Rainbow Audio

2fast4thelaw

The lower the number of Ohms, the more difficult it is for an amplifier to drive the load.

Most all car audio speakers are 4 ohm therefore all car audio amplifiers are rated to drive 4 ohm speaker. Any good car audio amplifier will drive a 2 ohm load without breaking a sweat.

Most home audio speakers are 8 ohm (higher resistance)

In car audio speakers, specifically subwoofers, come in different ohms ratings for getting the most out of your amplifier.

Lets say your amplifer has a rating of 250watts RMS X 1 @ 4ohms and 500watts RMS X1 @ 2 ohms.

If have a subwoofer that is 2 Ohms you can harness that extra 250 watts that would otherwise not be produced if you are using a 4 ohm driver.

Now lets say you have (2) identical 4 ohm subwoofers, you can wire them parallel (+ to + and - to - ) together and the two subwoofers wired in this configuration will create a 2 ohm load.

Remember that your amplifier will work twice as hard to drive a 2 ohm load so make sure it can handle this rating and that it gets proper cooling to disapate the extra heat.

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