I hate to tell you that having the center matched is critical. Sound will tarvel accross the frount 3 speakers alot and if they are voiced differently you will notice. Also a good center is the most important thing in a good HT because 80% of your sound comes from it.
I had a similar situation I had Canton speakers loved them but couldn't get a matching center so I sold them just because of that.
I had a similar situation I had Canton speakers loved them but couldn't get a matching center so I sold them just because of that.