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      05-20-2013, 11:45 AM   #15
bmw325i
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Drives: 2006 BMW 325i
Join Date: Oct 2010
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Quote:
Originally Posted by SpdRcer43 View Post
Here's a list of my newbie questions:[LIST][*]Does anyone know how to calculate what the ohm-age will be to each speaker? Does it even matter?
Since all of your speakers are 4 ohms, if you only wire one speaker per channel they will all be 4 ohms. So look at the 4 ohm rating on your amps. If money isn't a factor, look at Alpine PDX and JL HD series.

If you were to connect more than one of the same speaker to the same channel then it depends on how you wire it. In parallel, i.e. both positives together both negatives together, the impedance is cut in half since the power travels the same distance through two equally sized paths. So for two 4 ohm speakers in parallel your impedance at the amp is 2 ohms.

If you wire them in series, positive from amp to positive on 1st speaker, negative on the 1st speaker to the positive on the 2nd speaker, and the negative on the second speaker connected to the negative on the amp. The impedance would double, so two 4 ohm speakers would be 8 ohms.
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