My amp will work good for about five min. the led light will always stay green, then my subs will have a cracling sound and then nothing will come out of the amp the subs are perfectly fine. i had them tested but amp doesnt work. if you hit the amp somtimes it will kick back in again and work fine ? how can i fix this
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well... you have to wire the sub correctly to the amplifier to get good sound.. you could be giving it like an 8 ohm load and this will cause the amp to put out barely anything at all.. www.the12volt.com and the subwoofer wiring diagram willl tell you all you need to know...
Hi just double check with multimeter for power if thats all good check your rca leads as they send the sound to amp and check that sub out put is on in cd head unit i know these a dumb things but sometimes its these that snag us hope it helps good luck
i had an amp that did that for a while before frying. its possible that it could be overheating causing it to go into protection mode which can be fixed with a cooling fan or remounting it somewhere else so it can get some air. it needs to be mounted in a way that it will have at least 1/2" clearance under it so it can have plenty of airflow.
the other thing is you may be putting too much of a load on the amp causing it to go to protection mode. check and see how u have the sub wired and if the amp is stable. if u have the sub wired at 2ohm for more power output and the amp is only stable at 4ohm, then the amp will overload and cause the problem your experiencing. thats what happened to my amp. i had it wired for more than it was stable for and it fried
Check the amplifiers fuses. Some amps have speaker fuses that leave the LED on if blown. Check for continuity on the voice coils of both subs. Check for 12 volts on the remote turn on line from your receiver. If all of the above are good, the amp is probably toast.
are you absolutely certain your subs are in good shape? have you put a meter on them and measured the ohms as you depress the cone [causing the cone to move up and down on the pole of the magnet? do the ohms stay constant? go up to infinity[ suggesting an open] or go to zero or close to zero [ suggestting a short] both of these conditions will result in a zero or a very limited output from your amplifier, while still showing a green status light, if or when a full short or open occurs on the subs, a fault led will become lit, and whet that means is that u have fried the outputs....do a bit more testing with your vom....and good luck or try another speaker for testing purposes...
Your Amp is in protect. Disconnect your subs and turn it back on. IF the led goes back to green the you have a blown Sub and it will need to be replaced. If the amp stays in protect even with the subs removed the the amp is toast.