Question about Legacy Audio American Legacy II LA490 Car Audio Amplifier

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What size fuse do i need for amp

I have an american legacy la490 amp. it is a 600 watt amp and i need to know what size fuse it takes. thank you.

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Start with a 50, may need to increase it if you are not using a large capacitor.
600 watts = 12x
x= 600 watts / 12 volts
x = 50 amps

Posted on Dec 13, 2007


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Optimum sound performance needed

1) legacy products are highly overrated and i have never seen one put out the power it claims
2) if you are running the amp bridged, you need to match the impedance of the speakers to the amps highest output impedance, otherwise your system will not sound all that great...

what size fuse or fuses does your amp use? what size wire did you install with (power and ground)? did you connect direct to battery or did you connect to a fuse block or similar? did you use a stiffening capacitor? does it sound like it is clipping when you turn it up or is it just distorted? what kind of box are you using for the speakers (ported, vented, sealed, bandpass)?

if you give me the model number of your speakers and your amplifier i can probably help you more, but with the information you have provided, this is all i can offer..

hope it helps,

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Do you actually see a fuse in it? If there is a fuse it should typically say on it what the rating is.

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