Quote:
Originally Posted by SexieWASD
For an amp remember that you will need 400w RMS @ 4ohm. Power ratings on amps go up as you decrease the resistance, so you will need a bigger amp than if you were running 400w RMS @ 2ohm.
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I think you have that a bit backwards. At a lower resistance the same amp will create more power. As an example my sub amp provides 220w RMS at 4ohms, but 400w RMS at 2 ohms. You want to wire the sub for the lowest resistance in ohms that your amp is stable to. Some only go down to 4 ohms, but most car audio amps are stable down to 2 ohms. If you hook an amp only stable down to 4 ohms to a 2 ohm load, it will either destroy itself or shut off in self protect.
