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LME49810 300 W amp kit from TaoBao (Mods)

Posted 23rd September 2011 at 07:19 AM by panson_hk

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The THD performance of this board can be improved by separate the input/NFB ground from the decoupling grounds. This is a common mistake in many kits.

Simply cut the trace as shown in the figure and connect the input/NFB ground to supply ground via a separate wire. THD improves as shown in the figure.

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