Re: Simple question: 2 4-Ohm cabinets equal...


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Posted by Dave Jackson on June 22, 2002 at 08:29:53:

In Reply to: Re: Simple question: 2 4-Ohm cabinets equal... posted by Toby Meyer on September 05, 2001 at 08:15:59:

: : : It depends how they are hooked up. If you plug 2 4-ohm cabs into 2 jacks on the back of your amp its going to be wired in parallel which would make it 2 ohms, and most amps cant hanldle that. If you connected the cabs in series it would be 8 ohms, but thats different.

: : I believe connecting the speakers in a daisy chain would still be parallel, same as connecting to the back of your amp. To connect them in series you would have to change the wiring inside the speaker cabinet.

:
: There's a formula to calculate the impendance of a speaker/cabinet:

: Wired parallel:

: Z = 1 / ( 1/A + 1/B )
: Z is the impendance of both speakers, A is the impendance of the first speaker, B the impendance of the second speaker

: Wired in series:

: Z = A + B

: If you wire two 4-Ohm speakers parallel:
: Z = 1 / ( 1/4 + 1/4 ) = 1 / ( 1/2 ) = 2


How exactly do you wire two 4 ohm speakers in series to result in 8 ohms?



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