Amp gets hot need help

[mindless_soul 10+ year member]

I'm trying to figure out why my amplifier gets so hot after being on for like 30 mins. I have a Planet Audio AC5000.1D hooked up to a 15 inch 4 ohm Rockford Fosegate P3. I know the amp isn't really 5000 watts but it should be enough to push a 1000/500 rms p3 15 with no problem. I'm using 4 gauge wire and have the amp on a 2 ohm load, and I have the gain around 25% up n bass boost about 15% up. So does anyone know why the amp gets hot after like 30 mins?? and one more thing how big of a fuse should I be using for this amp? cause right now I have a 100 amp fuse hooked up.

Click to read more...

 

[KyleBechtold 5,000+ posts]

airflow?

also some amps notoriously run hot..

 

[kingmanbc 10+ year member]

get a little fan to run on it

 

[mindless_soul 10+ year member]

well the amp is located in the trunk so i don't think its the air flow, but maybe it could be the ground connection?? the ground wire is around 2 feet long, n i have it connected to this black bar connected to my car in the trunk could it be that? or is this type of amp known to get hot like this

 

[KyleBechtold 5,000+ posts]

some amps are completely sealed up with no vents and rely strictly on their heat sinks and they get REALLY hot.. might be your issue.. Had a few oldschool rockfords you couldn't touch but they would run fine...

 

[mindless_soul 10+ year member]

ahhh ok it makes sense, so if it dont go into protect mode or cut off its fine?

 

[mindless_soul 10+ year member]

and one more thing does anyone know how big of a fuse im suppose to use for this amp??

 

[KyleBechtold 5,000+ posts]

honestly I would set it with a dmm and turn the boost off and see if that helped..

As for it being fine idk how long it will last.. I had that rockford for a year running like that and it was still fine.. I still have it just not hooked up in my daily..

where is it mounted and how is it mounted..

 

[mindless_soul 10+ year member]

well it just sitting in the trunk floor behind the speaker box, there is lots of space for the amp, well i do have an equalizer n cross over hooked up to the amp, i just use them to increase the signal for i dont have to turn the gain so high ect.

 

[NoPh33rRaCiNg 10+ year member]

turn off the bassboost

 

[keep_hope_alive Premium Member]

hopefully it's screwed down to the floor (not into the spare tire //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif ) and not just sitting on the floor loose. car audio equipment should be secured to the vehicle, boxes secured with L-brackets.

all amps get hot. if you want to improve the longevity - add a fan or two.

 

[Louisiana_CRX 5,000+ posts]

you can always reduct your AC unit to blow on the amp to help cool it....it keeps one cooler than any fan