Recommendation for center channel speaker to match Polk S55 towers

[rnaeye]

I have a pair Polk S55 towers. I have Sony center channel (SSCS8). I am planning to replace it with Polk S30 center. I watch a lot of movies, and I can feel the weakest component is the center in my setup. I use Yamaha RX-V675 receiver.
Two questions:
1) Would I tell the difference between the center channels
2) If I am replacing the center, is there anything else would match to my S55 under 350-400 dollars, such as something from Ascend acoustics (CMT-340 ). I liked their CBM-170 as surrounds. Ascend Acoustics told me that CMT-340 would be a good match with S55. Any suggestions? Thank you. You guys are the best!

 

[Russdawg1]

Try the S30, it’ll be an improvement over the Sony. If you are satisfied, stop there. If not, free returns Best Buy/$10 Crutchfield.

Then you can move to other centers that aren’t as easy to return, IE Ascend CMT340.