.

I don't why.

 

[stv]

the 6hz has a very fat column

You mean 60 Hz?
Try increasing fft window size.

 

[wwwtttwww]

Yes. it is 60hz not 6hz.

I will try next time.