speakers shut my amp off?

I am having major problems now with my system

I have 4 kicker 2-way speakers running off of 2 channels of a kicker 650.4 amp

I just added a component set to the other 2 channels of my amp, it worked great for a day and now this is what happens, the amp turns off if the volume is above around 10 and I have to have the gain almost all the way down.

If I just have 1 of the component set up it plays fine once the other side is on there to though it just keeps shutting off like every 2 seconds.

I have tried switching the crossovers to see if it was a bad crossover but it seems to work fine on the other side, I tried hooking up different woofers to it but it still worked fine. I then tried swithibg it to another channel and it worked the same so I can't figure out what could cause this or how to fix,  I have relocate them to the rear right next to the amp to make sure it wasn't a problem in my speaker wire somewhere but still no luck I can only run 1 component set at a time, I did find out that it is only happening on 1 side though but like I said I tried a different woofer and a different crossover and still had the same affect of cutting the amp off

I don't like the fact that you're running two sets of coaxials off each channel, and I'm presuming in parallel so that the ohm load is at 2 ohm stereo....but that isn't what you're having a problem with, it seems.

It looks like you're saying that one particular channel goes out when you have the new components connected, even if you switch one component with the other.  Correct?  Which channel is that (1,2,3 or 4)?

Here's the steps you might take now:

• Unhook the new components from the amp.  Ensure that the speakers that were working before are still working as they had been, hooked up as before.  Reset the amp gain (properly, please!) for these speakers.
• Now move those speakers connections to the other two channels, the ones you had connected the components to.  Set the gain for those channels.  Does that channel still go out?  If so, it is a problem at or with the amp.  If not, it is a problem with your new component hookup.
• Then, hook up the new components to the two channels that the coaxials had formerly occupied.  Set the gain for these.  Let the forum know what happened during this test.

Remember, when you post again, to identify the channels by number pair (1,2 or 3,4).  Also, it is a good idea to identify the components, speakers you are using.  And state what the power and ground to this amp are.