If you keep running your subs with that clipping light. youll destroy them. Clipping is based off your gain settings.
Do this. Turn the gain All the way down on your subwoofer
turn your volume up to the highest you ever listen to it and please dont do max volumeon you headunit.
Play the loudest most bass heavy song you got.
Turn the gain up on your amp till that clipping light starts blinking then back off like 1/8 in.
Now what you just did is found the highest volume/most bass you can use and still get a clean signal that doesnt hurt your subs.
You might think, There is no bass now. Thats because you dont have enough power to your subs. Get better wiring OFC. NOT CCA. and a better amp. youll be happy.
If you run your subs with a clipped signal. You wont have subs for long