New center speaker

alcapo
alcapo Posts: 1
edited March 2010 in Speakers
I have
two Monitor Series 4 speakers for my front l/r,
and a technics sa-afc32 center speaker.

It sounds good but what would you suggest I use to "upgrade" my center speaker.

My room size is 14x18.
I was looking at Polk cs1, cs2, cs100, cs10.
Would any of these be a right choice?