Everything

None

Great bang for the buck! actually when used in 5.1 stereo applications completes the soundstage for overall midrange.
I have the e:XL 26s for mains and they do lack some mids on certain types of music but the C2 more than makes up for it.
and it's outstanding on HT! overall this is a great center speaker, I highly recommend it.

I have had this hooked up with 4 XL-16's and the Exl-10 sub for a couple months now and it sounds GREAT!! Timber-matched to the others, the pans in home theater are flawless. It is also very crisp in piping out dialogue from the TV or my DVD's....no complaints whatsoever!