hi all, only recently has my amp and sub been cutting out when i play my music loud, when its cut out if i turn my cd player off, then back on, then the sub and amp start playing again, why does it cut out to start with?, o and ive noticed my amp has been getting quite hot!
More than likely amp is Overheating. Most amps have an internal fan to cool them that may have stopped working. You should either mount it in anarea that will keep it cool or look and see if it has an internal fan and whether that is running. SOme amps even have temp displays on em so you know if it is alright.
First, you need to find EXACTLY what is causing the amp to shut off. Here's the easy way. Run the setup until your speakers stop playing, then immediately turn down the volume on the head unit, but do not shut the unit off. If the amp comes back on after a few minutes of cooling off, then you have an overheating problem. If it does not, then you may be tripping the amplifier's protection circuit, which means you may be overloading the amplifier. When you turn the HU off, you are also telling the amplifier to turn off, which may be resetting the protection circuit and allowing the setup to attempt to play again when the HU is powered back up.
If you do find that your amp is overheating and you don't have it in an area that is well-ventilated, you can install a fan to cool the amp. You can get a 80-120mm PC fan for a few bucks at Radio Shack, Fry Electronics, etc., and wire its power to the Remote wire, and its ground to the amp's ground. Keep the fan blowing across the cooling fins of the amp for maximum cooling efficiency, rather than straight down onto the amp.
If you find that you are overloading the amplifier, then you probably are running the setup at an impedance that is too low for the amplifier to handle. The only two ways to resolve this issue are rewiring to a more suitable load, or replace the amplifier with a unit that can handle the low impedance.
True knowledge exists in knowing that you know nothing. True wisdom comes to each of us when we realize how little we understand about life, ourselves, and the world around us.
-Socrates
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