Sound Set-Up Problem, Suddenly stopped working

[DragOn]

Good day to y'all peeps!

I hope some of you can help me with my problem. The subwoofer on the set-up just suddenly stopped working. Here's the set-up:

Lightning Audio Strike S2600.2 Amplifier
Kicker Solo Baric S12L7 Subwoofer
Pioneer DEH-4050 Head Unit

So what do you think can be the problem? The light on the amp still lights up when I turn on the sytem. There's just no osund coming out from the subwoofer. All the fuses are ok, too. I think there still is power going into the sub, because if I flip one of the switches on the amp such as the SUB SONIC control, or Active Crossover Filter to either High, flat or Low, a popping sound comes from the sub.

What do you think? Any help or suggestion is highly appreciated!

Thanks in advance!

[baurtwellXUV]

popping sound? san mo pina install yung set up mo sir?!