My nitro bmw-486 amp plays but want put out loud sound

Is this an external fuse casing? If it is an external fuse casing then you can easily replace this with a new one and make sure that you install the same ampere rating on your fuse

sounds like you have some wires crossed. check your radio setting and make sure that the subs are only playing bass and no trebble. buy some new rcas

Sounds like there is a powering problem with it. You could check the power cable. If thats not it, sounds like a defective radio.

Disconnect all speaker connections and rca cables. Leave power, ground and remote wires intact. Try turning on again. If you still have a protection light your amp is faulty. Hopefully you have warranty De .A thumbs up would be greatly appreciated if this answer is helpful to you.

head gasket has gone

IF THE RED PROTECTION LIGHT STAYS ON MAINLY MEANS THAT ITS BLOWN, I HAD THE SAME PROBLEM BUT MY PROTECT LICHT DIDNT COME ON, IF U HAVE A WARRNETY ON U CAN USE.

maybe it cannot accomodate too much power running on it...too much current, try another fuse with higher ampere rates

check the rca cables your using they may be bad

look for wires that are touching each other like speaker wires or you may have a blown sub

Generally, this type of amp is relatively simple to repair if you're capable of replacing the blown parts. If you can find the web site for Nitro, you may be able to get a schematic. I couldn't find their site.

What troubleshooting have you done?

What parts are blown?

If you need help troubleshooting, I'd need a photo of the inside of the amplifier.
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