Amp getting pretty hot

[zhack 10+ year member]

Alright, I have a RF T3002 running my 12" Kicker L7, wired to 2ohm's. and it gets retarded hot, though not going into thermal mode, after running for about 25min at a decent volume. its mounted under the rear seats of my Grand Cherokee on an angle, the bottom doesnt touch anything. Good air flow under there. and its teh bottom and corner of teh amp that are actually HOT, lik i mean hot that u cant hold your hand there for longer than a few seconds. the top and sides of teh amp are warm, but nothing excessive. i have 4ga wire power and ground wires goin to the amp, power wire has 150A inline fuse. gain isn't retarded either, about maybe 1/3.

Like I said its hasn't gone thermal or shut off yet, but its really hot. I've had this setup for about a week now. I just wondering if anyone out there has a similar setup, or use a RF T3002 and find that it gets pretty hot, and if so, do you use anything special to cool it down.

also, i used to have it mounted on the sub box for a few days, and it got just as hot up there too, so its not a matter of being mounted under the seats, as there is lik 6-8" of clearance room under them.

Click to read more...

 

[Xprime4 10+ year member]

low voltage? if you have a dmm, check the dc voltage at amp input. if it goes under 11v, there's your problem

 

[Buck 5,000+ posts]

Are the channels bridged?

 

[zhack 10+ year member]

ya its running bridged to sub

and it does dim every now and then, i'll check voltage.....if dimming is the problem would it be better to run bigger go wire, or throw a cap in there?

 

[Buck 5,000+ posts]

That amp probably shouldn't be bridged at 2 ohms. Run each channel at 4 ohms.

 

[Xprime4 10+ year member]

ya its running bridged to sub
and it does dim every now and then, i'll check voltage.....if dimming is the problem would it be better to run bigger go wire, or throw a cap in there?

what ga are you running? what alt and batt? If everything is stock then i suggest you run 4ga to the Rf and get a g31 battery agm battery and put it in the back. That's would be a nice start.

 

[Xprime4 10+ year member]

That amp probably shouldn't be bridged at 2 ohms. Run each channel at 4 ohms.

what he said. the sub is dual 4? one coil per channel then

 

[zhack 10+ year member]

why shouldn't it be bridged for 2ohms?

and running 4ga batt to amp, and 4ga amp to ground, 8ga from amp to sub, stock alt and batt

 

[zhack 10+ year member]

what he said. the sub is dual 4? one coil per channel then

honestly, didnt even think of hooking it up like, that..... and its its dual 4ohm

 

[Buck 5,000+ posts]

why shouldn't it be bridged for 2ohms?
and running 4ga batt to amp, and 4ga amp to ground, 8ga from amp to sub, stock alt and batt

That amp is not designed to run at 2 ohms, I don't believe. So try running each channel at 4 ohms and I think it will keep it from getting as warm.

 

[zhack 10+ year member]

That amp is not designed to run at 2 ohms, I don't believe. So try running each channel at 4 ohms and I think it will keep it from getting as warm.

sooo set it up running one channel to one set of VCs and the other channel to teh other set of VCs?

 

[Buck 5,000+ posts]

sooo set it up running one channel to one set of VCs and the other channel to teh other set of VCs?

Yes. Just run one VC to one channel. Then do it again. Of course make sure + and + are hooked up......etc...

 

[zhack 10+ year member]

Yes. Just run one VC to one channel. Then do it again. Of course make sure + and + are hooked up......etc...

lol obiviously, haha

anyways, i'll try it lik that and see if it fixes the heat issue,

thanks

 

[Buck 5,000+ posts]

lol obiviously, haha
anyways, i'll try it lik that and see if it fixes the heat issue,

thanks

Hopefully that does.

GL

 

[DidUHearThat? 10+ year member]

Stop overdriving the shit out of it.

That amp is designed to run at 2 ohms bridge (most stereo amps are not).

300W x 1 @ 2-Ohms bridged RMS
http://www.rockfordfosgate.com/products/product_details.asp?cat_id=2&series_id=7&family_id=23&item_id=100031&locale=en_US

Probably poor air flow over the heat sinks under the seat, and being driven into sustained full clip. It's just a 300 watt amp. If you want more power, get a bigger amp.