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4 Ohm vs 8 Ohm speakers?

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#1 of 2 OFFLINE   Tom Weeks

Tom Weeks

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Posted June 28 2002 - 03:44 PM

Is there any advantage in having a 4 ohm set of speakers over an 8 ohm? Is there any significant difference in the two ratings besides the power output?

#2 of 2 OFFLINE   John F. Palacio

John F. Palacio

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Posted June 29 2002 - 01:29 AM

Hi, Tom. 4 ohm speakers will "drain" twice the current from a given amplifier than 8 ohm speakers. (This applies only to amplifiers with no output transformer) However for this to result in more sound output would necessitate both speakers in question to be of the same efficiency. In other words if you have identical speakers one being 8 ohms and the other 4 ohms, the 4 ohm speaker will be 3 dB louder. John
Best regards.

Freelance Video Control Engineer

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