I’m lost

Subwoofer alto ts215s perfomance !!

Hello, I have a sub alto ts215s and I think it does not give a very powerful! I know that to have the best bass performance you have to activate the button (extended lf), but the subwoofer enters into limit more quickly. Just my two alto ts212 covers the sound of the subwoofer, so I can not get the full power of ts212 speakers. I wonder maybe there is a way to do to have more bass (where to place the subwoofer compared to the speaker, or other way to fix it, ...) Thank you for help and sorry for English (I speak French)

1 person has
this problem