Seriously, when I turn on my monoblock until half... The light will go dimp and voltage power drop until 11.. or 10.8 according to my device.. What should I do, I can't even enjoy full power of my sub.. I heard it will damage my monoblock if volt not enough... Sometimes it cut off by itself too I heard cap will make a little bit different, but I need better solution and sure solve my prob~~

1st list ur setup.

I think u need to set all of ur hu and amp gain. 1st lower down all ur amp gains, then turn ur hu gain to 75-80%, then turn on ur component amp to max listening level (till u hit distortion) then lower down abit. Then increase ur mono gain to blend nicely.