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So if it's just to protect the wire on the amp run why does the amp manufacturer recommend a fuse size?

Explain why amps for years and some still do had fuses built into them?

You know the right people to ask so have them come explain how a fuse only protects the wire.

If you notice fuses built on Amps are usually only on smaller amps. A fuse recommendation is given still for amps with fuses on board. The external fuses are to protect wire the on board fuses are to protect amps internals in case of a short. Larger amps have enough components to handle a surge or current before the fuse that's on the wire breaks. Since the manufacturer knows if current is that high the wire would go first before amp would if it was on.

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I'm not just talking about the main fuse and people around here tell others all the time even their amp runs the fuse is just to protect the wire which is false.

I'm well aware that there is multiple fuses in the vehicle I'm not a moron.

If you're throwing a 300 or 350amp fuse on your 1/0 because that's it's current carrying capability and you aren't actually drawing that much current you're right you aren't protecting anything but if you fused appropriately yes you are.

the amp run's fuse IS to protect the wire though. That is why you put it by the battery and not by the amp.

If you are throwing a 300 amp ANL fuse on a wire but only drawing 50 amps from it with a small system, YES you are STILL PROTECTING THE WIRE, and the car. How many amps do you think a direct short draws?

but wouldn't you also want to fuse to protect the amp? If an amplifier normally draws ~50 amps and something goes wrong one day and it starts pulling ~90 amps and you have a 300a fuse on the wire to protect the wire, then it's not going to blow. The amp could sit there and be drawing too much current until it smokes and the fuse wouldn't blow.

The only way an amp will draw more than intended is if a transistor shorts. Or somehow the rails short. Other than that an amp can't draw more than the components inside allow unless it's already broken which a fuse won't help anyway

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My SPL Log: http://www.stevemead...__fromsearch__1

BMW M340 xDrive

Stock, for now. Corner Load 10" maybe soon. But does 10s in the 1/4...
Best Scores out of a trunk
153.0 sealed legal full tilt clamped 5524 @ 42 hz
154+ windows down, 155+ kick

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I'm not just talking about the main fuse and people around here tell others all the time even their amp runs the fuse is just to protect the wire which is false.

I'm well aware that there is multiple fuses in the vehicle I'm not a moron.

If you're throwing a 300 or 350amp fuse on your 1/0 because that's it's current carrying capability and you aren't actually drawing that much current you're right you aren't protecting anything but if you fused appropriately yes you are.

the amp run's fuse IS to protect the wire though. That is why you put it by the battery and not by the amp.

If you are throwing a 300 amp ANL fuse on a wire but only drawing 50 amps from it with a small system, YES you are STILL PROTECTING THE WIRE, and the car. How many amps do you think a direct short draws?

but wouldn't you also want to fuse to protect the amp? If an amplifier normally draws ~50 amps and something goes wrong one day and it starts pulling ~90 amps and you have a 300a fuse on the wire to protect the wire, then it's not going to blow. The amp could sit there and be drawing too much current until it smokes and the fuse wouldn't blow.

The only way an amp will draw more than intended is if a transistor shorts. Or somehow the rails short. Other than that an amp can't draw more than the components inside allow unless it's already broken which a fuse won't help anyway

I know there's a lot of "If's" in my question, but if it does break and starts drawing too much then the fuse could blow and cut the power before it catches fire. Again, there's a whole lot of if's in that, but it's just a thought

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So if it's just to protect the wire on the amp run why does the amp manufacturer recommend a fuse size?

Explain why amps for years and some still do had fuses built into them?

You know the right people to ask so have them come explain how a fuse only protects the wire.

because you need a LARGE enough fuse to carry the current the amp requires and not to blow it every time you turn the bass on. That is why. DUHHH.

to answer your question about the onboard amp fuses....well that was my entire point about the headlights, wipers etc. They all have fuses too. The onboard fuses in car audio equipment is usually on smaller stuff. They are it's own little "fuse box" but ultimately, the large wire that feeds it has it's own fuse that is protecting that wire that is feeding that amp. If your amp pops it's onboard fuse, it's not coming back. They almost never do. So the fuse up front nor the fuse in the back (on the amp) is protecting anything in the end EXCEPT the car.


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So if it's just to protect the wire on the amp run why does the amp manufacturer recommend a fuse size?

