Quote:
Originally Posted by roscopico
What difference does the Ohm make?
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Without getting too technical.
Ohm (in loudspeakers) is impedance or load.
Less impedance (ohms) make the speaker easier to drive.
An amplifier will give more power (watts) if connected to a lower impedance (ohms) speaker.
However..beware that amplifiers usually have a lowest recommended impedance to be used with them, disregarding this might cause damage to the amplifier.
Therefore in a car I would suggest replacing like for like, i.e. staying a 4 ohms.
Ohm - Wikipedia, the free encyclopedia
Electrical impedance - Wikipedia, the free encyclopedia
Loudspeaker - Wikipedia, the free encyclopedia