halli hello, I have an Alpine 9835R and that has like many a MX = MediaXpander button. As soon as I press the cut-off frequencies or similar are reproduced again and e.g. the subwoofer goes adnn about a lot more. I currently have a 25er JL in the closed housing. he plays sometimes a little quiet ;( and if I press the button plays as if it were n 30er with dut danpf.. now my question, is it good to use the button? to me it almost seems as if it was ne DB lift, so now especially at sub, but at FS also the sound etc. can you use the button without hesitation? or would you advise me not to do so???