In the perfect world, all speakers should be exactly the same. This is rarely practical, so usually the surrounds are different and very often the center as well.
I would get a center that is designed to match your fronts... yes, you can get close with a different brand (you can also go very wrong with a different brand...). I used to use a Linn center with my Thiel fronts and thought it sounded good. That was until I got a matching Thiel center and only after that did I realize how much I had given up by not matching my fronts...
I would get a center that is designed to match your fronts... yes, you can get close with a different brand (you can also go very wrong with a different brand...). I used to use a Linn center with my Thiel fronts and thought it sounded good. That was until I got a matching Thiel center and only after that did I realize how much I had given up by not matching my fronts...