ELI5: Explain Like I'm 5

Nominal impedance

Nominal impedance is a number that tells us how much electricity can flow through a speaker or any electronic device. Imagine you have a toy car that runs on batteries. The car will move faster if you put new batteries in it and slower if the batteries are old or weak. Speakers work in a similar way; if they have high nominal impedance, they will need more electricity to work properly. If they have low nominal impedance, they will need less electricity to work.

Nominal impedance is measured in ohms (Ω), which is a special unit used to measure electric resistance. We use this number to help us match speakers and other electronic devices with the right amount of electricity. It's like making sure you put the right battery size in the toy car – if you use the wrong size, it won't run as well and could even be damaged!

So, to summarize, nominal impedance is a special number that tells us how much electricity a speaker or other electronic device needs to work properly. It helps us match devices with the right amount of electricity, kind of like making sure you use the right battery size in a toy car.