amp gets really hot? - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 07-16-2009
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amp gets really hot?

i just put in my system a while ago and i noticed the amp is getting really hot its a 500 rms watt amp hooked up to a 400 rms sub and running 6 ga power wire i have it sitting on the floor right now so it can kinda breath

is there a prob with the way i hooked it up or it just gets hot?
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Old 07-16-2009
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mine gets warm too lol i thinks that just how amps are
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Old 07-16-2009
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mine get pretty warm. not burn your hand hot but on the warm side.
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Old 07-16-2009
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yea i know amps get warm but this is actually hot
i was thinkin about puttin a fan out of a computer on it and wire it in with the remote power wire has anyone done this b4
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Old 07-16-2009
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Well do you have the gain on the amp up and the bass on the headunit up? They will get pretty hot when work the hell out of them.
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Old 07-16-2009
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It will get warm. However if it gets too hot it will shut itself off. I would runner thicker gage wire than 6. Atleast 4 gage, could help. It also depends on how its wired, whether its a 1 ohm, 2ohm, or 4ohm, single or dual voice coil. Some other guys on here can be more help Im sure.
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Old 07-16-2009
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i have the bass half way and the gain right in the middle as well i dont want to put it up all the way till its broken in
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Old 07-16-2009
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well the power wires say 4ga but look more like 6ga and its a DVC 4ohm wired at 2 ohms to the amp
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Old 07-16-2009
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Is the amp capable of running at 2 ohms?
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Old 07-16-2009
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Quote:
Originally Posted by whippersnapper02 View Post
Is the amp capable of running at 2 ohms?
It should blow fuses if it's not.
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Old 07-16-2009
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yea its 2 ohm capable i thought maybe i was running to big of power wires but idk
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Old 07-16-2009
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Too big of a wire wouldn't cause it to run hot. Even with the small wire the amp will only take what it needs. Maybe its just a hot running amp.
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Old 07-16-2009
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mine gets hot to but i run the hell out of it
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Old 07-16-2009
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Quote:
Originally Posted by whippersnapper02 View Post
Maybe its just a hot running amp.
x2


my friends Sony 1000watt seems like it could cook an egg compared to my alpines
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Old 07-16-2009
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What brand? It might just be an inefficient model that makes heat better than it boosts music.
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Old 07-16-2009
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Is it a class d amp? If it's not it will run 'hot'. My kenwood amp used to run pretty warm, almost hot to touch.
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Old 07-16-2009
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I have a sundown 1200 that I just put in and it doesn't get hot at all. It has vents on the bottom that I had to space it off the back wall. You could be over working the amp, I would run a min of 4ga for the power/ground and make sure all your connections/ground are clean. If your running your amp at low load also it will run hot.

The purpose of the gain is to match the signal volts RMS coming from the source (CD player, etc.) to the input of the amp for correct power matching and to prevent clipping....
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Old 07-17-2009
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its a kenwood monoblock amp 1000 watt
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Old 07-17-2009
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has anyone tried to hook a fan up to it and have it come on when the amp comes on? if so please explain i think ima try that
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Old 07-17-2009
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Quote:
Originally Posted by 01 ranger 4x4 View Post
has anyone tried to hook a fan up to it and have it come on when the amp comes on? if so please explain i think ima try that
Nice idea as long as the fan is not drawing power off of the remote line. If power was just tapped from the positive and negative terminals of the amp and a relay was used to turn the fan on only when powered up, then that would be fine. I doubt it will help much. Pictures of you amp? Might help to take the cover off, unless it acts as a heat sink and pulls heat away, then not a good idea to remove it.
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Old 07-17-2009
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Old 07-19-2009
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fans are used alot for hot amps.
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  #23  
Old 07-31-2009
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i have 3 amps in my truck one too each sub one for speaker my two sub amps get very hot too. it would be hard too hold your hand on it for over 10 seconds my installer said its just the way they work
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  #24  
Old 07-31-2009
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i doubt you need a fan, you probably dropped the ohms too low. check how you have you subs wired. are they bridged? they may be lower than you think.
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  #25  
Old 08-03-2009
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My Kicker ZX300.1 was getting super hot about halfway threw the breakin period, come to find out we had the sub setting on the head unit set to like 8 and the amp would start to smell if i played it very hard for a long period of time. After we turned the head unit down to 6 it stopped getting as hot and stopped smelling. I also have the bass **** on mine and can play it at any level and not have any problems with the amp getting very hot . so You might try turning the head unit down one or two clicks.
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