adjustment

What's up everybody so I just installed a 12-in comp. VR ported kicker in a Dodge. The head unit pushes out 777 w. RMS around there. The amp is 1,500 w. I believe it's a monoblock micro TS power. Anyway, the shop installed just didn't have enough of the low frequency so I am having a hard time...

I have a 3 way system... despite having adjusted the levels of all the speakers, the problem remains that the highs are sometimes a little annoying. I would like to know what is the range of frequencies that can usually bother the ear. 2000/4000Hz? my mids were set to 4600 Hz while the tweeters...

How do you adjust the gain on the wavetech loc and then the gains on my amp? Do you just use the loc? Confused on this part any help would be appreciated.