I am pleased to say that I have come probably as close as you can, to blending in the KLH 15' sub, with the LSi-9's. No, its not a perfect match, but something simular to a match is there! hahah
Alas, the KLH is incredibly limited.... it can blend perfectly with the 9's on some material (ala, incubus, linkin park, pink floyd), but will become horribly obvious with softer forms of music.
Progress is progress right? The sick part is - I most likely will not be keeping the sub !LOL!