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First of all, what size fuse? Check the amp and see what max amperage is, and insure your fuse is that size. Secondly, I suspect either a blown speaker or blown outputs. Disconnect the speakers from the amp and see if the fuse still blows. If it does, either you are hooking two wires up improperly, or your outputs are toast.
If you bridge the amp and get 1000 watts RMS and that is split going to two speakers then you will get 500 watts RMS at each speaker. If you have your amplifier on maximum gain it may blow your speakers, not because they are overpowered but because you might run into "clipping" issues running the amp at maximum capacity. Just to be safe I would dial the amp's gain down to 3/4 of the way to full gain. That should give you ample power and keep your amp from clipping and running hot.
I don,t no where you are reading thease articles from,I installed car audio equipment for over 40 years, Untill i retired a couple of months ago, Who ever is writeing those sort of articles does not have the slightest clue what they are talking about, It is the opposite way around, It is allway better for yor (Speakers) To handle more power then what your amp puts out, Then you will not blow the spaekers, It is best to get speakers at least 20 watts more then what your amps maximuin (RMS) Watts are, Hope this helps you out, (PS) 50 watts (RMS) Is what most people go for, It is in no means (Under) Powered.
YOU ARE PROBABL;Y RUNNING THE AMPLIFIER INTO CLIPPING, WHICH IS A DANGEROUS OVERLOAD CONDITION THAT REALLY TENDS TO HEAT UP THE VOICE-COILS OF THE SPEAKER. IT IS QUITE POSSIBLE TO BURN A 1000 WATT SPEAKER WITH A SMALL 500 WATT AMPLIFIER IF IT IS ALLOWED TO RUN INTO SEVERE CLIPPING. YOU MUST LEARN TO UNDERSTAND WHEN THIS OCCURS BY CAREFULLY LISTENING TO THE MUSIC AND TONES AND RECOGNIZE THE NASTY SOUND OF CLIPPING THE AMPLIFIER. THERE IS SIMPLY NO SAFE WAY, AT THESE POWER LEVELS, TO SIMPLY TURN THE GAIN UP AND THROW THE RADIO INTO FULL THROTTLE. WHILE IT WILL SOUND AS IF THIS OFFERS THE HIGHEST VOLUME, IT IS NASTY AND THE SPEAKER WILL NEVER ACCEPT THIS CONDITION WITHOUT EVENTUALLY FAILING. THIS APPLIES TO ALL AMPLIFIER/SPEAKER SETUPS. LET ME KNOW IF I CAN BE OF FURTHER ASSISTANCE.....V
Generally, this indicates that there's at least one shorted output transistor.
Disconnect all speaker wires from the 'amplifier's speaker terminals' and disconnect RCA/signal cables from the amp. If it powers up normally, the speakers/wiring need to be checked. If it still blows the fuses, the amp almost certainly has shorted output transistors and will need to be repaired.
I'd recommend using two 10 amp fuses. The amp will power up with 10 amp fuses if there is no problem. If there is a problem, there's less of a chance of doing more damage by using the 10 amp fuses.
In this case the output transistors are probably shorted. With the unit unplugged, check the pins of the output transistors (center to either outside pin) and if they read shorted, they need to be replaced. It is possible that the previous stage will also have shorted components. If you have no experience with this type of repair, see a service shop. The parts should not exceed $25.
Your amp is blowing fuses to protect your circuit. The type of 12V battery does not matter. For whatever reason you are over driving the amp. 2 Ohms sounds like a very low impedance for a car amplifier output. I am assuming you have the two 12" speakers wired in parallel. Most are rated at 4 Ohms which means you are pulling twice the current with the 2 Ohm load. Also, the bigger the speaker, the bigger the magnet, the bigger the coil, the larger the inductance, the heavier the load. Make sure these speakers are matched with your amp. A small amp driving large speakers will shut down at high volumes. Try putting them in different channels. Good Luck.
well depending on the wattage of the speakers your trying to hook up to the amp if they exeed the maximum wattage then theres a chance u *could* blow a fuse nothing more then that, a fuse protects more expsinsive devices in ur amp, an if ur system keeps blowing fuses after doing that add up the watts 2 all ur speakers,
and remove the less needed
Hope you find this usfull
This almost always indicates a blown speaker. If you have an ohm meter you can use that to test the impedance on your speakers. After disconnecting the speaker - touch the red lead to one connector and the black lead to the other. If it reads something other than 8ohms that speaker is blown. If you don't have an ohm meter you can simply disconnect one speaker at a time and run that way until the fuse blows. If the fuse never blows then you've found the suspect speaker. Sometimes blown speaker can hide by stealth. When cold everything is normal. When things start to heat up from use the failed circuit shorts and blows the fuse on your amp.
Are you paying attention to the match between the subwoofer's peak power rating and the amplifier output?
An amplifier capable of 100 watts peak driving a speaker with a 50 watt rating is a sure way to death for the speaker.