Its always OK to adjust the midrange & tweeter levels on the speaker’s baffle - suit to taste. With a little care, this bared wire can be used in the "Insert/twist" speaker wire receptacles of the L112. Use 2 leads for + and one for -. Be consistent so nothing smokes. It works remarkably well on my L96 10" versions.
https://6moons.com/audioreviews/whitelightning/moonshine.html
https://6moons.com/audioreviews/whitelightning/moonshine.html