What JM said. Subs rarely sound right and you are much better off with a well designed full range speaker......if possible. I have tried perhaps a dozen and did everything known to man to blend them in, but in the end they hurt the music more than helped it.
I am sure it is possible to help the music more than hurt it, but that seems out of reach based on my experience anyway.
I am sure it is possible to help the music more than hurt it, but that seems out of reach based on my experience anyway.