Explain why amps for years and some still do had fuses built into them?

You know the right people to ask so have them come explain how a fuse only protects the wire.

If you notice fuses built on Amps are usually only on smaller amps. A fuse recommendation is given still for amps with fuses on board. The external fuses are to protect wire the on board fuses are to protect amps internals in case of a short. Larger amps have enough components to handle a surge or current before the fuse that's on the wire breaks. Since the manufacturer knows if current is that high the wire would go first before amp would if it was on.

So how many amps do you see go up in smoke without the fuse blowing?

I've seen a more than a few(not my own).

That being said a lot of people's definition of "music" is a clipped 30 hz sine wave with some 80 IQ knuckle head grunting about committing crimes and his genitals.

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So if it's just to protect the wire on the amp run why does the amp manufacturer recommend a fuse size?

Explain why amps for years and some still do had fuses built into them?

You know the right people to ask so have them come explain how a fuse only protects the wire.

If you notice fuses built on Amps are usually only on smaller amps. A fuse recommendation is given still for amps with fuses on board. The external fuses are to protect wire the on board fuses are to protect amps internals in case of a short. Larger amps have enough components to handle a surge or current before the fuse that's on the wire breaks. Since the manufacturer knows if current is that high the wire would go first before amp would if it was on.
So how many amps do you see go up in smoke without the fuse blowing?

I've seen a more than a few(not my own).

They go up in smoke because more than likely the transistors smoke aka fets. Or another part fails usually due to lack of current at the inputs. Lol. Won't blow fuse if not enough current. Sure as voltage dips current increases but there is only so much before something gives.

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MB C280 Ipad Dash SQ Build Log: http://www.stevemeadedesigns.com/board/topic/194484-bump4lifes-new-benz-tony-c-relay-kit-pictures-ce-electric-audison-front-stage-installed/
My SPL Log: http://www.stevemead...__fromsearch__1

BMW M340 xDrive

Stock, for now. Corner Load 10" maybe soon. But does 10s in the 1/4...
Best Scores out of a trunk
153.0 sealed legal full tilt clamped 5524 @ 42 hz
154+ windows down, 155+ kick

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So if it's just to protect the wire on the amp run why does the amp manufacturer recommend a fuse size?

Explain why amps for years and some still do had fuses built into them?

You know the right people to ask so have them come explain how a fuse only protects the wire.

because you need a LARGE enough fuse to carry the current the amp requires and not to blow it every time you turn the bass on. That is why. DUHHH.

Yeah and most times the actual current demand on music is less than the recommended fuse size and on top of that the fuses are know to pass ore current than they are rated for for periods of time.

My t1500bcd reccomended a 200 amp fuse, I never saw that much current demand and I had the alt and battery power to supply it.

So why should I fuse at 200 or 300 if the wire can handle it if my current demand was only around 100 amps on music?

That being said a lot of people's definition of "music" is a clipped 30 hz sine wave with some 80 IQ knuckle head grunting about committing crimes and his genitals.

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I'm not just talking about the main fuse and people around here tell others all the time even their amp runs the fuse is just to protect the wire which is false.

I'm well aware that there is multiple fuses in the vehicle I'm not a moron.

If you're throwing a 300 or 350amp fuse on your 1/0 because that's it's current carrying capability and you aren't actually drawing that much current you're right you aren't protecting anything but if you fused appropriately yes you are.

the amp run's fuse IS to protect the wire though. That is why you put it by the battery and not by the amp.

If you are throwing a 300 amp ANL fuse on a wire but only drawing 50 amps from it with a small system, YES you are STILL PROTECTING THE WIRE, and the car. How many amps do you think a direct short draws?

but wouldn't you also want to fuse to protect the amp? If an amplifier normally draws ~50 amps and something goes wrong one day and it starts pulling ~90 amps and you have a 300a fuse on the wire to protect the wire, then it's not going to blow. The amp could sit there and be drawing too much current until it smokes and the fuse wouldn't blow.
The only way an amp will draw more than intended is if a transistor shorts. Or somehow the rails short. Other than that an amp can't draw more than the components inside allow unless it's already broken which a fuse won't help anyway

I know there's a lot of "If's" in my question, but if it does break and starts drawing too much then the fuse could blow and cut the power before it catches fire. Again, there's a whole lot of if's in that, but it's just a thought

Yes a fuse would protect wire from a shorted fet in a amp. That's why hey tell you to fuse amps. Cause a short in amp would try to draw too much through the wire. Thus fuse protects wire and car after amp is toast.

