What is nominal impedance in speakers?

Nominal impedance in electrical engineering and audio engineering refers to the approximate designed impedance of an electrical circuit or device. The term is applied in a number of different fields, most often being encountered in respect of: The nominal value of the input impedance of a radio frequency antenna.

So, what is impedance in speakers?

4-ohm Speakers Should Typically Be Mated with Higher Power Amplifiers. Most bookshelf and tower speakers are rated either 6-ohms or 8-ohms. Any speaker impedance rating that is 4-ohms is typically going to be a high-end, audiophile product that wants an amplifier that can really put out some power.

What does the impedance of a speaker mean?

A lower impedance speaker will accept more power. For example, a 4 ohm speaker will extract more power from your amplifier than a 8 ohm speaker, about twice as much. The problem most people have with speaker impedances is how to combine speakers safely without blowing the amplifier or speakers.

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