Resistor Noise Can Be Deafening, and Hard to Reduce (2007)
&gt; In fact, a remarkably common response to a diagnosis of resistor noise is to seek a source of &quot;good&quot; resistors, with &quot;good&quot; being defined as without thermal noise. This is impossible.<p>It&#x27;s impossible to make a totally noiseless resistor, but it&#x27;s also important to understand that all resistors are not created equal.<p>Most resistors have noise levels that are orders of magnitude above the Johnson limit. Potentiometers are especially bad.<p>If you want &quot;good&quot; resistors for noise-critical applications, I recommend metal thin-film resistors. They hardly cost any extra anyway.<p>Also, in cases where resistors are used to set DC signals such as offsets and biases, you can add capacitors to filter the heck out of those lines to decrease their noise contribution.