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Question about Boss Riot 2500D Car Audio Amplifier

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Boss 2500d gets hot and trips off and on every 5 mins...

I recently bought a boss 2500d. It performs well during the first half an hour then it trips off, and after five minutes it would come back on or I could I take off the power and put it back on, then it would play for a min and trip off back. During this time the protection light comes on then switches off accordingly. The speaker is new and not faulty and within the stipulated ohms specs the amp is designed for. All connections and wires are new and insulated and well connected including power and ground. Sufficient power is supplied to feed the amp. The amp gets extremely hot when playing at 2, 4 or even 8 ohms at only quarter the gain level and half the head unit, then it trips off. Does it nead a fan or something? What's up with that? It seems as though when the amp is cool it plays continuously. Could it be failing output transistors or a lack of proper contact thereof?

Posted by andy mullet on

  • peter_brown_ Aug 28, 2008

    Hi I have a 5 channel boss amp. After playing it loud for 1 or 2 hours it starts tripping off--then comes back on in like 3-4 minutes. Or I can turn off the unit --then turn it back on & it will work for 2-3 minutes then it trips off again. And it will do this until I turn it off for a while & let it cool down. Then it will play for 1 or 2 hours then start quiting all over again. Can I do anything with that safety switch? Thanks,

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2 Answers

Anonymous

The amp is monoblock so there is no bridging of a single channel to itself.

Posted on Feb 12, 2008

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  • 219 Answers

If you are bridging the amp then you must DOUBLE the "ohms load" that is specified. I.E. If you need 4ohms per channel, then when bridged you would need 8ohms per bridged channel. If your load is indeed correct then you have a fried output probably. Try to run it without any speakers on it. If it still gets hot then you for sure have a fried amp. All the symptoms you decribe sound just like you have too much of an "ohms load" though.

Posted on Aug 01, 2007

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First problem is that if you ever have a problem with anything electronic you dont ignore it going on and off or you dont hit it to get it to start working. Thats a true indicator that something is wrong and/or somethings about to break and take everything with it. When it first started to go on and off You could have made sure that the speaker lines were not loose or touching one another or another big problem like this is the speaker wires and how they are ran thru the vehicle sometimes the vibration will rub off the insulation and /or pinch the wire and short it out agains the chassis of the vehicle. The best way for you to trouble shoot this is to first have someone check the speakers and lines. Make sure the inputs are good and disconnect the output lines(speakers wires) from the amp and put a dc meter on one of the outputsw. And have someone turn o0n the power. If theres any dc there for even a spit sec then the amp has blow output devices and probably also bad drivers and predrivers. At this point find out how much your local repair person would charge you for an estamate. or contact Boss at 323.890.3700 ext. 2770 Good Luck
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