Question about Lanzar VIBE286 Car Audio Amplifier

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Fuses I cant turn my stereo up to loud with this amp without the fuses blowing out is there anything that i can do to stop this ?

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Re: Fuses

Hi, when the fuses blow it can only mean that the current the passed thru it is greater than its rating. It is possible that the fuses installed has a lower rating than is required by your amp. To check look over the specs of your amp and determine the proper amperage (amp) rating. Specs may be found on a sticker at the bottom or side of the amp and may look something like 12V-20A meaning 12 volts 20 amperes. In the absence, you may want to check the box and/or the instructional manual that came with it ot go to the manufacturer's website to checkout the specs. If you are referring to the fuse serving all your amps, players, receivers, etc, then you have to addup all their individual A rating and get a fuse whose rating is equal to the addedup value. Although this is not a sound practice and individual fusing is preferable. If the amp rating is equal to the fuse rating but it still blows, then you may want to have your amp checked. Trying to install a higher rating will most likely prevent fuses blowing and present itself as a temporary solution but the real problem is not solved and may be aggravated. Hope this be of some help and good luck.

Posted on Apr 22, 2007

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No power

For what amp, a Home stereo amp or a car stereo amp? Most car amps will not have internal fuses, but home stereo amps do have internal fuses. You will notice on car audio amps fuses are always plugged into the side of the amps or they have an inline fuse that is on the main power wire into it.
You have more than likely blown a Mosfet Power Transistor, very common in car amps, I'm fixing 3 of them right now with that problem. Class "D" Amps seem to have this problem on a regular basis and they are hard to get working again once they blow. You won't even see any evidence of the bad parts inside the amp either, old amps will fill your car with thick smoke and will have obvious damaged parts. Best bet is you will be looking at buying a new amp unless you paid over $500 dollars for it, it's not worth fixing, check the warranty to have it replaced by the manufacturer.

Apr 02, 2013 | Car Amplifiers

1 Answer

It keeps blowing a fuse

Generally, if you are using the manufactures fuse rating you can use a slightly higher rating and it will resolve the blowing fuses. Fuses supply resistance, if there isn't enough resistance you'll fry the system board in the amplifier. But if you have 25 amp fuses installed, install 30 amp, if you have 30 install 35 amp, 35 install 40. Anything higher will damage the amp.

Hope this helps.

A rare chance, something may be internally wrong with the amp and shorting it out which will blow the fuse.

Use the incorrect wiring of subs to the amp, you'll blow fuses and damage the amp from it turning off consistently. The amp should be running at 2 ohm stereo stable or 4 ohm mono stable.

Very few amps are designed to run at 1 ohm or less. Not to mention the subs can't handle it.

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1 Answer

Car audio amplifer blowing fuses

why are you in stereo for subs? mono all the way.

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1 Answer

Blows the 30 amp fuses

yes you have a internal fault of the amp. the circuit that puts it into safe mode is bad and that is a very small chip on the board know as a op amp. needs to be repaired.

Feb 03, 2010 | Kenwood KAC-9102D Car Audio Amplifier

1 Answer

Power surge blowing fuses on amp when car is turned on.

the voltage regulator in the alternator or the capacitor is malfunctioning. get a multimeter on the battery when u start the car (before the capacitor) if it reads a large surge (something greater than 14 or 15 volts) then u may need a new amp, if not, then test it on the back end of capacitor to the chassie negative, see if u detect spike there.

Nov 26, 2008 | Car Amplifiers

1 Answer

Keep Blowing Fuses

Sounds like the amp is shorting somehow. You are obviously shorting out somewhere between the battery and the amp. Are you sure you grounding location is a good one? is the fuse blowing only when you turn the stereo on? Something is not hooked up correctly.

If the fuse at the battery is blowing then it's a short.

If the fuse on the amp is blowing then its probably a bad amp.

Jun 12, 2008 | Kenwood KAC-728S Car Audio Amplifier

1 Answer

I just purchased and had installed an alpine pdx-1.1000 amp. powering 2 12" jbl's. while the owner was demonstrating this to me, we had it going loud, and it blew its 4 fuses. once he replaced the fuses,...

Technically, the manual says the amp should have 20A fuses, so by putting 25A fuses in, you've allowed more current to get to the amp before the fuses blow than recommended. I'd be more concerned about why the amp is blowing fuses.

If the subs are single 4 ohm voice coils and wired in parallel, you're fine. If they're dual 4 ohm voice coils, and everything (subs and voice coils) are in parallel, you're putting a 1 ohm load on the amp, which it's not rated for.

Mar 17, 2008 | Alpine PDX-1.1000 1000W x 1 Car Amplifier...

1 Answer

Amp blowing fuses

The amplifier probably has shorted output transistors.

Disconnect the speakers and RCA cables. Replace the fuses with two 10 amp fuses or a single 20 amp fuse. If the amp blows the fuse when it powers up, the outputs are almost certainly the problem. Don't try it with the two 30 amp fuses. The smaller fuses will provide more protection for the power supply. If the amp powers up with the smaller fuses and they don't blow, check the speakers and the wiring (for shorts to ground or shorts between wires).

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2 Answers

Blowing fuses

Here are some answers:

1. Make sure your amp does not have a higher amp rating then the fuse, For example, an 18 amp amplifier will blow an 15 amp fuse, so connect it to a 20 amp fuse

2. you have a connection issue, where something is shorting out

3. you are pushing the amp or car to it's limit with how loud you put it, and thus blowing it, fixed by getting a more powerful amp and a better fuse.

4. or there is something very wrong and cannot help you and you would have to bring it into a shop.

Nov 18, 2007 | Car Amplifiers

2 Answers

What eq settings do i need

Hello ed4037, If you are blowing fuses this means that you are drawing too much current check your impedance value on your amplifier it should be 8 ohms to match the subwoofer's 8 ohms of impedance. In addition make sure that you have the proper value fuses. In other words you should not be tuning the amp not to blow fuses, because you should be able to go to full amplitude on your amp without blowing anything. As I alluded to this sounds like an impedance mismatch problem. I hope this helps, Thank you, Shuttle83

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