This is a very simple project that takes only a few hours to make. It is a pair of 8 ohm resistive loads which can be used to test a mono or stereo power amplifier.

If you are working on an audio amp, you often need to see how it will behave when it is delivering power to a load. Using real loudspeakers is not practical, especially if you want to test at high levels and with sine waves. The noise would be unbearable, also you might damage a speaker. So you need a load to use instead of a loudspeaker.

Read more