ive had my amp (MTX Thunder 564) installed in my trunk for a few weeks now. recently with the temperature getting hotter the amp starts to overheat after an hour or 2 of driving & shuts off. i'm wondering how others solve this problem. ive looked up "amp fans" & other devices but they seem a dinky for what they need to do. anyone ever deal these "amp fans" & how well do they work? i'm also thinking about putting "air tunnels/vents" from inbetween my back seats (on a curving slope just incase of water/spill) through to my trunk.

any & all advices/idea would be great... thanks

Amp fans aren't the answer in this situation. If the amp is overheating enough to shut off then amp fans won't fix the problem.
First check a few things.
1) the amp ground. Make sure this is in direct contant with the vehicle chassis. Not a seat belt bolt or other accesory bolt. The paint and primer should be scraped away so that the ring terminal is in good(alot of surface area of the ring terminal to the chassis) direct contact with the metal of the chassis.
2)Make sure the Wire gauge is large enough to support the amplifier. 8awg should suffice for your amp.
3) Make sure your amp isn't smothered. It needs air to dissipate the heat from the heatsink. You don't need amp fans to accomplish this.
4) make sure the amp can handle the speaker impedance load. For example if you have bridged the amp and presented a 2 ohm load to each channel the amp is not rated for this and can cause overheating and amp failure.

Hope this helps.

I agree with phil, especially with #3.

The amp needs a massive amount of air, especially since mtx doesn't come with fans or heatsincs.

Change the amp, under power. overdrive, overload cause the amp overheat. or your power cable is too small, current flow not sfficient enough cause overheat.

alright cool thanks everyone for all the input. i have a 4ga wire running to it rite now so its got enough power. i definitely have to check the ground b/c the connection probably isn't not good enough & i'm using a bigger wire than the power. the ground is a 4ga high capacity 1800+ strands while the power has regular 4ga. i think the impedence load for my rear speakers mite be doing it too. I know this is going to sound very bad - but bare with me. i messed up the amp by running a + to + instead of to - so the rear left chn. doesn't work anymore. i paralleled my two rear speakers to the right rear channel. its been fine for a bit but ive done some changes (3 out of 4 speakers were changed) over the weekend thats why its giving me issues now.

i changed my ground wire to match the power wire & had my backseat out for the airflow. even with these changes it still going off. i'm pretty sure its my impedance load that is causing it to overheat/shutdown. since the rear speakers are paralleled on 1 channel, instead of 2, its probably taking it to 2 impedance load instead of the 4 IL it should be. im pretty sure about this b/c when i disconnect one of the two paralleled rear speakers - my front speakers drop majorly (volumes, constant power, hittingness, etc). i think im going to bridge the rear channel until i get my amp serviced & hope i didnt mess up my front component speakers (alpine spr-176a)....

Yea that is most likely your problem. I would keep them disconnected to prevent any further damage of the amp. I would suggest getting a Digital multimeter(DMM) ~20 bucks and can help determine other problems with the audio system. It can also be used for a multitude of other things in the car.

check, did your speaker wire connect in a reverse - / +, if not, than you can't expext to have a small car to tow a truck. you were damage your car.

thanks phil. i just was showing my car friend my weekends project. instead of disconnecting the rear speakers i just hooked up one of them the dead channel & the sound became much overall. too bad not like it was with the "overload" setup and i dont think i did that much damage to my type-r component systems. im definitely getting one of the meters and ive also learned the hard way (from my mistakes) but i wont repeat them....

and dave yeah theyre hooked up the right way

Than too bad, your amp is under power.
for better perform, alway get at-least 40% higher power than your speaker.

get a truck to tow a small car, dont expect a small car were tow a big truck.

When did we start talking about towing?
theres no need to have 40% more power then you need. Why? because you will want to use it. Sure you will tell yourself I will be responsible and not use the extra power but over time you will turn that gain up little by little and you will end up causing thermal damage.
That amp should be fine for those speakers. Once he corrects the problem of the speaker impedance load it should be fine.