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Old 12th October 2007, 22:33   #1
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Default A question about impedance

In what way does a speaker's impedance rating affect its performance ? For example the JBL CS series speakers are rated at 4ohms and the GTO speakers are 2ohm.
Since most amps have a higher power output at 2 ohms compared to 4ohms, does this mean that 2 ohm speakers will be louder than 4ohm speakers when driven with the same amp?
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Old 12th October 2007, 22:40   #2
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Default maximum power transfer

Quote:
Originally Posted by adityamunshi View Post
In what way does a speaker's impedance rating affect its performance ? For example the JBL CS series speakers are rated at 4ohms and the GTO speakers are 2ohm.
Since most amps have a higher power output at 2 ohms compared to 4ohms, does this mean that 2 ohm speakers will be louder than 4ohm speakers when driven with the same amp?
There is a maximum power transfer theorem that says maximum power gets transferred when the load impedance matches that of the source. I would think louder volume will be a way impedance match causes.
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Old 12th October 2007, 23:37   #3
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You may try reading post#32 onwards. It is very well explained in layman terms.

http://www.team-bhp.com/forum/ask-gu...-kicker-3.html

Last edited by rocksterraghu : 12th October 2007 at 23:38.
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Old 13th October 2007, 13:36   #4
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Quote:
Originally Posted by adityamunshi View Post
Since most amps have a higher power output at 2 ohms compared to 4ohms, does this mean that 2 ohm speakers will be louder than 4ohm speakers when driven with the same amp?
You are pretty right here.
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