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Why are car speaker 4 ohms and home speakers 8 ohms I understand the technical difference but why is there a difference?
Wiki User
∙ 15y ago
Car stereos use 12V which is lower than the 30V used in home stereos. Power = voltage^2/Resistance. To get the same power with lower voltage the speaker resistance is lower. Most home speakers are now 4 Ohms and car speakers are now 2 Ohms.
Wiki User
∙ 15y ago
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