Buyer/Seller Feedback Thread: http://www.stevemead...5015-bump4life/
MB C220 153 Trunk Car Build Log: http://www.stevemead...d/#entry1840136
MB C280 Ipad Dash SQ Build Log: http://www.stevemeadedesigns.com/board/topic/194484-bump4lifes-new-benz-tony-c-relay-kit-pictures-ce-electric-audison-front-stage-installed/
My SPL Log: http://www.stevemead...__fromsearch__1

BMW M340 xDrive

Stock, for now. Corner Load 10" maybe soon. But does 10s in the 1/4...
Best Scores out of a trunk
153.0 sealed legal full tilt clamped 5524 @ 42 hz
154+ windows down, 155+ kick

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Share on other sites

I'm not just talking about the main fuse and people around here tell others all the time even their amp runs the fuse is just to protect the wire which is false.

I'm well aware that there is multiple fuses in the vehicle I'm not a moron.

If you're throwing a 300 or 350amp fuse on your 1/0 because that's it's current carrying capability and you aren't actually drawing that much current you're right you aren't protecting anything but if you fused appropriately yes you are.

the amp run's fuse IS to protect the wire though. That is why you put it by the battery and not by the amp.

If you are throwing a 300 amp ANL fuse on a wire but only drawing 50 amps from it with a small system, YES you are STILL PROTECTING THE WIRE, and the car. How many amps do you think a direct short draws?

but wouldn't you also want to fuse to protect the amp? If an amplifier normally draws ~50 amps and something goes wrong one day and it starts pulling ~90 amps and you have a 300a fuse on the wire to protect the wire, then it's not going to blow. The amp could sit there and be drawing too much current until it smokes and the fuse wouldn't blow.
The only way an amp will draw more than intended is if a transistor shorts. Or somehow the rails short. Other than that an amp can't draw more than the components inside allow unless it's already broken which a fuse won't help anyway

I know there's a lot of "If's" in my question, but if it does break and starts drawing too much then the fuse could blow and cut the power before it catches fire. Again, there's a whole lot of if's in that, but it's just a thought

Yes a fuse would protect wire from a shorted fet in a amp. That's why hey tell you to fuse amps. Cause a short in amp would try to draw too much through the wire. Thus fuse protects wire and car after amp is toast.

Buyer/Seller Feedback Thread: http://www.stevemead...5015-bump4life/
MB C220 153 Trunk Car Build Log: http://www.stevemead...d/#entry1840136
MB C280 Ipad Dash SQ Build Log: http://www.stevemeadedesigns.com/board/topic/194484-bump4lifes-new-benz-tony-c-relay-kit-pictures-ce-electric-audison-front-stage-installed/
My SPL Log: http://www.stevemead...__fromsearch__1

BMW M340 xDrive

Stock, for now. Corner Load 10" maybe soon. But does 10s in the 1/4...
Best Scores out of a trunk
153.0 sealed legal full tilt clamped 5524 @ 42 hz
154+ windows down, 155+ kick

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So if it's just to protect the wire on the amp run why does the amp manufacturer recommend a fuse size?

Explain why amps for years and some still do had fuses built into them?

You know the right people to ask so have them come explain how a fuse only protects the wire.

If you notice fuses built on Amps are usually only on smaller amps. A fuse recommendation is given still for amps with fuses on board. The external fuses are to protect wire the on board fuses are to protect amps internals in case of a short. Larger amps have enough components to handle a surge or current before the fuse that's on the wire breaks. Since the manufacturer knows if current is that high the wire would go first before amp would if it was on.
So how many amps do you see go up in smoke without the fuse blowing?

I've seen a more than a few(not my own).

They go up in smoke because more than likely the transistors smoke aka fets. Or another part fails usually due to lack of current at the inputs. Lol. Won't blow fuse if not enough current. Sure as voltage dips current increases but there is only so much before something gives.

Most people are using way to big of a fuse too, just sayin.

That being said a lot of people's definition of "music" is a clipped 30 hz sine wave with some 80 IQ knuckle head grunting about committing crimes and his genitals.

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