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amp fusing help


Jared420

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Posted

I just sent a paypal payment for a clif designs CD4800.1 The amps rated at 13 volts for over 3500rms at 2 ohms, and 4800 at 1 ohm, I forget right now but its rated a bit over 5000rms at .5 ohms. I am switching over from 2 aq 1200s strapped but each of those has a 120amp fuse rating on the amp so I have 120a fuses between my rear battery and the amps as well but the clif design says the current draw is 220amps @2ohm which I am going to start off with but when I get a chance to rewire my subs I am going to try it out at .5 ohms, the amp is listed by clif designs as being stable and warrantied to .5 ohms. On the website it says current draw is 440 amps at 1 ohm so how should I fuse this thing when I wire it at .5? it takes dual runs of 0 gauge ground and power so would a 250a fuse on each run of power be good? or am I way off? what do I do to keep this amp safe?

2012 silverado ext cab ltz

24" kmc rims

AudioQue 2200

Pioneer AppRadio

Alpine mrx f35 4 channel

Bose mids and highs

Iraggi Alt + stock alt in a DC power dual alternator kit

Yellowtop+stock under hood

0 gauge Knu wire

Big 3

4 gauge stinger (4 chan wiring)

3 DC 10'' LVL3 with LVL4 parts

Posted

Or do I even need to fuse both runs to the amp?

2012 silverado ext cab ltz

24" kmc rims

AudioQue 2200

Pioneer AppRadio

Alpine mrx f35 4 channel

Bose mids and highs

Iraggi Alt + stock alt in a DC power dual alternator kit

Yellowtop+stock under hood

0 gauge Knu wire

Big 3

4 gauge stinger (4 chan wiring)

3 DC 10'' LVL3 with LVL4 parts

Posted

I know tons of you guys have huge amps how do you all do it also will I need to upgrade my 250 a fuses between my batteries?

2012 silverado ext cab ltz

24" kmc rims

AudioQue 2200

Pioneer AppRadio

Alpine mrx f35 4 channel

Bose mids and highs

Iraggi Alt + stock alt in a DC power dual alternator kit

Yellowtop+stock under hood

0 gauge Knu wire

Big 3

4 gauge stinger (4 chan wiring)

3 DC 10'' LVL3 with LVL4 parts

Posted

Or do I even need to fuse both runs to the amp?

always fuse it. just from each run to the amp put a 200-250 amp fuse on it. not worth frying your amp on something small. yea 250 amp fuses on both runs will do you fine.

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Posted

Thanks this just shows I have alot to learn doesn't make sense to me if the current draw says over 400 amps I thought a 250 would just blow instantly. Anyone care to tell me how that works?

2012 silverado ext cab ltz

24" kmc rims

AudioQue 2200

Pioneer AppRadio

Alpine mrx f35 4 channel

Bose mids and highs

Iraggi Alt + stock alt in a DC power dual alternator kit

Yellowtop+stock under hood

0 gauge Knu wire

Big 3

4 gauge stinger (4 chan wiring)

3 DC 10'' LVL3 with LVL4 parts

  • 3 months later...
Posted

This amp can run at 17.5 volts. Is it really necessary to fuse this amp? Everytime you splice into the power wire it reduces the current draw.

6 Funky Pup 12's

Posted

better to fuse it and blow a 40 dollar fuse than your amp if anything goes wrong.

Custom Sounds NW takes your ideas and turns them into your reality.

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Two fully loaded fi SSD18's + Soundstream Rubicon RUB1.2500D wired to .5 ohm for 3600 RMS = Bass for your face!

Posted

This amp can run at 17.5 volts. Is it really necessary to fuse this amp? Everytime you splice into the power wire it reduces the current draw.

your point if it can run at 17.5 volts? that is not needed for daily use. if you want to feel safe that your expensive toy wont blow the fuck up when you're beating then fuse the amp.

Posted

having a 250 amp fuse on each run to the amp would be the same as having a single 500 amp fuse (in a perfect world, perhaps)

the current draw is split in half between each run of wire, hence 200 - 250 amp fuses will be fine..

Custom Sounds NW takes your ideas and turns them into your reality.

Custom enclosures, consultations, service and installation of mobile electronics and home theater equipment.

References available!

My FB Page

Two fully loaded fi SSD18's + Soundstream Rubicon RUB1.2500D wired to .5 ohm for 3600 RMS = Bass for your face!

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