Posted by GarMan [ 216.13.136.38 ] on March 01, 2006 at 13:43:33:
According to spec sheets of National's amp chips, THD declines as output power increase.
As an example, THD for LM3886, 8 ohm load, 1kHz:
0.03% at 10 mW
0.01% at 0.1 W
0.006% at 1 W
0.003% at 10 W
Does this mean that if I put an L-pad at the output of the amp to reduce signal to speaker by say 20dB, I can force the chip to operate at a higher wattage and therefore, lower distortion?
gar.
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