Amp is not putting out, shuts down

kappas are 2ohm. You are running that amp at 2ohms stereo on front and rear channels. That is a nice amp, but it is a thirsty one. If you have a sub amp as well, then you are not supplying your amps with enough power. drop down to 0 gauge and see if it heats up anymore. Also, try going high pass if you have subs. If you don't have subs. You need to run 4 gauge and make sure you have a great ground.

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Have you checked that it is not the amp that is the problem? This is a fairly common thing to have the amp heat up and the thermal protection shut it down partly. Since the bass drops, a loose connection or bad guitar cable can cause that. If the signal becomes capacitively coupled only the treble will come through and be very distorted. Try a new cable. For the guitar, open the electronics area and look for loose or broken wire.

1) can happen if the speaker is dying - voice coil defective or magnet needs recharging. happens sometimes with low quality speakers. 
2) faulty pre-amp section can reduce overall gain resulting in lower output volume.
3) for old amps dry solders in pre-amp & power amp section can have the same effect.
4) faulty coupling and filter capacitors can severely effect frequency response too.

Could be that you have a partially roasted(blown) coil on one of your subs which will function- but will keep tripping your amp.You can check that out just by using a different set of subs to listen to and by the process of elimination if the problem goes away then you know where the problem is at.Also check your gains you might be riding the gain a little high which causes distortion which causes heat(FAST) which will cause the amp to shut down completely or some amps will decrease output in a programmed attempt to save itself.turn the bass boost down to half if you even use it at all- that too can cause massive distortion in the amp itself,meaning only that if you have the bass boost on your deck turned up and then you turn the boost up on your amp the sound signal is then WAYYY distorted which will cause a thermal shutdown too. Last thing is to make sure that your subs arent running below 2 ohms because i believe that particular amp is designed to put out about 900 watts at 2 ohms.good luck

theres a high low button on your amp

a lot of subs will make a smell when hot. if there is no indication of blown subs turn your gain down on the amp a quarter turn see if that helps. same with bass boost.

you are pulling too much power from your headset to your amps. you should only be using 1 amp front 1 amp back and 1 amp bass if you want to run all those amps which i do not believe it is needed you should be installing capacitors to help with the power. btw that many amps you better put a high power alternator in your car or your battery and/or alternator will burn out quikly

Are you sure you don't have any shorted wiring or defective speakers?

You're drawing a ton of power from the car's electrical system. Get a stiffening capacitor and put it in on the amp's main power cable. If you're draining the car that badly, make sure to get at least a 1 farad cap, bigger if you can, and until you do, turn the gain down and don't run so much bass - you'll kill your battery in the meantime.

Had a similar problem, mine was a power problem.
Power meaning voltage.
Those big bass speakers draw lots of power. My original alternator couldn't keep up.

Question: Do your headlights dim in rhythm to the bass hits?

If so, your sound system wants more power than your vehicle is producing.

My first solution was a high output alternator. It worked great.

Then I added another amp. Not great anymore.

My second solution was to tie in a large capacitor to the amps power supply. (These a big (1 farad), about the size of a Pringles can)

Your amps power consumption is not uniform. Each time your amp punches the bass, it draws extra power. If that power isn't available, it starves and shuts down (if only for a second) then restarts.

The higher the gain, especially using a low pass filter, the more power needed for each thump. Thats why when you turn the bass down, you can get higher volume from the rest of the system.

How a capacitor can help (simply put):
In this application, the capacitor acts like an auxiliary battery, smoothing out power fluxuations. The capacitor builds up its charge literally between bass hits when power demand is low. Then releases it's charge when the demand is high. Think of it as an on-demand power boost.

Hope this helped

Mike