measuring amplifier distortion ?


2005-01-01 3:33 pm
What is the easiest way to measure the THD of an amplifier ?

I know about RMAA but since its soundcard based, its numbers arent very accurate.

I saw in the citation 12 pdf by N Pass that an amp could measure itself but then all u get is a waveform which amplitude tell the amount of distortion but converting a voltage into % THD seem like a tedious and obscure task, and u need two channels to do it.

Any ideas ? Getting access to AP test gear would be golden but thats not gonna happen.