My 2000w TNT amp blows fuses as sooooon as I put a fuse in. What is the problem with the amp. is it internal external? I also checked my wires and they all look good

There could be so many things wrong with it, but personally I find the most likely problem is the power supply.

If the fuses are blown and new fuses also blow then there is an internal fault which requires repair before the amp can be used.
If by straight wiring you mean by,passing by shorting out with wire
and there is an internal short then you can do irreparable damage to your amp or even cause a fire..

It is best to have the amp checked

Len...

It's worth noting here that it's more about the physical size & shape of the Fuse thats needed to fit your Fan.
You don't have to use exactly a 5 amp @ 125v fuse.
Any fuse that Fits and is in the range of 5,6,7,8,10 Amp and even 230v is ok.
The fuse is like a piece of soft metal that will melt if too much current is being drawn by the device. The Amps & Volts only define approximately when the fuse link will melt (blow). But as the fan gets dirty and older the LOAD it draws might get slightly higher. Enough to cause the fuse to slowly melt. So a small to 6, 8, or 10 Amp should work just fine. A wiring short will still cause the 10 Amp fuse to blow thereby keeping things safe. The manufacturer uses a fuse that fits in the space he has allocated & allows the unit to run continuously without blowing on a slight load.
But it is only a safety device to protect the device from internal shorts.
It stops a shorted motor or shorted internal wiring from getting too hot and possibly causing a fire.
But a 20 or 30Amp fuse would still blow if it is shorted.
For example...If the 5 A fuse keeps blowing then you could try say an 8 or 10 Amp fuse. If that blows then their is definitely a problem with the circuit. Don't put anything larger than 10 Amp in.
It then needs to be looked at by a service technician.


The voltage rating on a household fuse isn't that critical.
It's actually the wattage it takes to melt the fuse link. It's based on the mathematics of Ohms Law (Watts =Volts x Amps)
But thats another story....
Cheers
Trevor

your either overloading something cause that's what pops fuses. My guess is that what your plugging in or into has a ground issue. I'm wondering if it does it with nothing plugged in at all. I would say if you have nothing in and it does it, you need to find where the ground issue is. that's my best guess

Very unlikely, sounds like it's faulty. Was this on plugging in or were you using the amp, and if so doing what? What is your supply oltage?

The fuse keeps blowing because there is a dead short after it somewhere. Check the wiring for shorts up to what it gives power to disconnect it and see if the fuse still blows . If not then replace the item that it is connected to as it has an internal short.

If the fuse is correct ( check manual) it shouldn't blow under normal operation. Once in while a fuse will break internally and thus blow the fuse. look close at the blown fuse If it is a "violent" blow (totally black inside) then you have an overload condition. I would use an ohm meter to check the connection to the speakers. Usually it should be between 8 ohms and 4 ohms if the number is lower than 4 ohms your speakers or wiring are putting to much of a load on the amp. If the fuse was not a "violent" blown fuse then replace with a new fuse of the exact proper value. many amps use an MDL fuse that is a slow blow fuse and has much different in circuit function than a ACG fuse so use only the exact proper furse that the manufacture recomends. If the load (speaker and wiring) is correct and the fuse is correct and still blows then you have a component problem and the amp will need repair

Are the globes you are using internally the correct rating ? Normally a short will blow the fuse immediately.

Also are you sure the 10A fuse is the correct AMP rating ?

Doulbe check both these with either your owners manual or a Lexus dealer.

If both these are correct you will either need to trace, test and check the related wiring yourself using a standard voltmeter (from fuse contact in the fuse box to the globe contact). Check for stable currency and AMP readings. Note the AMP readings for the answer to the above questions.
Auto electric are generally a nightmare, with all the various colour coded wires running inside wire harnesses, making them difficult to trace with out a full wiring diagram for the vehicle
have an auto electrician check it out for you

25 to 30 amp fuses will work great, anything lower could possibly blow a fuse when a good bass note hits even if there is nothing wrong with the amp. Hope this helps.

The fuses are there to protect the internals of the AMP.....
Please check that the correct fuses are installed......
if the incorrect ones are installed then a fire may develope...

There should be a manufacturers lable on the external chassis that details the fuses to use....

Fuses now days can be slow blow or fast blow....so the correct fuses must be used.....dont increase the fuse rating past the chassis panel label...but make sure they are correct...if they are correct then the amp needs a service to determine where the peak loadings to the power supply are originating from...

Some one may have installed incorrect fuses in the past...

Cheers from YUBEUT