We like the onkyo s5500 system except that some tv dialog isn't clear. I assume that a new center speaker might help Which one is the question. It sits on the stand in front of the tv, so a maximum of 5"
high and a cost below $250
Would the def tech procenter 1000 or the polk TL3 do the job, if so which would be better or is there another one out there I should consider. ?