I could solve my problem, for those who want to take these things into account, what happened was that one of the subwoofer terminals was desoldered and made minimal sparks, when I disassembled it and after seeing this situation I soldered it again, after that the fault continued, so the power did not give me the necessary power. What I did was disconnect two input channels (because I was actually using only one), and just leave it in two, (leave the rear that are the best sound), doing this I had once or twice which worked badly for me but when changing the output channel the subwoofer worked perfect so the problem happened to minors and probably comes from the power MOSFET. Until today, two weeks have passed since it works for me.