so i have a Sony HU, Infinity speakers in the doors(swivel tweeters) 2-way, and two kenwood 3-way speakers in the panels and when i turn it up about half way the vocals are just piercing and hard to listen to, especially on like S sounds almost. is there something i can change on the equalizer to tone it down? it has a custom EQ but have no clue about what frequencies to change. thanks.