Got mission 753's at fron with 75C centre speaker run by a Yamaha DSPA2 Amp. The main sound great, but the centre channel sounds thin, very little bass, voices sound thin. Ive treid every setting butt hey still sound the same. I thought these were meant to be a good centre speaker! So what do I do? I want more weight and warmth but retain the excellent amount of detail they provide. Which centre speakers are really good? I need something that either integrates well with the 753's OR something that has Main speakers in its range which are also excellent.